--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/en/docs/stream/ngx_stream_limit_conn_module.xml	Thu Jun 18 21:04:07 2015 +0300
@@ -0,0 +1,141 @@
+<?xml version="1.0"?>
+
+<!--
+  Copyright (C) Igor Sysoev
+  Copyright (C) Nginx, Inc.
+  -->
+
+<!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
+
+<module name="Module ngx_stream_limit_conn_module"
+        link="/en/docs/stream/ngx_stream_limit_conn_module.html"
+        lang="en"
+        rev="1">
+
+<section id="summary">
+
+<para>
+The <literal>ngx_stream_limit_conn_module</literal> module (1.9.3) is used to
+limit the number of connections per the defined key, in
+particular, the number of connections from a single IP address.
+</para>
+
+</section>
+
+
+<section id="example" name="Example Configuration">
+
+<para>
+<example>
+stream {
+    limit_conn_zone $binary_remote_addr zone=addr:10m;
+
+    ...
+
+    server {
+
+        ...
+
+        limit_conn           addr 1;
+        limit_conn_log_level error;
+    }
+}
+</example>
+</para>
+
+</section>
+
+
+<section id="directives" name="Directives">
+
+<directive name="limit_conn">
+<syntax><value>zone</value> <value>number</value></syntax>
+<default/>
+<context>stream</context>
+<context>server</context>
+
+<para>
+Sets the shared memory zone
+and the maximum allowed number of connections for a given key value.
+When this limit is exceeded, the server will close the connection.
+For example, the directives
+<example>
+limit_conn_zone $binary_remote_addr zone=addr:10m;
+
+server {
+    ...
+    limit_conn addr 1;
+}
+</example>
+allow only one connection per an IP address at a time.
+</para>
+
+<para>
+When several <literal>limit_conn</literal> directives are specified,
+any configured limit will apply.
+</para>
+
+<para>
+The directives are inherited from the previous level if and
+only if there are no
+<literal>limit_conn</literal>
+directives on the current level.
+</para>
+
+</directive>
+
+
+<directive name="limit_conn_log_level">
+<syntax>
+<literal>info</literal> |
+<literal>notice</literal> |
+<literal>warn</literal> |
+<literal>error</literal></syntax>
+<default>error</default>
+<context>stream</context>
+<context>server</context>
+
+<para>
+Sets the desired logging level for cases when the server
+limits the number of connections.
+</para>
+
+</directive>
+
+
+<directive name="limit_conn_zone">
+<syntax>
+    <value>key</value>
+    <literal>zone</literal>=<value>name</value>:<value>size</value></syntax>
+<default/>
+<context>stream</context>
+
+<para>
+Sets parameters for a shared memory zone
+that will keep states for various keys.
+In particular, the state includes the current number of connections.
+Currently, the supported value for the <value>key</value> is
+the client address in the binary form specified as
+<literal>$binary_remote_addr</literal>.
+Connections with an empty key value are not accounted.
+Usage example:
+<example>
+limit_conn_zone $binary_remote_addr zone=addr:10m;
+</example>
+Here, the key is a client IP address set by the
+<literal>$binary_remote_addr</literal> key.
+The size of <literal>$binary_remote_addr</literal>
+is 4 bytes.
+The stored state always occupies 32 bytes
+on 32-bit platforms and 64 bytes on 64-bit platforms.
+One megabyte zone can keep about 32 thousand 32-byte states
+or about 16 thousand 64-byte states.
+If the zone storage is exhausted, the server will close the connection.
+</para>
+
+</directive>
+
+
+</section>
+
+</module>