firehol-services(5)

NAME

firehol-services - FireHOL services list

SYNOPSIS

AH all amanda any anystateless apcupsd apcupsdnis aptproxy asterisk

cups custom cvspserver

darkstat daytime dcc dcpp dhcp dhcprelay dhcpv6 dict distcc dns

echo emule eserver ESP

finger ftp

gift giftui gkrellmd GRE

h323 heartbeat http httpalt https hylafax

iax iax2 ICMP icmp ICMPV6 icmpv6 icp ident imap imaps ipsecnatt ipv6error ipv6mld ipv6neigh ipv6router irc isakmp

jabber jabberd

l2tp ldap ldaps lpd

microsoft_ds mms msn msnp ms_ds multicast mysql

netbackup netbios_dgm netbios_ns netbios_ssn nfs nis nntp nntps nrpe ntp nut nxserver

openvpn oracle OSPF

ping pop3 pop3s portmap postgres pptp privoxy

radius radiusold radiusoldproxy radiusproxy rdp rndc rsync rtp

samba sane sip smtp smtps snmp snmptrap socks squid ssh stun submission sunrpc swat syslog

telnet tftp time timestamp tomcat

upnp uucp

vmware vmwareauth vmwareweb vnc

webcache webmin whois

xbox xdmcp

DESCRIPTION

  service: AH

IPSec Authentication Header (AH)
    Example:

          server AH accept

    Service Type:

    •   simple

    Server Ports:

    •   51/any

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-AH]

    Notes

        For more information see this Archive of the FreeS/WAN documentation (http://web.archive.org/web/20100918134143/http://www.freeswan.org/freeswan_trees/freeswan-1.99/doc/ipsec.html#AH.ipsec) and RFC 2402 (http://www.ietf.org/rfc/rfc2402.txt). [WIKI-AH]: http://en.wikipedia.org/wiki/IPsec#Authentication_Header

  service: all

Match all traffic
    Example:

          server all accept

    Service Type:

    •   simple

    Server Ports:

    •   all

    Client Ports:

    •   all

    Netfilter Modules

    •   nf_conntrack_ftp CONFIG_NF_CONNTRACK_FTP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_FTP.html)

    •   nf_conntrack_irc CONFIG_NF_CONNTRACK_IRC (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_IRC.html)

    •   nf_conntrack_sip CONFIG_NF_CONNTRACK_SIP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_SIP.html)

    •   nf_conntrack_pptp CONFIG_NF_CONNTRACK_PPTP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_PPTP.html)

    •   nf_conntrack_proto_gre CONFIG_NF_CT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_CT_PROTO_GRE.html)

    Netfilter NAT Modules

    •   nf_nat_ftp CONFIG_NF_NAT_FTP (http://cateee.net/lkddb/web-lkddb/NF_NAT_FTP.html)

    •   nf_nat_irc CONFIG_NF_NAT_IRC (http://cateee.net/lkddb/web-lkddb/NF_NAT_IRC.html)

    •   nf_nat_sip CONFIG_NF_NAT_SIP (http://cateee.net/lkddb/web-lkddb/NF_NAT_SIP.html)

    •   nf_nat_pptp CONFIG_NF_NAT_PPTP (http://cateee.net/lkddb/web-lkddb/NF_NAT_PPTP.html)

    •   nf_nat_proto_gre CONFIG_NF_NAT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_NAT_PROTO_GRE.html)

    Notes

        Matches all traffic (all protocols, ports, etc.). Note that to provide “connections in one direction with replies” semantics, the kernel connection tracker is still used: this will therefore still not match packets if they are not understood as part of a connection (e.g. some ICMPv6 packets, requests and replies taking different routes, complex protocols with no helper loaded).

        This service may indirectly setup a set of other services, if they require kernel modules to be loaded. The following complex services are activated:

  service: amanda

Advanced Maryland Automatic Network Disk Archiver
    Service Type:

    •   simple

    Server Ports:

    •   udp/10080

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_amanda CONFIG_NF_CONNTRACK_AMANDA (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_AMANDA.html)

    Netfilter NAT Modules

    •   nf_nat_amanda CONFIG_NF_NAT_AMANDA (http://cateee.net/lkddb/web-lkddb/NF_NAT_AMANDA.html)

    Links

    •   Homepage (http://www.amanda.org/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Advanced_Maryland_Automatic_Network_Disk_Archiver)

  service: any

Match all traffic (without modules or indirect)
    Example:

          server any *myname* accept proto 47

    Service Type:

    •   simple

    Server Ports:

    •   all

    Client Ports:

    •   all

    Notes

        Matches all traffic (all protocols, ports, etc), but does not care about kernel modules and does not activate any other service indirectly. In combination with the firehol-params(5) this service can match unusual traffic (e.g. GRE - protocol 47).

        Note that you have to supply your own name in addition to “any”.

  service: anystateless

Match all traffic statelessly
    Example:

          server anystateless *myname* accept proto 47

    Service Type:

    •   complex

    Server Ports:

    •   all

    Client Ports:

    •   all

    Notes

        Matches all traffic (all protocols, ports, etc), but does not care about kernel modules and does not activate any other service indirectly. In combination with the firehol-params(5) this service can match unusual traffic (e.g. GRE - protocol 47).

        This service is identical to “any” but does not care about the state of traffic.

        Note that you have to supply your own name in addition to “anystateless”.

  service: apcupsd

APC UPS Daemon
    Example:

          server apcupsd accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/6544

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-apcupsd]

    •   [Wikipedia][WIKI-apcupsd]

    Notes

        This service must be defined as “server apcupsd accept” on all machines not directly connected to the UPS (i.e. slaves).

        Note that the port defined here is not the default port (6666) used if you download and compile APCUPSD, since the default conflicts with IRC and many distributions (like Debian) have changed this to 6544.

