Configure HTTPD To Listen on Multiple Ports

How do I configure Apache HTTPD to listen on multiple ports under RHEL / Fedora / CentOS Linux Server?

Multiple ports can be configured via Listen directive under Apache web server. By default httpd listens on TCP port 80.

How to configure httpd to listen multiple ports?

Open configure file /etc/httpd/conf/httpd.conf and modify the Listen directive tells the server to accept incoming requests on the specified port. Multiple Listen directives may be used to specify a number of ports to listen to.
# vi /etc/httpd/conf/httpd.conf
Find line that read as follows:
Listen 80
Force httpd to listen to port 81:
Listen 81
Force httpd to listen on both port 80 and 81:
Listen 80
Listen 81

Save and close the file. Restart httpd:
# /etc/init.d/httpd restart

A note about SELinux

If you are using SELinux, make sure port 81 is configured and not blocked by SELinux. By default SELinux only allows port number 80 and 443 for httpd service. To display current port contexts, enter:
# semanage port -l | grep http
# semanage port -l | grep -w '^http_port_t'

Sample outputs:

http_port_t                    tcp      80, 443, 488, 8008, 8009, 8443

To add port 81 to port contexts, enter:
# semanage port -a -t http_port_t -p tcp 81
You can verify new settings, enter:
# semanage port -l | grep http_port_t
Sample outputs:

http_port_t                    tcp      80, 81, 443, 488, 8008, 8009, 8443

Finally, reload or restart the HTTPD server, enter:
# /sbin/service httpd reload

Page last updated at 5:57 AM, April 21, 2012.

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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