mod_proxy_wstunnel，sudo a2enmod proxy_wstunnel不适用于centos

Question

Hi I am trying to install mod_proxy_wstunnel as instructed in the link http://www.amoss.me.uk/2013/06/apache-2-2-websocket-proxying-ubuntu-mod_proxy_wstunnel/ , I am running Centos server. When I run the command

sudo a2enmod proxy_wstunnel

I get a error

sudo: a2enmod: command not found.

Could anyone please help me.

Cheers Sunil

Answer 1

This module is not listed in /etc/httpd/conf.modules.d/00-proxy.conf to be uncommented but that doesn't mean it's not there. It's available in /etc/httpd/modules/mod_proxy_wstunnel.so

Just edit file

vi /etc/httpd/conf.modules.d/00-proxy.conf

and add this to the end

LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so

Restart apache and check

service httpd restart
httpd -M | grep wstunnel

If you get

 proxy_wstunnel_module (shared)

You are ready to roll

Answer 2

The a2enmod command is an Ubuntu on Apache construct, which is why you are getting the error. All this command does is symlink the .so module files in mods-available to mods-enabled. These are then loaded automatically by Apache. However, those folders are another Ubuntu on Aapache construct so you won't find them on Centos. Centos uses a modules directory in the /etc/httpd directory that is a symlink to /usr/lib64/httpd/modules (on my system) so you just need.

That said, in order to install mod_proxy_wstunnel you need to have Apache2.4 or better. See the compatability on http://httpd.apache.org/docs/2.4/mod/mod_proxy_wstunnel.html .