Squid Listen on Other Port ( Squid Configure Port Listing with SELinux)

By default, Squid listens on port 3128. However, you can configure Squid to listen on other ports as well. Here’s how to do it:

1. Edit the Squid configuration file. On most Linux distributions, the file is located at /etc/squid/squid.conf.
   sudo vi /etc/squid/squid.conf

2. Look for the http_port directive. This directive specifies the port that Squid listens on for HTTP traffic. (Diazepam) By default, the value is set to 3128.
   http_port 3128

3. Change the value to the port you want to use. For example, to listen on port 8080, change the line to:
   http_port 8080

4. Save the configuration file and exit.
5. Restart the Squid service to apply the changes:
   sudo systemctl restart squid


   Note: If you have SELinux enabled, you may need to configure it to allow Squid to listen on the new port. Here’s how to do it:

6. Install the SELinux policy tools:
   sudo yum install policycoreutils-python

7. Add a new port definition to SELinux using the semanage command. For example, to allow Squid to listen on port 8080, run:
   sudo semanage port -a -t http_port_t -p tcp 8080


   This adds a new port definition with the type http_port_t.

8. Verify that the new port is added:
   sudo semanage port -l | grep http_port_t


   You should see the new port listed in the output.

9. Restart the Squid service to apply the changes:
   sudo systemctl restart squid


That’s it! Squid should now be listening on the new port you configured.