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diff --git a/chapter06/shadowpwd-inst.xml b/chapter06/shadowpwd-inst.xml deleted file mode 100644 index 2632f7732..000000000 --- a/chapter06/shadowpwd-inst.xml +++ /dev/null @@ -1,105 +0,0 @@ -<sect2><title> </title><para> </para></sect2> - -<sect2> -<title>Installation of Shadow</title> - -<para>The <userinput>login</userinput>, <userinput>getty</userinput> and -<userinput>init</userinput> programs (and some others) maintain a number -of logfiles to record who are and who were logged in to the system. These -programs, however, don't create these logfiles when they don't exist, so if -you want this logging to occur you will have to create the files yourself. -The Shadow package needs to detect these files in their proper place, so we -create them now, with their proper permissions:</para> - -<screen><userinput>touch /var/run/utmp /var/log/{btmp,lastlog,wtmp} -chmod 644 /var/run/utmp /var/log/{btmp,lastlog,wtmp}</userinput></screen> - -<para>The <filename>/var/run/utmp</filename> file lists the users that are -currently logged in, the <filename>/var/log/wtmp</filename> file who -<emphasis>were</emphasis> logged in and when. -The <filename>/var/log/lastlog</filename> file shows for each user when he -or she last logged in, and the <filename>/var/log/btmp</filename> lists the -bad login attempts.</para> - -<para>Shadow hard-wires the path to the <userinput>passwd</userinput> binary -within the binary itself, but does this the wrong way. If a -<userinput>passwd</userinput> binary is not present before installing Shadow, -the package incorrectly assumes it is going to be located at -<filename>/bin/passwd</filename>, but then installs it in -<filename>/usr/bin/passwd</filename>. This will lead to errors about not finding -<filename>/bin/passwd</filename>. To work around this bug, create a dummy -<filename>passwd</filename> file, so that it gets hard-wired properly:</para> - -<screen><userinput>touch /usr/bin/passwd</userinput></screen> - -<para>The current Shadow suite has a problem that causes the -<userinput>newgrp</userinput> command to fail. The following patch (also -appearing in Shadow's CVS code) fixes this problem:</para> - -<screen><userinput>patch -Np1 -i ../&shadow-patch;</userinput></screen> - -<para>Now prepare Shadow for compilation:</para> - -<screen><userinput>./configure --prefix=/usr --libdir=/usr/lib --enable-shared</userinput></screen> - -<para>Compile the package:</para> - -<screen><userinput>make</userinput></screen> - -<para>And install it:</para> - -<screen><userinput>make install</userinput></screen> - -<para>Shadow uses two files to configure authentication settings for the -system. Install these two config files:</para> - -<screen><userinput>cp etc/{limits,login.access} /etc</userinput></screen> - -<para>We want to change the password method to enable MD5 passwords which are -theoretically more secure than the default "crypt" method and also allow -password lengths greater than 8 characters. We also need to change the old -<filename class="directory">/var/spool/mail</filename> location for user -mailboxes to the current location at -<filename class="directory">/var/mail</filename>. We do this by changing the -relevant configuration file while copying it to its destination:</para> - -<screen><userinput>sed -e 's%/var/spool/mail%/var/mail%' \ - -e 's%#MD5_CRYPT_ENAB.no%MD5_CRYPT_ENAB yes%' \ - etc/login.defs.linux > /etc/login.defs</userinput></screen> - -<note><para>Be extra careful when typing all of the above. It is probably safer -to cut-and-paste it rather than try and type it all in.</para></note> - -<para>According to the man page of <userinput>vipw</userinput>, a -<userinput>vigr</userinput> program should exist too. Since the installation -procedure doesn't create this program, create a symlink manually:</para> - -<screen><userinput>ln -s vipw /usr/sbin/vigr</userinput></screen> - -<para>As the <filename>/bin/vipw</filename> symlink is redundant (and even -pointing to a non-existent file), remove it:</para> - -<screen><userinput>rm /bin/vipw</userinput></screen> - -<para>Now move the <userinput>sg</userinput> program to its proper place:</para> - -<screen><userinput>mv /bin/sg /usr/bin</userinput></screen> - -<para>And move Shadow's dynamic libraries to a more appropriate location:</para> - -<screen><userinput>mv /usr/lib/lib{shadow,misc}.so.0* /lib</userinput></screen> - -<para>As some packages expect to find the just-moved libraries in -<filename>/usr/lib</filename>, create the following symlinks:</para> - -<screen><userinput>ln -sf ../../lib/libshadow.so.0 /usr/lib/libshadow.so -ln -sf ../../lib/libmisc.so.0 /usr/lib/libmisc.so</userinput></screen> - -<para>Coreutils has already installed a <userinput>groups</userinput> program -in <filename>/usr/bin</filename>. If you wish, you can remove the one -installed by Shadow:</para> - -<screen><userinput>rm /bin/groups</userinput></screen> - -</sect2> - |