Install Squid Proxy Server
How to install and configure the squid proxy server under Debian Linux
Install the package using apt:
apt-get install squid
/etc/squid/squid.conf and uncomment the lines
acl localnet src 10.0.0.0/8 and
http_access allow localnet
to allow that you can connect from internal networks and tunnels.
Now you can connect to port 3128 and use squid to cache the requests.