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Last change
on this file since dbed00df was dbed00df, checked in by Larry Lawrence <larry@…>, 20 years ago |
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portmap and tcpwrappers intro update
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@1172 af4574ff-66df-0310-9fd7-8a98e5e911e0
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| 1 | <sect2>
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| 2 | <title>Contents</title>
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| 3 |
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| 4 | <para>The <application>tcpwrappers</application> package contains <command>
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| 5 | tcpd</command>, <command>tcpdchk</command>, <command>tcpdmatch</command>,
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| 6 | <command>try-from</command> and <command>safe_finger</command>.</para>
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| 7 | </sect2>
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| 8 |
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| 9 | <sect2><title>Description</title>
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| 10 |
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| 11 | <sect3><title>tcpd</title>
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| 12 | <para><command>tcpd</command> is the main access control daemon for all
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| 13 | internet services, which <command>inetd</command> or
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| 14 | <command>xinetd</command> will run instead of running the
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| 15 | requested service daemon.</para></sect3>
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| 16 |
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| 17 | <sect3><title>tcpdchk</title>
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| 18 | <para><command>tcpdchk</command> is a tool to examine a tcpd wrapper
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| 19 | configuration and report problems with it.</para></sect3>
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| 20 |
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| 21 | <sect3><title>tcpdmatch</title>
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| 22 | <para><command>tcpdmatch</command> is used to predict how the tcp wrapper
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| 23 | would handle a specific request for a service.</para></sect3>
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| 24 |
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| 25 | <sect3><title>try-from</title>
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| 26 | <para><command>try-from</command> can be called via a remote shell command to
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| 27 | find out if the host name and address are properly recognized.</para></sect3>
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| 28 |
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| 29 | <sect3><title>safe_finger</title>
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| 30 | <para><command>safe_finger</command> is a wrapper for the <command>finger
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| 31 | </command> utility, to provide automatic reverse name lookups.</para></sect3>
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| 32 |
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| 33 | </sect2>
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| 34 |
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