        You can define port 6544 in APCUPSD, by changing the value of NETPORT in its configuration file, or overwrite this FireHOL service definition using the procedures described in Adding Services in firehol.conf(5). [HOME-apcupsd]: http://www.apcupsd.com [WIKI-apcupsd]: http://en.wikipedia.org/wiki/Apcupsd

  service: apcupsdnis

APC UPS Daemon Network Information Server
    Example:

          server apcupsdnis accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3551

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-apcupsdnis]

    •   [Wikipedia][WIKI-apcupsdnis]

    Notes

        This service allows the remote WEB interfaces of APCUPSD (http://www.apcupsd.com/), to connect and get information from the server directly connected to the UPS device. [HOME-apcupsdnis]: http://www.apcupsd.com [WIKI-apcupsdnis]: http://en.wikipedia.org/wiki/Apcupsd

  service: aptproxy

Advanced Packaging Tool Proxy
    Example:

          server aptproxy accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/9999

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Apt-proxy)

  service: asterisk

Asterisk PABX
    Example:

          server asterisk accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5038

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-asterisk]

    •   [Wikipedia][WIKI-asterisk]

    Notes

        This service refers only to the manager interface of asterisk. You should normally enable sip, h323, rtp, etc. at the firewall level, if you enable the relative channel drivers of asterisk. [HOME-asterisk]: http://www.asterisk.org [WIKI-asterisk]: http://en.wikipedia.org/wiki/Asterisk_PBX

  service: cups

Common UNIX Printing System
    Example:

          server cups accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/631 udp/631

    Client Ports:

    •   any

    Links

    •   Homepage (http://www.cups.org)

    •   Wikipedia (http://en.wikipedia.org/wiki/Common_Unix_Printing_System)

  service: custom

Custom definitions
    Example:

          server custom myimap tcp/143 default accept

    Service Type:

    •   custom

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Notes

        The full syntax is:

        subcommand custom name svr-proto/ports cli-ports action params

        This service is used by FireHOL to allow you create rules for services which do not have a definition.

        subcommand, action and params have their usual meanings.

        A name must be supplied along with server ports in the form proto/range and client ports which takes only a range.

        To define services with the built-in extension mechanism to avoid the need for custom services, see Adding Services in firehol.conf(5).

  service: cvspserver

Concurrent Versions System
    Example:

          server cvspserver accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/2401

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.nongnu.org/cvs/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Concurrent_Versions_System)

  service: darkstat

Darkstat network traffic analyser
    Example:

          server darkstat accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/666

    Client Ports:

    •   default

    Links

    •   Homepage (https://unix4lyfe.org/darkstat/)

  service: daytime

Daytime Protocol
    Example:

          server daytime accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/13

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Daytime_Protocol)

  service: dcc

Distributed Checksum Clearinghouse
    Example:

          server dcc accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/6277

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-dcc]

    Notes

        See also this DCC FAQ (http://www.rhyolite.com/dcc/FAQ.html#firewall-ports). [WIKI-dcc]: http://en.wikipedia.org/wiki/Distributed_Checksum_Clearinghouse

  service: dcpp

Direct Connect++ P2P
    Example:

          server dcpp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1412 udp/1412

    Client Ports:

    •   default

    Links

    •   Homepage (http://dcplusplus.sourceforge.net)

  service: dhcp

Dynamic Host Configuration Protocol
    Example:

          server dhcp accept

    Service Type:

    •   complex

    Server Ports:

    •   udp/67

    Client Ports:

    •   68

    Links

    •   [Wikipedia][WIKI-dhcp]

    Notes

        The dhcp service is implemented as stateless rules.

        DHCP clients broadcast to the network (src 0.0.0.0 dst 255.255.255.255) to find a DHCP server. If the DHCP service was stateful the iptables connection tracker would not match the packets and deny to send the reply.

        Note that this change does not affect the security of either DHCP servers or clients, since only the specific ports are allowed (there is no random port at either the server or the client side).

        Note also that the “server dhcp accept” or “client dhcp accept” commands should placed within interfaces that do not have src and / or dst defined (because of the initial broadcast).

        You can overcome this problem by placing the DHCP service on a separate interface, without a src or dst but with a policy return. Place this interface before the one that defines the rest of the services.

        For example:

        interface eth0 dhcp

        policy return

        server dhcp accept

        interface eth0 lan src "$mylan" dst "$myip"

        client all accept

        For example: interface eth0 dhcp policy return server dhcp accept interface eth0 lan src “$mylan" dst "$myip” client all accept

        This service implicitly sets its client or server to ipv4 mode. [WIKI-dhcp]: http://en.wikipedia.org/wiki/Dhcp

  service: dhcprelay

DHCP Relay
    Example:

          server dhcprelay accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/67

    Client Ports:

    •   67

    Links

    •   [Wikipedia][WIKI-dhcprelay]

    Notes

        From RFC 1812 section 9.1.2:

        In many cases, BOOTP clients and their associated BOOTP server(s) do not reside on the same IP (sub)network. In such cases, a third-party agent is required to transfer BOOTP messages between clients and servers. Such an agent was originally referred to as a BOOTP forwarding agent. However, to avoid confusion with the IP forwarding function of a router, the name BOOTP relay agent has been adopted instead.

        For more information about DHCP Relay see section 9.1.2 of RFC 1812 (http://www.ietf.org/rfc/rfc1812.txt) and section 4 of RFC 1542 (http://www.ietf.org/rfc/rfc1542.txt) [WIKI-dhcprelay]: http://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol#DHCP_relaying

  service: dhcpv6

Dynamic Host Configuration Protocol for IPv6
    Example:

          server dhcpv6 accept
          client dhcpv6 accept

    Service Type:

    •   complex

    Server Ports:

    •   udp/547

    Client Ports:

    •   udp/546

    Links

    •   [Wikipedia][WIKI-dhcpv6]

    Notes

        The dhcp service is implemented as stateless rules. It cannot be stateful as the connection tracker will not match a unicast reply to a broadcast request. Further, if you wish to add src/dst rule parameters, you must account for both the broadcast and link-local network prefixes.

