A proxy server is the one used to provide shared internet connectivity to the clients running
private IP addresses. Squid is a widely-used proxy cache for Linux and UNIX platforms.
Commands
#sudo apt-get install squid
#sudo cp /etc/squid/squid.conf /etc/squid/squid.conf.original
#sudo nano /etc/squid/squid.conf
#http_port 8080
#visible_hostname testproxy
#acl fortytwo_network src 192.168.42.0/24
#http_access allow fortytwo_network
#acl biz_network src 10.1.42.0/24
#acl biz_hours time M T W T F 9:00-17:00
#http_access allow biz_network biz_hours
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#service squid restart
#cd /var/log/squid/
#sudo tail -f access.log
sudo /var/lib/apt/lists