It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator.

usage: $ sudo snap set squid http-port=9876 supported parameters:

• http-port: The socket addresses where Squid will listen for HTTP client requests. The default is '3128'
• cache-mem: The ideal amount of memory (MB) to be used for in-transit/Hot/negative-Cached objects. The default is '256'
• maximum-object-size: The max-size parameter on any cache_dir (MB). The default is '512'.
• maximum-object-size-in-memory: Objects greater than this size (MB)will not be attempted to kept in the memory cache. The default is '16'.
• cache_dir_space: The amount of disk space (MB) to use under cache directory. The default value is '4096'.
• visible-hostname: If you want to present a special hostname in error messages, etc, define this. The default value is 'store.etag.proxy'.
• cache_mgr: Email-address of local cache manager who will receive mail if the cache dies. The default value is 'webmaster@mail.com'.