diff options
| author | Tom Gundersen <teg@jklm.no> | 2013-01-03 09:32:32 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2013-01-03 09:48:03 +0100 |
| commit | 8e6640f0fe9eebde5a6cc9f1c0a20a289b8ad9c8 (patch) | |
| tree | fb76d27619f2a25f3129606a0d1b1fbf5eb81407 /src/nss-myhostname/doc/README.html.in | |
| parent | 1df2a0fce427fab7754f6ac572cf68cef2e95696 (diff) | |
nss-myhostname: move to subdirectory
In order to merge into the systemd repos.
Diffstat (limited to 'src/nss-myhostname/doc/README.html.in')
| -rw-r--r-- | src/nss-myhostname/doc/README.html.in | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/src/nss-myhostname/doc/README.html.in b/src/nss-myhostname/doc/README.html.in new file mode 100644 index 0000000000..f78618298c --- /dev/null +++ b/src/nss-myhostname/doc/README.html.in @@ -0,0 +1,166 @@ +<?xml version="1.0" encoding="iso-8859-1"?> <!-- -*-html-helper-*- --> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> + +<head> +<title>nss-myhostname @PACKAGE_VERSION@</title> +<link rel="stylesheet" type="text/css" href="style.css" /> +</head> + +<body> +<h1><a name="top">nss-myhostname @PACKAGE_VERSION@</a></h1> + +<p><i>Copyright 2005-2011 Lennart Poettering <@PACKAGE_BUGREPORT@></i></p> + +<ul class="toc"> + <li><a href="#license">License</a></li> + <li><a href="#news">News</a></li> + <li><a href="#overview">Overview</a></li> + <li><a href="#status">Current Status</a></li> + <li><a href="#documentation">Documentation</a></li> + <li><a href="#requirements">Requirements</a></li> + <li><a href="#installation">Installation</a></li> + <li><a href="#acks">Acknowledgements</a></li> + <li><a href="#download">Download</a></li> +</ul> + +<h2><a name="license">License</a></h2> + +<p>This program is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public License as +published by the Free Software Foundation, either version 2.1 of the +License, or (at your option) any later version.</p> + +<p>This program is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details.</p> + +<h2><a name="news">News</a></h2> + +<div class="news-date">Mon May 9 2011: </div> + +<p class="news-text"><a href="@PACKAGE_URL@nss-myhostname-0.3.tar.gz">Version +0.3</a> released. Changes include: Always return locally configured IP +addresses first, use 127.0.0.2/::1 only as fallback if no addresses +are configured.</p> + +<div class="news-date">Mon Oct 27 2008: </div> + +<p class="news-text"><a +href="@PACKAGE_URL@nss-myhostname-0.2.tar.gz">Version 0.2</a> +released. Changes include: Update for IPv6 and newest glibc NSS interfaces</p> + +<div class="news-date">Sat Nov 19 2005: </div> + +<p class="news-text"><a +href="@PACKAGE_URL@nss-myhostname-0.1.tar.gz">Version 0.1</a> +released. Initial release.</p> + +<h2><a name="overview">Overview</a></h2> + +<p><tt>nss-myhostname</tt> is a plugin for the GNU Name Service Switch +(NSS) functionality of the GNU C Library (<tt>glibc</tt>) providing +host name resolution for the locally configured system hostname as +returned by <tt>gethostname(2)</tt>. Various software relies on an +always resolvable local host name. When using dynamic hostnames this +is usually achieved by patching <tt>/etc/hosts</tt> at the same time +as changing the host name. This however is not ideal since it requires +a writable <tt>/etc</tt> file system and is fragile because the file +might be edited by the administrator at the same +time. <tt>nss-myhostname</tt> simply returns all locally configure +public IP addresses, or -- if none are configured -- the IPv4 +address <tt>127.0.0.2</tt> (wich is on the local loopback) and the +IPv6 address <tt>::1</tt> (which is the local host) for whatever +system hostname is configured locally. Patching <tt>/etc/hosts</tt> +is thus no longer necessary.</p> + +<h2><a name="status">Current Status</a></h2> + +<p>It works!</p> + +<h2><a name="documentation">Documentation</a></h2> + +<p>After compiling and installing <tt>nss-myhostname</tt> you'll find a +new NSS modules in <tt>/lib</tt>:</p> +<ul> +<li><tt>libnss_myhostname.so.2</tt></li> +</ul> + +<p>To activate the NSS modules you have to edit +<tt>/etc/nsswitch.conf</tt> and add <tt>myhostname</tt> to the +line starting with "<tt>hosts:</tt>". On Debian this looks like +this:</p> + +<pre># /etc/nsswitch.conf + +passwd: compat +group: compat +shadow: compat + +hosts: files dns <b>myhostname</b> +networks: files + +protocols: db files +services: db files +ethers: db files +rpc: db files + +netgroup: nis</pre> + +<p>That's it. You should now always be able to resolve your local +system hostname. For a quick check +use <tt>glibc</tt>'s <tt>getent</tt> tool: + +<pre>$ getent ahosts `hostname` +::1 STREAM omega +::1 DGRAM +::1 RAW +127.0.0.2 STREAM +127.0.0.2 DGRAM +127.0.0.2 RAW +</pre> + +<p>In this case the local host name is <i>omega</i>.</p> + +<p>It is recommended to put <tt>myhostname</tt> last in +the <tt>nsswitch.conf</tt> line to make sure that this mapping is only +used as fallback, and any DNS or <tt>/etc/hosts</tt> based mapping takes +precedence.</p> + +<h2><a name="requirements">Requirements</a></h2> + +<p><tt>nss-myhostname</tt> uses NSS interfaces that are specific to modern <tt>glibc</tt>'s.</p> + +<p><tt>nss-myhostname</tt> was developed and tested on Fedora 15 from +May 2011, it should work on most other Linux distributions since it +uses GNU autoconf and GNU libtool for source code configuration and +shared library management.</p> + +<h2><a name="installation">Installation</a></h2> + +<p>As this package is made with the GNU autotools you should run +<tt>./configure</tt> inside the distribution directory for configuring +the source tree. After that you should run <tt>make</tt> for +compilation and <tt>make install</tt> (as root) for installation of +<tt>nss-myhostname</tt>.</p> + +<h2><a name="acks">Acknowledgements</a></h2> + +<p>None so far.</p> + +<h2><a name="download">Download</a></h2> + +<p>The newest release is always available from <a href="@PACKAGE_URL@">@PACKAGE_URL@</a></p> + +<p>The current release is <a href="@PACKAGE_URL@nss-myhostname-@PACKAGE_VERSION@.tar.gz">@PACKAGE_VERSION@</a></p> + +<p>Get <tt>nss-myhostname</tt>'s development sources from the <a href="http://git.or.cz/">GIT</a> <a href="git://git.0pointer.de/nss-myhostname">repository</a> (<a href="http://git.0pointer.de/?p=nss-myhostname.git">gitweb</a>): </p> + +<pre>git clone git://git.0pointer.de/nss-myhostname</pre> + +<hr/> +<address class="grey">Lennart Poettering <@PACKAGE_BUGREPORT@>, May 2011</address> + +</body> +</html> |