We have proxy Internet at college and I can not access it on Ubuntu. It works on browsers but it doesn't work for any other application like the Ubuntu software center. I tried to apply the network proxy settings system wide and it doesn't work. It gives this error:

Failed to download the repository information
Check your Internet connection

Using with 8080 with user name and password.
They use Microsoft Forefront Threat Management Gateway for proxy server.
help !

  • We need to know: 1. What is your proxy-adress and port? 2. do you use authentication like username and password on it? 3. What kind of network are you connected to? Explain briefly. – Denny Oct 7 '13 at 11:18
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    @denNorske i have just added the information you required :) – Waqas Oct 7 '13 at 13:07
  • I'll make an answer for you, hang on for 2 hours - busy now. – Denny Oct 7 '13 at 14:03
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    @denNorske ok 2 hours :/ – Waqas Oct 8 '13 at 4:09

check the file /etc/apt/apt.conf

The contents are, after applying the proxy "system wide":

Acquire::http::proxy "";
Acquire::ftp::proxy "";
Acquire::https::proxy "";

But, in order to make this work, you must add your username and password into it:

Acquire::http::proxy "http://<username>:<password>@";
Acquire::ftp::proxy "ftp://<username>:<password>@";
Acquire::https::proxy "https://<username>:<password>@";

Save the file and you are good to go to install things from both terminal and Software-center :P

(Note that the proxy will only work on internet-browsers and software-center/terminal with apt-get)

| improve this answer | |
  • No problem, glad i could help! – Denny Oct 8 '13 at 12:15
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    Isn't there any secure way to put the password there because its readable to anyone who can access that file ? – Waqas Nov 11 '13 at 10:39

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