This article will guide you on how to configure Squid #proxy server on a Linux system. There is a lot more you can do with Squid proxy server.
Although primarily used for HTTP and FTP, #Squid includes limited support for several other protocols including Internet Gopher, SSL, TLS and HTTPS. Squid does not support the #SOCKS protocol, unlike Privoxy, with which Squid can be used in order to provide SOCKS support.
The squid. conf file defines the configuration for squid. The configuration includes (but not limited to) HTTP port number, the ICP request port number, incoming and outgoing requests, information about #firewall access, and various timeout information.
To connect Squid proxy:
i. Tools>Options>Advanced>Network>Settings.
ii. Select Manual proxy configuration and tick the 'use this proxy server for all protocols' box.
iii. Under HTTP Proxy: add the squid listening IP address, 10.0. 0.1. In the Port: section add the squid listening port 3128.
iv. Click OK to save the changes.
https://linuxapt.com/blog/50-configure-squid-proxy-server-on-ubuntu-20-04-lts