        Clients broadcast from a link-local address to the multicast address ff02::1:2 on UDP port 547 to find a server. The server sends a unicast reply back to the client which listens on UDP port 546.

        For a FireHOL interface, creating a client will allow sending to port 547 and receiving on port 546. Creating a server allows sending to port 546 and receiving on port 547.

        Unlike DHCP for IPv4, the source ports to be used are not defined in DHCPv6 - see section 5.2 of RFC3315 (http://www.ietf.org/rfc/rfc3315.txt). Some servers are known to make use of this to send from arbitrary ports, so FireHOL does not assume a source port.

        This service implicitly sets its client or server to ipv6 mode. [WIKI-dhcpv6]: https://en.wikipedia.org/wiki/DHCPv6

  service: dict

Dictionary Server Protocol
    Example:

          server dict accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/2628

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-dict]

    Notes

        See RFC2229 (http://www.ietf.org/rfc/rfc2229.txt). [WIKI-dict]: http://en.wikipedia.org/wiki/DICT

  service: distcc

Distributed CC
    Example:

          server distcc accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3632

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-distcc]

    •   [Wikipedia][WIKI-distcc]

    Notes

        For distcc security, please check the distcc security design (http://distcc.googlecode.com/svn/trunk/doc/web/security.html). [HOME-distcc]: https://code.google.com/p/distcc/ [WIKI-distcc]: http://en.wikipedia.org/wiki/Distcc

  service: dns

Domain Name System
    Example:

          server dns accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/53 tcp/53

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-dns]

    Notes

        On very busy DNS servers you may see a few dropped DNS packets in your logs. This is normal. The iptables connection tracker will timeout the session and lose unmatched DNS packets that arrive too late to be useful. [WIKI-dns]: http://en.wikipedia.org/wiki/Domain_Name_System

  service: echo

Echo Protocol
    Example:

          server echo accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/7

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Echo_Protocol)

  service: emule

eMule (Donkey network client)
    Example:

          client emule accept src 192.0.2.1

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   many

    Links

    •   [Homepage][HOME-emule]

    Notes

        According to eMule Port Definitions (http://www.emule-project.net/home/perl/help.cgi?l=1&rm=show_topic&topic_id=122), FireHOL defines:

        •   Accept from any client port to the server at tcp/4661

        •   Accept from any client port to the server at tcp/4662

        •   Accept from any client port to the server at udp/4665

        •   Accept from any client port to the server at udp/4672

        •   Accept from any server port to the client at tcp/4662

        •   Accept from any server port to the client at udp/4672

        Use the FireHOL firehol-client(5) command to match the eMule client.

        Please note that the eMule client is an HTTP client also. [HOME-emule]: http://www.emule-project.com

  service: eserver

eDonkey network server
    Example:

          server eserver accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/4661 udp/4661 udp/4665

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Eserver)

  service: ESP

IPSec Encapsulated Security Payload (ESP)
    Example:

          server ESP accept

    Service Type:

    •   simple

    Server Ports:

    •   50/any

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-ESP]

    Notes

        For more information see this Archive of the FreeS/WAN documentation (http://web.archive.org/web/20100918134143/http://www.freeswan.org/freeswan_trees/freeswan-1.99/doc/ipsec.html#ESP.ipsec) RFC 2406 (http://www.ietf.org/rfc/rfc2406.txt). [WIKI-ESP]: http://en.wikipedia.org/wiki/IPsec#Encapsulating_Security_Payload

  service: finger

Finger Protocol
    Example:

          server finger accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/79

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Finger_protocol)

  service: ftp

File Transfer Protocol
    Example:

          server ftp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/21

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_ftp CONFIG_NF_CONNTRACK_FTP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_FTP.html)

    Netfilter NAT Modules

    •   nf_nat_ftp CONFIG_NF_NAT_FTP (http://cateee.net/lkddb/web-lkddb/NF_NAT_FTP.html)

    Links

    •   [Wikipedia][WIKI-ftp]

    Notes

        The FTP service matches both active and passive FTP connections. [WIKI-ftp]: http://en.wikipedia.org/wiki/Ftp

  service: gift

giFT Internet File Transfer
    Example:

          server gift accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/4302 tcp/1214 tcp/2182 tcp/2472

    Client Ports:

    •   any

    Links

    •   [Homepage][HOME-gift]

    •   [Wikipedia][WIKI-gift]

    Notes

        The gift FireHOL service supports:

        •   Gnutella listening at tcp/4302

        •   FastTrack listening at tcp/1214

        •   OpenFT listening at tcp/2182 and tcp/2472

        The above ports are the defaults given for the corresponding giFT modules.

        To allow access to the user interface ports of giFT, use the giftui. [HOME-gift]: http://gift.sourceforge.net [WIKI-gift]: http://en.wikipedia.org/wiki/GiFT

  service: giftui

giFT Internet File Transfer User Interface
    Example:

          server giftui accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1213

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-giftui]

    •   [Wikipedia][WIKI-giftui]

    Notes

        This service refers only to the user interface ports offered by giFT. To allow gift accept P2P requests, use the gift. [HOME-giftui]: http://gift.sourceforge.net [WIKI-giftui]: http://en.wikipedia.org/wiki/GiFT

  service: gkrellmd

GKrellM Daemon
    Example:

          server gkrellmd accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/19150

    Client Ports:

    •   default

    Links

    •   Homepage (http://gkrellm.net/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Gkrellm)

  service: GRE

Generic Routing Encapsulation
    Example:

          server GRE accept

    Service Type:

    •   simple

    Server Ports:

    •   47/any

    Client Ports:

    •   any

    Netfilter Modules

    •   nf_conntrack_proto_gre CONFIG_NF_CT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_CT_PROTO_GRE.html)

    Netfilter NAT Modules

    •   nf_nat_proto_gre CONFIG_NF_NAT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_NAT_PROTO_GRE.html)

    Links

    •   [Wikipedia][WIKI-GRE]

    Notes

        Protocol No 47.

