So I want to be able to test web access from outside our network. On my private server I have Squid running on port 3128 so:
ssh -L 3128:localhost:3128 jonny@myprivateserver.com
Then I can configure Firefox (with FoxyProxy) to use localhost port 3128 as a proxy. Then on the private server tail the squid access log
tail -f /var/log/squid/access.log
to check it is working.
To go that little step further it would also be possible to tunnel the DNS calls too with:
ssh -L 53:localhost:53 jonny@myprivateserver.com
Then edit /etc/resolv.conf adding my new DNS server:
nameserver 127.0.0.1
