You can also install and configure squid as a cache server on the local individual machine for speeding up your internet access.
Open up the terminal and type the following command to install squid:
sudo apt-get install squid
Open the squid.conf file for editing using command:
gksudo gedit /etc/squid/squid.conf
Find the http_port tag, By default it reads
# http_port 3128
This is the default port that Squid will listen on for requests. If you want to change it, uncomment the line and set the correct port. If you want Squid to listen only on one specific NIC, you can also change the IP address – for example : 192.168.1.5:3128
Next, find the http_access section Uncomment these 2 lines:
acl our_networks src 192.168.1.0/24 192.168.2.0/24
http_access allow our_networks
NOTE: You'll need to change 192.168.1.0/24 to match your network. Unless you have a second subnet you can delete 192.168.2.0/24
With above change, the basic squid configuration is done, you can now start/stop the squid server using command: sudo /etc/init.d/squid start|restart|stop
Configuring squid Clients
To configure any application including a web browser to use squid, modify the proxy setting with the IP address of the squid server and the port number that you have specified in the squid configuration file (default 3128).
Below example showing the Firefox configuration for using squid proxy server running on ip address 192.168.1.2 and port 3128.