        For more information see RFC RFC 2784 (http://www.ietf.org/rfc/rfc2784.txt). [WIKI-GRE]: http://en.wikipedia.org/wiki/Generic_Routing_Encapsulation

  service: h323

H.323 VoIP
    Example:

          server h323 accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1720 tcp/1720

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_h323 CONFIG_NF_CONNTRACK_H323 (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_H323.html)

    Netfilter NAT Modules

    •   nf_nat_h323 CONFIG_NF_NAT_H323 (http://cateee.net/lkddb/web-lkddb/NF_NAT_H323.html)

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/H323)

  service: heartbeat

HeartBeat
    Example:

          server heartbeat accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/690:699

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-heartbeat]

    Notes

        This FireHOL service has been designed such a way that it will allow multiple heartbeat clusters on the same LAN. [HOME-heartbeat]: http://www.linux-ha.org/

  service: http

Hypertext Transfer Protocol
    Example:

          server http accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/80

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Http)

  service: httpalt

HTTP alternate port
    Example:

          server httpalt accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/8080

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-httpalt]

    Notes

        This port is commonly used by web servers, web proxies and caches where the standard http port is not available or can or should not be used. [WIKI-httpalt]: http://en.wikipedia.org/wiki/Http

  service: https

Secure Hypertext Transfer Protocol
    Example:

          server https accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/443

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Https)

  service: hylafax

HylaFAX
    Example:

          server hylafax accept

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   many

    Links

    •   [Homepage][HOME-hylafax]

    •   [Wikipedia][WIKI-hylafax]

    Notes

        This service allows incoming requests to server port tcp/4559 and outgoing from server port tcp/4558.

        The correct operation of this service has not been verified.

        USE THIS WITH CARE. A HYLAFAX CLIENT MAY OPEN ALL TCP UNPRIVILEGED PORTS TO ANYONE (from port tcp/4558). [HOME-hylafax]: http://www.hylafax.org/ [WIKI-hylafax]: http://en.wikipedia.org/wiki/Hylafax

  service: iax

Inter-Asterisk eXchange
    Example:

          server iax accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/5036

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-iax]

    •   [Wikipedia][WIKI-iax]

    Notes

        This service refers to IAX version 1. There is also iax2. [HOME-iax]: http://www.asterisk.org [WIKI-iax]: http://en.wikipedia.org/wiki/Iax

  service: iax2

Inter-Asterisk eXchange v2
    Example:

          server iax2 accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/5469 udp/4569

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-iax2]

    •   [Wikipedia][WIKI-iax2]

    Notes

        This service refers to IAX version 2. There is also iax. [HOME-iax2]: http://www.asterisk.org [WIKI-iax2]: http://en.wikipedia.org/wiki/Iax

  service: ICMP

Internet Control Message Protocol
    Example:

          server ICMP accept

    Service Type:

    •   simple

    Server Ports:

    •   icmp/any

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol)

  service: icmp

Internet Control Message Protocol
    Alias for ICMP

  service: ICMPV6

Internet Control Message Protocol v6
    Example:

          server ICMPV6 accept

    Service Type:

    •   simple

    Server Ports:

    •   icmpv6/any

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/ICMPv6)

  service: icmpv6

Internet Control Message Protocol v6
    Alias for ICMPV6

  service: icp

Internet Cache Protocol
    Example:

          server icp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/3130

    Client Ports:

    •   3130

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Internet_Cache_Protocol)

  service: ident

Identification Protocol
    Example:

          server ident reject with tcp-reset

    Service Type:

    •   simple

    Server Ports:

    •   tcp/113

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Ident_protocol)

  service: imap

Internet Message Access Protocol
    Example:

          server imap accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/143

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Imap)

  service: imaps

Secure Internet Message Access Protocol
    Example:

          server imaps accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/993

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Imap)

  service: ipsecnatt

NAT traversal and IPsec
    Service Type:

    •   simple

    Server Ports:

    •   udp/4500

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/NAT_traversal#IPsec_traversal_across_NAT)

  service: ipv6error

ICMPv6 Error Handling
    Example:

          server ipv6error accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Notes

        This service is not needed from 3.0.0. It will do nothing but issue a warning from 3.1.0; it will be removed in 4.0.0.

        The linux connection tracker ensures that ICMPv6 errors are marked as RELATED. Since 3.0.0, these are automatically accepted by FireHOL, making a separate command redundant.

  service: ipv6mld

IPv6 Multicast Listener Discovery for IPv6
    Example:

          client ipv6mld accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-ipv6mld]

    Notes

        IPv6 uses Multicast Listener Discovery to discover multicast listeners and what they are listening for.

        In practice all IPv6 nodes are multicast listeners since multicast is used in the neighbour discovery protocol which replaces ARP in IPv4.

        These rules are stateless since reports can happen automatically as well as on query.

        Unless multicast snooping is disabled across the network, MLD should be enabled for any clients:

        client ipv6mld accept

        MLD should also be enabled as a server on any hosts acting as a router:

        server ipv6mld accept

        The rules should generally not be used to pass packets across a firewall (e.g. in a router definition) unless the firewall is for a bridge.

        This service implicitly sets its client or server to ipv6 mode. [WIKI-ipv6mld]: https://en.wikipedia.org/wiki/Multicast_Listener_Discovery

  service: ipv6neigh

IPv6 Neighbour discovery
    Example:

          client ipv6neigh accept
          server ipv6neigh accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-ipv6neigh]

    Notes

        IPv6 uses the Neighbour Discovery Protocol to do automatic configuration of routes and to replace ARP. To allow this functionality the network neighbour and router solicitation/advertisement messages should be enabled on each interface.

        These rules are stateless since advertisement can happen automatically as well as on solicitation.

        Neighbour discovery (incoming) should always be enabled:

        server ipv6neigh accept

        Neighbour advertisement (outgoing) should always be enabled:

        client ipv6neigh accept

        The rules should not be used to pass packets across a firewall (e.g. in a router definition) unless the firewall is for a bridge.

