Using server version of 10.4 beta 2

Need to to set the proxy that the system needs to use


  • I would like to setup the proxy from a /etc/network/interfaces file, which has been enhanced with guessnet-magic; so depending on the network I end up using I want to setup the system wide proxy.
    – blueyed
    Commented Aug 11, 2011 at 18:44
  • oh man, this is just mean, over 10k views, and only 4 up boats :(
    – thecoshman
    Commented May 24, 2012 at 7:56

4 Answers 4


Depending on your needs you could add


to /etc/environment to have them set by the login-process.


  • 1
    would this apply the proxy settings even if no one logs in? Ideally, I don't want to have to arse around on the machine, just to update it or what not.
    – thecoshman
    Commented Apr 15, 2010 at 11:59
  • Typo: cat /etc/environment Commented Jan 9, 2012 at 8:58
  • There is also AUTO_PROXY for URL to PAC file formats.
    – Wernight
    Commented Aug 26, 2014 at 7:50
  • Once you've updated your /etc/environment file, you can make sure the changes take place immediately for the current session without having to log off and back on, by running source /etc/environment. Commented Aug 6, 2018 at 22:19

To proxy updates, add a new file called 01proxy to your /etc/apt/apt.conf.d/ directory with the following line:

Acquire::http::proxy "http://[user]:[password]@[server_ip_or_name]:[port#]";

Substitute the user name/password used to log into the proxy (if required), the server ip or fully-resolved name, and the proxy port # to use when adding this line.


@Lairsdragon is correct (set /etc/environment), but there are more nuances.

An application will typically need to be run with this environment in place, for instance, from a login shell. That said, it's even more complex than that:

  • Many applications, especially servers are smart enough to consult /etc/environment.
  • Many don't consult /etc/enironment.
  • Some applications don't support proxies at all.
  • Others are configured with their own configuration files.
  • Still others will read from a different global file (like the gconf registry).

To really set something, you need to read the documentation on a particular application you are interested in to make sure you have set the correct file. Chances are, it will talk about how to set up a http_proxy somewhere in it's docs if it supports this.

This is similar on all operating systems. Setting network proxies is a confusing mess with many different and varied approaches to solving this problem.

Some References:



in place of yum install you can use sudo apt-get install squid then follow the blog!!!

  • 1
    Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. Commented May 22, 2012 at 2:03

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