So I have a proxy.pac file at work (it doesn't have a username or password) it's just a simple .pac file.

I've gotten it to work with Chrome so I can surf the web, but apt-get and update do not work. How would I go about making this work?

Im on 10.10 btw.

3 Answers

In system --> preferences --> network proxy, enable Automatic proxy configuration and enter the URL of the PAC.

Then press apply system wide, and that should do the trick.

3

sudo apt-get update failed (on a fresh 11.04 VM) after following the instructions in DemonWareXT's answer (System -> Preferences -> Network Proxy).

I followed the instructions I found in (under "APT configuration file method") and then it worked.

On Ubuntu 12.04 or 14.04 with Unity, the following can break your Apt config.

In system --> preferences --> network proxy, enable Automatic proxy configuration >and enter the URL of the PAC.

Then press apply system wide, and that should do the trick.

The issue is that Apt has no concept of a "no_proxy" and so tries to send all traffic out this proxy. There are a couple ways to work around this, one is to create a specific override file for Apt telling it to use/ignore a proxy. Taken from

Acquire { Retries "0"; HTTP { Proxy ""; };
};

The other is after clicking Apply in the Network Proxy page, go edit the /etc/apt/apt.conf file as root sudo gedit /etc/apt/apt.conf and remove any mentions of proxy in this file.

2

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