        This service implicitly sets its client or server to ipv6 mode. [WIKI-ipv6neigh]: https://en.wikipedia.org/wiki/Neighbor_Discovery_Protocol

  service: ipv6router

IPv6 Router discovery
    Example:

          client ipv6router accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-ipv6router]

    Notes

        IPv6 uses the Neighbour Discovery Protocol to do automatic configuration of routes and to replace ARP. To allow this functionality the network neighbour and router solicitation/advertisement messages should be enabled on each interface.

        These rules are stateless since advertisement can happen automatically as well as on solicitation.

        Router discovery (incoming) should always be enabled:

        client ipv6router accept

        Router advertisement (outgoing) should be enabled on a host that routes:

        server ipv6router accept

        The rules should not be used to pass packets across a firewall (e.g. in a router definition) unless the firewall is for a bridge.

        This service implicitly sets its client or server to ipv6 mode. [WIKI-ipv6router]: https://en.wikipedia.org/wiki/Neighbor_Discovery_Protocol

  service: irc

Internet Relay Chat
    Example:

          server irc accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/6667

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_irc CONFIG_NF_CONNTRACK_IRC (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_IRC.html)

    Netfilter NAT Modules

    •   nf_nat_irc CONFIG_NF_NAT_IRC (http://cateee.net/lkddb/web-lkddb/NF_NAT_IRC.html)

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Internet_Relay_Chat)

  service: isakmp

Internet Security Association and Key Management Protocol (IKE)
    Example:

          server isakmp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/500

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-isakmp]

    Notes

        For more information see the Archive of the FreeS/WAN documentation (http://web.archive.org/web/20100918134143/http://www.freeswan.org/freeswan_trees/freeswan-1.99/doc/ipsec.html#IKE.ipsec) [WIKI-isakmp]: http://en.wikipedia.org/wiki/ISAKMP

  service: jabber

Extensible Messaging and Presence Protocol
    Example:

          server jabber accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5222 tcp/5223

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-jabber]

    Notes

        Allows clear and SSL client-to-server connections. [WIKI-jabber]: http://en.wikipedia.org/wiki/Jabber

  service: jabberd

Extensible Messaging and Presence Protocol (Server)
    Example:

          server jabberd accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5222 tcp/5223 tcp/5269

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-jabberd]

    Notes

        Allows clear and SSL client-to-server and server-to-server connections.

        Use this service for a jabberd server. In all other cases, use the jabber. [WIKI-jabberd]: http://en.wikipedia.org/wiki/Jabber

  service: l2tp

Layer 2 Tunneling Protocol
    Service Type:

    •   simple

    Server Ports:

    •   udp/1701

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/L2tp)

  service: ldap

Lightweight Directory Access Protocol
    Example:

          server ldap accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/389

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Ldap)

  service: ldaps

Secure Lightweight Directory Access Protocol
    Example:

          server ldaps accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/636

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Ldap)

  service: lpd

Line Printer Daemon Protocol
    Example:

          server lpd accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/515

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-lpd]

    Notes

        LPD is documented in RFC 1179 (http://www.ietf.org/rfc/rfc1179.txt).

        Since many operating systems incorrectly use the non-default client ports for LPD access, this definition allows any client port to access the service (in addition to the RFC defined 721 to 731 inclusive). [WIKI-lpd]: http://en.wikipedia.org/wiki/Line_Printer_Daemon_protocol

  service: microsoft_ds

Direct Hosted (NETBIOS-less) SMB
    Example:

          server microsoft_ds accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/445

    Client Ports:

    •   default

    Notes

        Direct Hosted (i.e. NETBIOS-less SMB)

        This is another NETBIOS Session Service with minor differences with netbios_ssn. It is supported only by Windows 2000 and Windows XP and it offers the advantage of being independent of WINS for name resolution.

        It seems that samba supports transparently this protocol on the netbios_ssn ports, so that either direct hosted or traditional SMB can be served simultaneously.

        Please refer to the netbios_ssn for more information.

  service: mms

Microsoft Media Server
    Example:

          server mms accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1755 udp/1755

    Client Ports:

    •   default

    Netfilter Modules

    •   See here (http://www.netfilter.org/documentation/HOWTO/netfilter-extensions-HOWTO-5.html#ss5.5).

    Netfilter NAT Modules

    •   See here (http://www.netfilter.org/documentation/HOWTO/netfilter-extensions-HOWTO-5.html#ss5.5).

    Links

    •   [Wikipedia][WIKI-mms]

    Notes

        Microsoft’s proprietary network streaming protocol used to transfer unicast data in Windows Media Services (previously called NetShow Services). [WIKI-mms]: http://en.wikipedia.org/wiki/Microsoft_Media_Server

  service: msn

Microsoft MSN Messenger Service
    Example:

          server msn accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1863 udp/1863

    Client Ports:

    •   default

  service: msnp

msnp
    Example:

          server msnp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/6891

    Client Ports:

    •   default

  service: ms_ds

Direct Hosted (NETBIOS-less) SMB
    Alias for microsoft_ds

  service: multicast

Multicast
    Example:

          server multicast reject with proto-unreach

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-multicast]

    Notes

        The multicast service matches all packets sent to the $MULTICAST_IPS addresses using IGMP or UDP. For IPv4 that means 224.0.0.0/4 and for IPv6 FF00::/16. [WIKI-multicast]: http://en.wikipedia.org/wiki/Multicast

  service: mysql

MySQL
    Example:

          server mysql accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3306

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.mysql.com/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Mysql)

  service: netbackup

Veritas NetBackup service
    Example:

          server netbackup accept
          client netbackup accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/13701 tcp/13711 tcp/13720 tcp/13721 tcp/13724 tcp/13782 tcp/13783

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-netbackup]

    Notes

        To use this service you must define it as both client and server in NetBackup clients and NetBackup servers. [WIKI-netbackup]: http://en.wikipedia.org/wiki/Netbackup

  service: netbios_dgm

NETBIOS Datagram Distribution Service
    Example:

          server netbios_dgm accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/138

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-netbios_dgm]

    Notes

        See also the samba.

