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Diffstat (limited to 'Linux-PAM/modules/pam_limits/limits.conf.5.xml')
| -rw-r--r-- | Linux-PAM/modules/pam_limits/limits.conf.5.xml | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/Linux-PAM/modules/pam_limits/limits.conf.5.xml b/Linux-PAM/modules/pam_limits/limits.conf.5.xml new file mode 100644 index 00000000..fb1fad27 --- /dev/null +++ b/Linux-PAM/modules/pam_limits/limits.conf.5.xml @@ -0,0 +1,287 @@ +<?xml version="1.0" encoding='UTF-8'?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" + "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"> + +<refentry id="limits.conf"> + + <refmeta> + <refentrytitle>limits.conf</refentrytitle> + <manvolnum>5</manvolnum> + <refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo> + </refmeta> + + <refnamediv> + <refname>limits.conf</refname> + <refpurpose>configuration file for the pam_limits module</refpurpose> + </refnamediv> + + <refsect1 id='limits.conf-description'> + <title>DESCRIPTION</title> + <para> + The syntax of the lines is as follows: + </para> + <para> + <replaceable><domain></replaceable> <replaceable><type></replaceable> + <replaceable><item></replaceable> <replaceable><value></replaceable> + </para> + <para> + The fields listed above should be filled as follows: + </para> + <variablelist> + <varlistentry> + <term> + <option><domain></option> + </term> + <listitem> + <itemizedlist> + <listitem> + <para> + a username + </para> + </listitem> + <listitem> + <para> + a groupname, with <emphasis remap='B'>@group</emphasis> syntax. + This should not be confused with netgroups. + </para> + </listitem> + <listitem> + <para> + the wildcard <emphasis remap='B'>*</emphasis>, for default entry. + </para> + </listitem> + <listitem> + <para> + the wildcard <emphasis remap='B'>%</emphasis>, for maxlogins limit only, + can also be used with <emphasis remap='b'>%group</emphasis> syntax. + </para> + </listitem> + </itemizedlist> + </listitem> + </varlistentry> + + <varlistentry> + <term> + <option><type></option> + </term> + <listitem> + <variablelist> + <varlistentry> + <term><option>hard</option></term> + <listitem> + <para> + for enforcing <emphasis remap='B'>hard</emphasis> resource limits. + These limits are set by the superuser and enforced by the Kernel. + The user cannot raise his requirement of system resources above such values. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>soft</option></term> + <listitem> + <para> + for enforcing <emphasis remap='B'>soft</emphasis> resource limits. + These limits are ones that the user can move up or down within the + permitted range by any pre-existing <emphasis remap='B'>hard</emphasis> + limits. The values specified with this token can be thought of as + <emphasis>default</emphasis> values, for normal system usage. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>-</option></term> + <listitem> + <para> + for enforcing both <emphasis remap='B'>soft</emphasis> and + <emphasis remap='B'>hard</emphasis> resource limits together. + </para> + <para> + Note, if you specify a type of '-' but neglect to supply the + item and value fields then the module will never enforce any + limits on the specified user/group etc. . + </para> + </listitem> + </varlistentry> + </variablelist> + </listitem> + </varlistentry> + + <varlistentry> + <term> + <option><item></option> + </term> + <listitem> + <variablelist> + <varlistentry> + <term><option>core</option></term> + <listitem> + <para>limits the core file size (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>data</option></term> + <listitem> + <para>maximum data size (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>fsize</option></term> + <listitem> + <para>maximum filesize (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>memlock</option></term> + <listitem> + <para>maximum locked-in-memory address space (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>nofile</option></term> + <listitem> + <para>maximum number of open files</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>rss</option></term> + <listitem> + <para>maximum resident set size (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>stack</option></term> + <listitem> + <para>maximum stack size (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>cpu</option></term> + <listitem> + <para>maximum CPU time (minutes)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>nproc</option></term> + <listitem> + <para>maximum number of processes</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>as</option></term> + <listitem> + <para>address space limit (KB)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>maxlogins</option></term> + <listitem> + <para>maximum number of logins for this user except + for this with <emphasis>uid=0</emphasis></para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>maxsyslogins</option></term> + <listitem> + <para>maximum number of logins on system</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>priority</option></term> + <listitem> + <para>the priority to run user process with (negative + values boost process priority)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>locks</option></term> + <listitem> + <para>maximum locked files (Linux 2.4 and higher)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>sigpending</option></term> + <listitem> + <para>maximum number of pending signals (Linux 2.6 and higher)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>msqqueue</option></term> + <listitem> + <para>maximum memory used by POSIX message queues (bytes) + (Linux 2.6 and higher)</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>nice</option></term> + <listitem> + <para>maximum nice priority allowed to raise to (Linux 2.6.12 and higher) values: [-20,19]</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>rtprio</option></term> + <listitem> + <para>maximum realtime priority allowed for non-privileged processes + (Linux 2.6.12 and higher)</para> + </listitem> + </varlistentry> + </variablelist> + </listitem> + </varlistentry> + + </variablelist> + <para> + In general, individual limits have priority over group limits, so if + you impose no limits for <emphasis>admin</emphasis> group, but one of + the members in this group have a limits line, the user will have its + limits set according to this line. + </para> + <para> + Also, please note that all limit settings are set + <emphasis>per login</emphasis>. They are not global, nor are they + permanent; existing only for the duration of the session. + </para> + <para> + In the <emphasis>limits</emphasis> configuration file, the + '<emphasis remap='B'>#</emphasis>' character introduces a comment + - after which the rest of the line is ignored. + </para> + <para> + The pam_limits module does its best to report configuration problems + found in its configuration file via <citerefentry> + <refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>. + </para> + </refsect1> + + <refsect1 id="limits.conf-examples"> + <title>EXAMPLES</title> + <para> + These are some example lines which might be specified in + <filename>/etc/security/limits.conf</filename>. + </para> + <programlisting> +* soft core 0 +* hard rss 10000 +@student hard nproc 20 +@faculty soft nproc 20 +@faculty hard nproc 50 +ftp hard nproc 0 +@student - maxlogins 4 + </programlisting> + </refsect1> + + <refsect1 id="limits.conf-see_also"> + <title>SEE ALSO</title> + <para> + <citerefentry><refentrytitle>pam_limits</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + + <refsect1 id="limits.conf-author"> + <title>AUTHOR</title> + <para> + pam_limits was initially written by Cristian Gafton <gafton@redhat.com> + </para> + </refsect1> +</refentry> |