squid.conf

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The Squid configuration file is squid.conf, located in the /etc/squid directory. In the /etc/squid/squid.conf file, you set general options such as ports used, security options controlling access to the server, and cache options for configuring caching operations. You can use a backup version called /etc/squid/squid.conf.default to restore your original defaults. The default version of squid.conf provided with Squid software includes detailed explanations of all standard entries, along with commented default entries. Entries consist of tags that specify different attributes. For example, maximum_object_size and maximum_object set limits on objects transferred.

maximum_object_size 4096 KB

As a proxy, Squid will use certain ports for specific services, such as port 3128 for HTTP services like Web browsers. Default port numbers are already set for Squid. Should you need to use other ports, you can set them in the /etc/squid/squid.conf file. The following entry shows how you would set the Web browser port:

http_port 3128

Note 

Squid uses the Simple Network Management Protocol (SNMP) to provide status information and statistics to SNMP agents managing your network. You can control SNMP with the snmp access and port configurations in the squid.conf file.

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