        Keep in mind that this service broadcasts (to the broadcast address of your LAN) UDP packets. If you place this service within an interface that has a dst parameter, remember to include (in the dst parameter) the broadcast address of your LAN too. [WIKI-netbios_dgm]: http://en.wikipedia.org/wiki/Netbios#Datagram_distribution_service

  service: netbios_ns

NETBIOS Name Service
    Example:

          server netbios_ns accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/137

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-netbios_ns]

    Notes

        See also the samba. [WIKI-netbios_ns]: http://en.wikipedia.org/wiki/Netbios#Name_service

  service: netbios_ssn

NETBIOS Session Service
    Example:

          server netbios_ssn accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/139

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-netbios_ssn]

    Notes

        See also the samba.

        Please keep in mind that newer NETBIOS clients prefer to use port 445 (microsoft_ds) for the NETBIOS session service, and when this is not available they fall back to port 139 (netbios_ssn). Versions of samba above 3.x bind automatically to ports 139 and 445.

        If you have an older samba version and your policy on an interface or router is DROP, clients trying to access port 445 will have to timeout before falling back to port 139. This timeout can be up to several minutes.

        To overcome this problem you can explicitly REJECT the microsoft_ds with a tcp-reset message:

        server microsoft_ds reject with tcp-reset [WIKI-netbios_ssn]: http://en.wikipedia.org/wiki/Netbios#Session_service

  service: nfs

Network File System
    Example:

          client nfs accept dst 192.0.2.1

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   N/A

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Network_File_System_%28protocol%29)

    Notes

        The NFS service queries the RPC service on the NFS server host to find out the ports nfsd, mountd, lockd and rquotad are listening. Then, according to these ports it sets up rules on all the supported protocols (as reported by RPC) in order the clients to be able to reach the server.

        For this reason, the NFS service requires that:

        •   the firewall is restarted if the NFS server is restarted

        •   the NFS server must be specified on all nfs statements (only if it is not the localhost)

        Since NFS queries the remote RPC server, it is required to also be allowed to do so, by allowing the portmap too. Take care that this is allowed by the running firewall when FireHOL tries to query the RPC server. So you might have to setup NFS in two steps: First add the portmap service and activate the firewall, then add the NFS service and restart the firewall.

        To avoid this you can setup your NFS server to listen on pre-defined ports, as documented in NFS Howto (http://nfs.sourceforge.net/nfs-howto/ar01s06.html#nfs_firewalls). If you do this then you will have to define the the ports using the procedure described in Adding Services in firehol.conf(5).

  service: nis

Network Information Service
    Example:

          client nis accept dst 192.0.2.1

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-nis]

    Notes

        The nis service queries the RPC service on the nis server host to find out the ports ypserv and yppasswdd are listening. Then, according to these ports it sets up rules on all the supported protocols (as reported by RPC) in order the clients to be able to reach the server.

        For this reason, the nis service requires that:

        •   the firewall is restarted if the nis server is restarted

        •   the nis server must be specified on all nis statements (only if it is not the localhost)

        Since nis queries the remote RPC server, it is required to also be allowed to do so, by allowing the portmap too. Take care that this is allowed by the running firewall when FireHOL tries to query the RPC server. So you might have to setup nis in two steps: First add the portmap service and activate the firewall, then add the nis service and restart the firewall.

        This service was added to FireHOL by Carlos Rodrigues (http://sourceforge.net/p/firehol/feature-requests/20/). His comments regarding this implementation, are:

        These rules work for client access only!

        Pushing changes to slave servers won’t work if these rules are active somewhere between the master and its slaves, because it is impossible to predict the ports where yppush will be listening on each push.

        Pulling changes directly on the slaves will work, and could be improved performance-wise if these rules are modified to open fypxfrd. This wasn’t done because it doesn’t make that much sense since pushing changes on the master server is the most common, and recommended, way to replicate maps. [WIKI-nis]: http://en.wikipedia.org/wiki/Network_Information_Service

  service: nntp

Network News Transfer Protocol
    Example:

          server nntp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/119

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Nntp)

  service: nntps

Secure Network News Transfer Protocol
    Example:

          server nntps accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/563

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Nntp)

  service: nrpe

Nagios NRPE
    Service Type:

    •   simple

    Server Ports:

    •   tcp/5666

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Nagios#NRPE)

  service: ntp

Network Time Protocol
    Example:

          server ntp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/123 tcp/123

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Network_Time_Protocol)

  service: nut

Network UPS Tools
    Example:

          server nut accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3493 udp/3493

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.networkupstools.org/)

  service: nxserver

NoMachine NX Server
    Example:

          server nxserver accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5000:5200

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-nxserver]

    Notes

        Default ports used by NX server for connections without encryption.

        Note that nxserver also needs the ssh to be enabled.

        This information has been extracted from this The TCP ports used by nxserver are 4000 + DISPLAY_BASE to 4000 + DISPLAY_BASE + DISPLAY_LIMIT. DISPLAY_BASE and DISPLAY_LIMIT are set in /usr/NX/etc/node.conf and the defaults are DISPLAY_BASE=1000 and DISPLAY_LIMIT=200.

        For encrypted nxserver sessions, only ssh is needed. [WIKI-nxserver]: http://en.wikipedia.org/wiki/NX_Server

  service: openvpn

OpenVPN
    Service Type:

    •   simple

    Server Ports:

    •   tcp/1194 udp/1194

    Client Ports:

    •   default

    Links

    •   Homepage (http://openvpn.net/)

    •   Wikipedia (http://en.wikipedia.org/wiki/OpenVPN)

  service: oracle

Oracle Database
    Example:

          server oracle accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1521

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Oracle_db)

  service: OSPF

Open Shortest Path First
    Example:

          server OSPF accept

    Service Type:

    •   simple

    Server Ports:

    •   89/any

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Ospf)

  service: ping

Ping (ICMP echo)
    Example:

          server ping accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-ping]

    Notes

        This services matches requests of protocol ICMP and type echo-request (TYPE=8) and their replies of type echo-reply (TYPE=0).

