Proxy and apt-get on Linux

I was trying to get updates to my Linux installation with apt-get but it didn’t work right away
because I was behind a proxy/firewall so I had to tell apt-get to use proxy but how? There is no parameter on apt-get
where you can tell it to use proxy server? So we just have to use environment variables and tell our Linux that http_proxy and https_proxy should use proxy server which will be found on this and that address like this:

For http traffic:

export http_proxy='http://our.secret.proxy:8080'


For https traffic:

export https_proxy='http://our.secret.proxy:8080'


After this all http and https traffic goes through our.secret.proxy and use port 8080 after this apt-get works perfectly.

Bur probably the right way to get apt-get work with proxy is to edit /etc/apt/apt.conf file and add there line:
Acquire::http::Proxy “http://server:port″;
Thank to Anonymous about this one.