From: Rich Bowen
Configuring Apache to listen on specific addresses and ports.
+Configuring Apache HTTP Server (httpd) to listen on specific addresses and ports.
Related Modules | Related Directives |
---|---|
When Apache starts, it binds to some port and address on +
When httpd starts, it binds to some port and address on the local machine and waits for incoming requests. By default, it listens to all addresses on the machine. However, it may need to be told to listen on specific ports, or only on selected addresses, or a combination of both. This is often combined with the - Virtual Host feature, which determines how Apache responds to + Virtual Host feature, which determines how httpd responds to different IP addresses, hostnames and ports.
The Listen
@@ -90,10 +90,10 @@
A growing number of platforms implement IPv6, and APR supports IPv6 on most of these platforms, - allowing Apache to allocate IPv6 sockets, and to handle requests sent + allowing httpd to allocate IPv6 sockets, and to handle requests sent over IPv6.
-One complicating factor for Apache administrators is whether or +
One complicating factor for httpd administrators is whether or
not an IPv6 socket can handle both IPv4 connections and IPv6
connections. Handling IPv4 connections with an IPv6 socket uses
IPv4-mapped IPv6 addresses, which are allowed by default on most
@@ -101,19 +101,19 @@
OpenBSD, in order to match the system-wide policy on those
platforms. On systems where it is disallowed by default, a
special configure
parameter can change this behavior
- for Apache.
On the other hand, on some platforms, such as Linux and Tru64, the
only way to handle both IPv6 and IPv4 is to use
- mapped addresses. If you want Apache to handle IPv4 and IPv6 connections
+ mapped addresses. If you want httpd to handle IPv4 and IPv6 connections
with a minimum of sockets, which requires using IPv4-mapped IPv6
addresses, specify the --enable-v4-mapped
configure
option.
--enable-v4-mapped
is the default on all platforms except
- FreeBSD, NetBSD, and OpenBSD, so this is probably how your Apache was
+ FreeBSD, NetBSD, and OpenBSD, so this is probably how your httpd was
built.
If you want Apache to handle IPv4 connections only, regardless of +
If you want httpd to handle IPv4 connections only, regardless of
what your platform and APR will support, specify an IPv4 address on all
Listen
directives, as in the
following examples:
If your platform supports it and you want Apache to handle IPv4 and +
If your platform supports it and you want httpd to handle IPv4 and
IPv6 connections on separate sockets (i.e., to disable IPv4-mapped
addresses), specify the --disable-v4-mapped
configure
option. --disable-v4-mapped
is the
default on FreeBSD, NetBSD, and OpenBSD.
Configuring Apache to listen on specific addresses and ports.
+Configuring Apache HTTP Server (httpd) to listen on specific addresses and ports.
When Apache starts, it binds to some port and address on +
When httpd starts, it binds to some port and address on the local machine and waits for incoming requests. By default, it listens to all addresses on the machine. However, it may need to be told to listen on specific ports, or only on selected addresses, or a combination of both. This is often combined with the - Virtual Host feature, which determines how Apache responds to + Virtual Host feature, which determines how httpd responds to different IP addresses, hostnames and ports.
The
A growing number of platforms implement IPv6, and
One complicating factor for Apache administrators is whether or +
One complicating factor for httpd administrators is whether or
not an IPv6 socket can handle both IPv4 connections and IPv6
connections. Handling IPv4 connections with an IPv6 socket uses
IPv4-mapped IPv6 addresses, which are allowed by default on most
@@ -108,20 +108,20 @@
OpenBSD, in order to match the system-wide policy on those
platforms. On systems where it is disallowed by default, a
special
On the other hand, on some platforms, such as Linux and Tru64, the
only way to handle both IPv6 and IPv4 is to use
- mapped addresses. If you want Apache to handle IPv4 and IPv6 connections
+ mapped addresses. If you want httpd to handle IPv4 and IPv6 connections
with a minimum of sockets, which requires using IPv4-mapped IPv6
addresses, specify the --enable-v4-mapped
--enable-v4-mapped
is the default on all platforms except
- FreeBSD, NetBSD, and OpenBSD, so this is probably how your Apache was
+ FreeBSD, NetBSD, and OpenBSD, so this is probably how your httpd was
built.
If you want Apache to handle IPv4 connections only, regardless of +
If you want httpd to handle IPv4 connections only, regardless of
what your platform and APR will support, specify an IPv4 address on all
If your platform supports it and you want Apache to handle IPv4 and +
If your platform supports it and you want httpd to handle IPv4 and
IPv6 connections on separate sockets (i.e., to disable IPv4-mapped
addresses), specify the --disable-v4-mapped
--disable-v4-mapped
is the