        The ping service is stateful. [WIKI-ping]: http://en.wikipedia.org/wiki/Ping

  service: pop3

Post Office Protocol
    Example:

          server pop3 accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/110

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Pop3)

  service: pop3s

Secure Post Office Protocol
    Example:

          server pop3s accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/995

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Pop3)

  service: portmap

Open Network Computing Remote Procedure Call - Port Mapper
    Example:

          server portmap accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/111 tcp/111

    Client Ports:

    •   any

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Portmap)

  service: postgres

PostgreSQL
    Example:

          server postgres accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5432

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Postgres)

  service: pptp

Point-to-Point Tunneling Protocol
    Example:

          server pptp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1723

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_pptp CONFIG_NF_CONNTRACK_PPTP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_PPTP.html)

    •   nf_conntrack_proto_gre CONFIG_NF_CT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_CT_PROTO_GRE.html)

    Netfilter NAT Modules

    •   nf_nat_pptp CONFIG_NF_NAT_PPTP (http://cateee.net/lkddb/web-lkddb/NF_NAT_PPTP.html)

    •   nf_nat_proto_gre CONFIG_NF_NAT_PROTO_GRE (http://cateee.net/lkddb/web-lkddb/NF_NAT_PROTO_GRE.html)

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Pptp)

  service: privoxy

Privacy Proxy
    Example:

          server privoxy accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/8118

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.privoxy.org/)

  service: radius

Remote Authentication Dial In User Service (RADIUS)
    Example:

          server radius accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1812 udp/1813

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/RADIUS)

  service: radiusold

Remote Authentication Dial In User Service (RADIUS)
    Example:

          server radiusold accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1645 udp/1646

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/RADIUS)

  service: radiusoldproxy

Remote Authentication Dial In User Service (RADIUS)
    Example:

          server radiusoldproxy accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1647

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/RADIUS)

  service: radiusproxy

Remote Authentication Dial In User Service (RADIUS)
    Example:

          server radiusproxy accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1814

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/RADIUS)

  service: rdp

Remote Desktop Protocol
    Example:

          server rdp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3389

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-rdp]

    Notes

        Remote Desktop Protocol is also known also as Terminal Services. [WIKI-rdp]: http://en.wikipedia.org/wiki/Remote_Desktop_Protocol

  service: rndc

Remote Name Daemon Control
    Example:

          server rndc accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/953

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Rndc)

  service: rsync

rsync protocol
    Example:

          server rsync accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/873 udp/873

    Client Ports:

    •   default

    Links

    •   Homepage (http://rsync.samba.org/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Rsync)

  service: rtp

Real-time Transport Protocol
    Example:

          server rtp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/10000:20000

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-rtp]

    Notes

        RTP ports are generally all the UDP ports. This definition narrows down RTP ports to UDP 10000 to 20000. [WIKI-rtp]: http://en.wikipedia.org/wiki/Real-time_Transport_Protocol

  service: samba

Samba
    Example:

          server samba accept

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-samba]

    •   [Wikipedia][WIKI-samba]

    Notes

        The samba service automatically sets all the rules for netbios_ns, netbios_dgm, netbios_ssn and microsoft_ds.

        Please refer to the notes of the above services for more information.

        NETBIOS initiates based on the broadcast address of an interface (request goes to broadcast address) but the server responds from its own IP address. This makes the “server samba accept” statement drop the server reply, because of the way the iptables connection tracker works.

        This service definition includes a hack, that allows a Linux samba server to respond correctly in such situations, by allowing new outgoing connections from the well known netbios_ns port to the clients high ports.

        However, for clients and routers this hack is not applied because it would open all unprivileged ports to the samba server. The only solution to overcome the problem in such cases (routers or clients) is to build a trust relationship between the samba servers and clients. [HOME-samba]: http://www.samba.org/ [WIKI-samba]: http://en.wikipedia.org/wiki/Samba_(software)

  service: sane

SANE Scanner service
    Service Type:

    •   simple

    Server Ports:

    •   tcp/6566

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_sane CONFIG_NF_CONNTRACK_SANE (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_SANE.html)

    Netfilter NAT Modules

    •   N/A

    Links

    •   Homepage (http://www.sane-project.org/)

  service: sip

Session Initiation Protocol
    Example:

          server sip accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5060 udp/5060

    Client Ports:

    •   5060 default

    Netfilter Modules

    •   nf_conntrack_sip CONFIG_NF_CONNTRACK_SIP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_SIP.html)

    Netfilter NAT Modules

    •   nf_nat_sip CONFIG_NF_NAT_SIP (http://cateee.net/lkddb/web-lkddb/NF_NAT_SIP.html)

    Links

    •   [Wikipedia][WIKI-sip]

    Notes

        SIP (http://www.voip-info.org/wiki/view/SIP) is an IETF standard protocol (RFC 2543) for initiating interactive user sessions involving multimedia elements such as video, voice, chat, gaming, etc. SIP works in the application layer of the OSI communications model. [WIKI-sip]: http://en.wikipedia.org/wiki/Session_Initiation_Protocol

  service: smtp

Simple Mail Transport Protocol
    Example:

          server smtp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/25

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol)

  service: smtps

Secure Simple Mail Transport Protocol
    Example:

          server smtps accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/465

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/SMTPS)

  service: snmp

Simple Network Management Protocol
    Example:

          server snmp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/161

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Simple_Network_Management_Protocol)

  service: snmptrap

SNMP Trap
    Example:

          server snmptrap accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/162

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-snmptrap]

