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I am unable to install software using the Software Center at work. A nearly identical install of 11.10 at home works fine. I suspect the proxy settings are the problem, as they are used at work, but not at home. The system at work does browse the web and respond appropriately to nslookup's.

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Create or edit /etc/apt/apt.conf defining your proxy configuration_

Acquire::http::Proxy "http://username:password@proxy_name_or_ip:port/";
Acquire::https::Proxy "https://username:password@proxy_name_or_ip:port/";
Acquire::ftp::Proxy "ftp://username:password@proxy_name_or_ip:port/";

You could ignore the username and password if you make no use of they, and you could ignore https or ftp in the same way.

This is based on a comment in a ticket reporting this issue.

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Search for "network proxy" in Dash. Fill out your proxy details and set it system wide. Now, the software center can get the required packages via proxy server you set.

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In Ubuntu 11.10 the system wide proxy setting is done via the network settings. And i still have the same problem after setting the proxy. – jgomo3 Mar 7 '12 at 15:57

protected by Community Aug 28 '12 at 19:57

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