CentOS 8

Apache httpd : Configure mod_proxy_wstunnel2020/01/10

	Enable [mod_proxy_wstunnel] module to configure WebSocket Proxy.
[1]	For sample apprication with WebSocket, it uses the one like here [2].
[2]	Configure SSL/TLS for Apache httpd, too. Refer to here.
[3]	Configure Apache httpd. For example, Configure httpd to set proxy on [/chat] for the application which listens on localhost:1337.

# module are enabled by default

[root@www ~]#

grep "wstunnel" /etc/httpd/conf.modules.d/00-proxy.conf

LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so

[root@www ~]#

vi /etc/httpd/conf.d/wstunnel.conf

# create new

ProxyRequests Off
SSLProxyEngine on
<Proxy *>
    Require all granted
</Proxy>

ProxyPass /socket.io/ https://www.srv.world:1337/socket.io/
ProxyPassReverse /socket.io/ https://www.srv.world:1337/socket.io/

ProxyPass /chat https://www.srv.world:1337/
ProxyPassReverse /chat https://www.srv.world:1337/

[root@www ~]#

systemctl restart httpd

[4]	If SELinux is enabled, change policy. The port below is the one sample application listens.

[root@www ~]#

setsebool -P httpd_can_network_connect on

[root@www ~]#

semanage port -a -t http_port_t -p tcp 1337

[5]	Access to the sample application to make sure it works normally on proxy environment.

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