setting proxy -system wide on ubuntu 11.10

[huu2011]

Hello all,
I have simple questions on how to set-up proxy to be applied system wide.

For example: username:loging@proxy.A.B.C : 8080 OR

Just proxy.A.B.C:8080.

Thank you
huu

[huu2011]

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/oneiric/main/binary-i386/Packages 407 Proxy Authentication Required ( Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. ) ]

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/oneiric/partner/source/Sources 407 Proxy Authentication Required ( Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. )

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/oneiric/partner/binary-amd64/Packages 407 Proxy Authentication Required ( Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. )

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/oneiric/partner/binary-i386/Packages 407 Proxy Authentication Required ( Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. )

thank you for support

[cortman]

Go under Settings>Network>Proxy. You can find the settings menu by searching for it in Unity, or clicking your username on the panel and selecting it from the drop-down box in Gnome shell.