diff options
| -rw-r--r-- | tcpd/couriertcpd.sgml | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/tcpd/couriertcpd.sgml b/tcpd/couriertcpd.sgml index b62a616..d65a835 100644 --- a/tcpd/couriertcpd.sgml +++ b/tcpd/couriertcpd.sgml @@ -1,5 +1,5 @@ <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> -<!-- Copyright 2000-2009 Double Precision, Inc. See COPYING for --> +<!-- Copyright 2000-2015 Double Precision, Inc. See COPYING for --> <!-- distribution information. --> <refentry> <info><author><firstname>Sam</firstname><surname>Varshavchik</surname><contrib>Author</contrib></author><productname>Courier Mail Server</productname></info> @@ -221,6 +221,14 @@ sense to set limits on individual IP addresses. If a C block of addresses is assigned to a dialup modem pool, it is certainly possible to have many IP addresses within the same C block have connections to the POP3 server at the same time.</para> + + <para> + The <option>-maxperip</option> option can be overridden for + a given IP address by setting the + <envar>MAXCPERIP</envar> environment + variable, see <quote><link linkend="envar">Setting environment + variables</link></quote> for more information. + </para> </listitem> </varlistentry> @@ -582,7 +590,7 @@ address space).</para> </refsect2> - <refsect2> + <refsect2 id="envar"> <title>Setting environment variables</title> <para> @@ -612,6 +620,21 @@ connections from this IP address. <command>couriertcpd</command> only reads one entry from the access file, the entry for the most specific IP address.</para> + <informalexample> + <programlisting format="linespecific"> +192.68.0.10<tab>allow,MAXCPERIP=100 +</programlisting> + </informalexample> + + <para> + <command>couriertcpd</command> itself implements the + <envar>MAXCPERIP</envar> environment variable setting + in the access file, as an override + to the <option>-maxperip</option> parameter, which specifies the + maximum number of connections from the same IP address. If specified + in the access file for an IP address, or an IP address range, the + value given by <envar>MAXCPERIP</envar> overrides it. + </para> </refsect2> <refsect2> |