    Notes

        An SNMP trap is a notification from an agent to a manager. [WIKI-snmptrap]: http://en.wikipedia.org/wiki/Simple_Network_Management_Protocol#Trap

  service: socks

SOCKet Secure
    Example:

          server socks accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/1080 udp/1080

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-socks]

    Notes

        See also RFC 1928 (http://www.ietf.org/rfc/rfc1928.txt). [WIKI-socks]: http://en.wikipedia.org/wiki/SOCKS

  service: squid

Squid Web Cache
    Example:

          server squid accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/3128

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.squid-cache.org/)

    •   Wikipedia (http://en.wikipedia.org/wiki/Squid_(software))

  service: ssh

Secure Shell Protocol
    Example:

          server ssh accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/22

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Secure_Shell)

  service: stun

Session Traversal Utilities for NAT
    Example:

          server stun accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/3478 udp/3479

    Client Ports:

    •   any

    Links

    •   [Wikipedia][WIKI-stun]

    Notes

        STUN (http://www.voip-info.org/wiki/view/STUN) is a protocol for assisting devices behind a NAT firewall or router with their packet routing. [WIKI-stun]: http://en.wikipedia.org/wiki/STUN

  service: submission

SMTP over SSL/TLS submission
    Example:

          server submission accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/587

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-submission]

    Notes

        Submission is essentially normal SMTP with an SSL/TLS negotiation. [WIKI-submission]: http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

  service: sunrpc

Open Network Computing Remote Procedure Call - Port Mapper
    Alias for portmap

  service: swat

Samba Web Administration Tool
    Example:

          server swat accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/901

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/SWAT.html)

  service: syslog

Syslog Remote Logging Protocol
    Example:

          server syslog accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/514

    Client Ports:

    •   514 default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Syslog)

  service: telnet

Telnet
    Example:

          server telnet accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/23

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Telnet)

  service: tftp

Trivial File Transfer Protocol
    Example:

          server tftp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/69

    Client Ports:

    •   default

    Netfilter Modules

    •   nf_conntrack_tftp CONFIG_NF_CONNTRACK_TFTP (http://cateee.net/lkddb/web-lkddb/NF_CONNTRACK_TFTP.html)

    Netfilter NAT Modules

    •   nf_nat_tftp CONFIG_NF_NAT_TFTP (http://cateee.net/lkddb/web-lkddb/NF_NAT_TFTP.html)

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol)

  service: time

Time Protocol
    Example:

          server time accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/37 udp/37

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Time_Protocol)

  service: timestamp

ICMP Timestamp
    Example:

          server timestamp accept

    Service Type:

    •   complex

    Server Ports:

    •   N/A

    Client Ports:

    •   N/A

    Links

    •   [Wikipedia][WIKI-timestamp]

    Notes

        This services matches requests of protocol ICMP and type timestamp-request (TYPE=13) and their replies of type timestamp-reply (TYPE=14).

        The timestamp service is stateful. [WIKI-timestamp]: http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol#Timestamp

  service: tomcat

HTTP alternate port
    Alias for httpalt

  service: upnp

Universal Plug and Play
    Example:

          server upnp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/1900 tcp/2869

    Client Ports:

    •   default

    Links

    •   [Homepage][HOME-upnp]

    •   [Wikipedia][WIKI-upnp]

    Notes

        For a Linux implementation see: Linux IGD (http://linux-igd.sourceforge.net/). [HOME-upnp]: http://upnp.sourceforge.net/ [WIKI-upnp]: http://en.wikipedia.org/wiki/Universal_Plug_and_Play

  service: uucp

Unix-to-Unix Copy
    Example:

          server uucp accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/540

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/UUCP)

  service: vmware

vmware
    Example:

          server vmware accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/902

    Client Ports:

    •   default

    Notes

        Used from VMWare 1 and up. See the VMWare KnowledgeBase (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1012382).

  service: vmwareauth

vmwareauth
    Example:

          server vmwareauth accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/903

    Client Ports:

    •   default

    Notes

        Used from VMWare 1 and up. See the VMWare KnowledgeBase (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1012382).

  service: vmwareweb

vmwareweb
    Example:

          server vmwareweb accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/8222 tcp/8333

    Client Ports:

    •   default

    Notes

        Used from VMWare 2 and up. See VMWare Server 2.0 release notes (http://www.vmware.com/support/server2/doc/releasenotes_vmserver2.html) and the VMWare KnowledgeBase (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1012382).

  service: vnc

Virtual Network Computing
    Example:

          server vnc accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/5900:5903

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-vnc]

    Notes

        VNC is a graphical desktop sharing protocol. [WIKI-vnc]: http://en.wikipedia.org/wiki/Virtual_Network_Computing

  service: webcache

HTTP alternate port
    Alias for httpalt

  service: webmin

Webmin Administration System
    Example:

          server webmin accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/10000

    Client Ports:

    •   default

    Links

    •   Homepage (http://www.webmin.com/)

  service: whois

WHOIS Protocol
    Example:

          server whois accept

    Service Type:

    •   simple

    Server Ports:

    •   tcp/43

    Client Ports:

    •   default

    Links

    •   Wikipedia (http://en.wikipedia.org/wiki/Whois)

  service: xbox

Xbox Live
    Example:

          client xbox accept

    Service Type:

    •   complex

    Server Ports:

    •   many

    Client Ports:

    •   default

    Notes

        Definition for the Xbox live service.

        See program source for contributor details.

  service: xdmcp

X Display Manager Control Protocol
    Example:

          server xdmcp accept

    Service Type:

    •   simple

    Server Ports:

    •   udp/177

    Client Ports:

    •   default

    Links

    •   [Wikipedia][WIKI-xdmcp]

    Notes

        See Gnome Display Manager (http://www.jirka.org/gdm-documentation/x70.html) for a discussion about XDMCP and firewalls (Gnome Display Manager is a replacement for XDM). [WIKI-xdmcp]: http://en.wikipedia.org/wiki/X_display_manager_(program_type)#X_Display_Manager_Control_Protocol

AUTHORS
FireHOL Team.