2003-12-26 16:52:12 +01:00
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<article>
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<articleinfo>
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<title>Ports Required for Various Services/Applications</title>
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<authorgroup>
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<author>
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<firstname>Tom</firstname>
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<surname>Eastep</surname>
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</author>
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</authorgroup>
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2004-01-04 00:03:36 +01:00
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<pubdate>2004-01-03</pubdate>
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2003-12-26 16:52:12 +01:00
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<copyright>
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<year>2001-2002</year>
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2004-01-04 00:03:36 +01:00
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<year>2004</year>
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2003-12-26 16:52:12 +01:00
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<holder>Thomas M. Eastep</holder>
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</copyright>
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<legalnotice>
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<para>Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version
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1.2 or any later version published by the Free Software Foundation; with
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no Invariant Sections, with no Front-Cover, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled
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<quote><ulink url="GnuCopyright.htm">GNU Free Documentation License</ulink></quote>.</para>
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</legalnotice>
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<abstract>
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<para>In addition to those applications described in the
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/etc/shorewall/rules documentation, here are some other
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services/applications that you may need to configure your firewall to
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accommodate.</para>
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</abstract>
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</articleinfo>
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2004-01-04 00:03:36 +01:00
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<note>
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<para>In the rules that are shown in this document, the ACTION is shown as
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ACCEPT. You may need to use DNAT (see <ulink url="FAQ.htm#faq30">FAQ 30</ulink>)
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or you may want DROP or REJECT if you are trying to block the application.</para>
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</note>
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2003-12-26 16:52:12 +01:00
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<section>
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<title>NTP (Network Time Protocol)</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> udp 123</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>rdate</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 37</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Usenet (NNTP)</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 119</programlisting>
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2003-12-26 16:52:12 +01:00
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<para>TCP Port 119</para>
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</section>
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<section>
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<title>DNS</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> udp 53
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 53</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>ICQ</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> udp 4000
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 53</programlisting>
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2003-12-26 16:52:12 +01:00
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<para>UDP Port 4000. You will also need to open a range of TCP ports which
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you can specify to your ICQ client. By default, clients use 4000-4100.</para>
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</section>
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<section>
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<title>PPTP</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> 47
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 1723</programlisting>
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<para>Lots more information <ulink url="PPTP.htm">here</ulink> and <ulink
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url="VPN.htm">here</ulink>.</para>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>IPSEC</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis> <destination></emphasis> 50
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ACCEPT <emphasis><source></emphasis> <emphasis> <destination></emphasis> 51
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ACCEPT <emphasis><source></emphasis> <emphasis> <destination></emphasis> udp 500
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ACCEPT <emphasis><destination></emphasis> <emphasis><source></emphasis> 50
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ACCEPT <emphasis><destination></emphasis> <emphasis><source></emphasis> 51
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ACCEPT <emphasis><destination></emphasis> <emphasis><source></emphasis> udp 500</programlisting>
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<para>Lots more information <ulink url="IPSEC.htm">here</ulink> and <ulink
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url="VPN.htm">here</ulink>.</para>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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2004-01-04 00:03:36 +01:00
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<title>SMTP</title>
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2003-12-26 16:52:12 +01:00
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 25</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Pop3</title>
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<para>TCP Port 110 (Secure Pop3 is TCP Port 995)</para>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 110 #Unsecure Pop3
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 995 #Secure Pop3</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>IMAP</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 143 #Unsecure IMAP
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 993 #Secure IMAP</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Telnet</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 23</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>SSH</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 22</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Auth (identd)</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 113</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Web Access</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 80 #Insecure HTTP
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 443 #Secure HTTP</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>FTP</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 21</programlisting>
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<para>Look <ulink url="FTP.html">here</ulink> for much more information.</para>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>SMB/NMB (Samba/Windows Browsing/File Sharing)</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis> <destination></emphasis> tcp 137,139,445
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ACCEPT <emphasis><source></emphasis> <emphasis> <destination></emphasis> udp 137:139
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ACCEPT <emphasis><destination></emphasis> <emphasis><source></emphasis> tcp 137,139,445
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ACCEPT <emphasis><destination></emphasis> <emphasis><source></emphasis> udp 137:139</programlisting>
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2003-12-26 16:52:12 +01:00
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<para>Also, see <ulink url="samba.htm">this page</ulink>.</para>
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</section>
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<section>
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<title>Traceroute</title>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> udp 33434:33443 #Good for 10 hops
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> icmp 8</programlisting>
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2003-12-26 16:52:12 +01:00
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2004-01-04 00:03:36 +01:00
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<para>UDP traceroute uses ports 33434 through 33434+<max number of
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hops>-1</para>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>NFS</title>
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<para>I personally use the following rules for opening access from zone z1
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to a server with IP address a.b.c.d in zone z2:</para>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><z1></emphasis> <emphasis> <z2></emphasis>:a.b.c.d tcp 111
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ACCEPT <emphasis><z1></emphasis> <emphasis> <z2></emphasis>:a.b.c.d udp 111
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ACCEPT <emphasis><z1></emphasis> <emphasis> <z2></emphasis>:a.b.c.d udp 2049
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ACCEPT <emphasis><z1></emphasis> <emphasis> <z2></emphasis>:a.b.c.d udp 32700:</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>VNC</title>
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2003-12-26 19:13:03 +01:00
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<para>TCP port 5900 + <display number>.</para>
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2004-01-04 00:03:36 +01:00
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<programlisting>#ACTION SOURCE DESTINATION PROTO DEST PORT(S)
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 5901 #Display Number 1
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ACCEPT <emphasis><source></emphasis> <emphasis><destination></emphasis> tcp 5902 #Display Number 2
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...</programlisting>
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2003-12-26 16:52:12 +01:00
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</section>
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<section>
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<title>Other Source of Port Information</title>
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<para>Didn't find what you are looking for -- have you looked in your
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own /etc/services file?</para>
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<para>Still looking? Try <ulink
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url="http://www.networkice.com/advice/Exploits/Ports">http://www.networkice.com/advice/Exploits/Ports</ulink></para>
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</section>
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2004-01-04 00:03:36 +01:00
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<appendix>
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<title>Revision History</title>
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<para><revhistory><revision><revnumber>1.2</revnumber><date>2004-01-03</date><authorinitials>TE</authorinitials><revremark>Add
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rules file entries.</revremark></revision><revision><revnumber>1.1</revnumber><date>2002-07-30</date><authorinitials>TE</authorinitials><revremark>Initial
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version converted to Docbook XML</revremark></revision></revhistory></para>
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</appendix>
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2003-12-26 16:52:12 +01:00
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</article>
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