10-05-2012
There is not so much magic in proxy, reverse for forward. The tool lsof can show you who is listening on any port of the local server. A tcp socket connects to host X port Y says "GET /Z HTTP/9.9" to some proxying service, and it is piped to host A port B after that service is fed with a "GET /C HTTP/?.?", where X Y Z are translated to A B C. Ditto for POST. Rules vary for the forwarding and translation of other HTTP lines coming from the original client that may be fed to the final service. If your config is not working, turn on debugging for the proxying service, and read the logs.
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LEARN ABOUT LINUX
a2dismod
A2ENMOD(8) System Manager's Manual A2ENMOD(8)
NAME
a2enmod, a2dismod - enable or disable an apache2 module
SYNOPSIS
a2enmod [ [-q|--quiet] module]
a2dismod [ [-q|--quiet] module]
DESCRIPTION
This manual page documents briefly the a2enmod and a2dismod commands.
a2enmod is a script that enables the specified module within the apache2 configuration. It does this by creating symlinks within
/etc/apache2/mods-enabled. Likewise, a2dismod disables a module by removing those symlinks. It is not an error to enable a module which
is already enabled, or to disable one which is already disabled.
Note that many modules have, in addition to a .load file, an associated .conf file. Enabling the module puts the configuration directives
in the .conf file as directives into the main server context of apache2.
OPTIONS
-q, --quiet
Don't show informative messages.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is effectuated automatically by a maintainer script. This switch should
not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the internal state data base.
EXIT STATUS
a2enmod and a2dismod exit with status 0 if all modules are processed successfully, 1 if errors occur, 2 if an invalid option was used.
EXAMPLES
a2enmod imagemap
a2dismod mime_magic
Enables the mod_imagemap module, and disables the mod_mime_magic module.
FILES
/etc/apache2/mods-available
Directory with files giving information on available modules.
/etc/apache2/mods-enabled
Directory with links to the files in mods-available for enabled modules.
SEE ALSO
apache2ctl(8), a2enconf(8), a2disconf(8).
AUTHOR
This manual page was written by Daniel Stone <daniel@sfarc.net> for the Debian GNU/Linux distribution, as it is a Debian-specific script
with the package.
12 October 2006 A2ENMOD(8)