Ubuntu set proxy howto

There are several ways of doing this, and different methods may work for different distro’s and versions of ubuntu.

To start, go to the ubuntu menu, select System->Preferences->Network Proxy
Click on manual proxy configuration
Select – Use the same proxy for all protocols
Enter the http proxy
Click on the Details button and enter your proxy username and password

We aint done yet,
1. Open the terminal
Applications->Accessories->Terminal
2. Change to user root by typing
sudo -s
give it your password (one used for logging in)
3. Type
gedit /etc/apt/apt.conf
You will find code similar to
Acquire::http::proxy “http://cache.abc.ac.ma:8080/”;
Acquire::ftp::proxy “ftp://cache.abc.ac.ma:8080/”;
Acquire::https::proxy “https://cache.abc.ac.ma:8080/”;
4. Modify the code to include the authentication(username and password) details for the proxy
Acquire::http::proxy “http://username:password@cache.abc.ac.ma:8080/”;
Acquire::ftp::proxy “ftp://username:password@cache.abc.ac.ma:8080/”;
Acquire::https::proxy “https://username:password@cache.abc.ac.ma:8080/”;

wget Behind proxy

You need to edit the file wgetrc as root:

sudo gedit /etc/wgetrc

Edit the following accordingly and remove the # sign to uncomment the proxy variables:

# You can set the default proxies for Wget to use for http, https, and ftp.
# They will override the value in the environment.
#https_proxy = http://proxy.yoyodyne.com:18023/
#http_proxy = http://proxy.yoyodyne.com:18023/
#ftp_proxy = http://proxy.yoyodyne.com:18023/

# If you do not want to use proxy at all, set this to off.
#use_proxy = on

Other ways of setting the proxy

You may type this on the terminal when logged in as root:
export http_proxy=”username.password@proxy.bids.ab.ca:portNumber”

or

Still on the terminal, and when logged in as root, edit the file /etc/bash.bashrsc by typing

sudo gedit /etc/bash.bashrc

Once it opens, add at the bottom of the file these 2 lines :

#proxy
export http_proxy=http://user:password@proxy.bids.ab.ca:portNumber/
export ftp_proxy=http://user:pass@proxy.bids.ab.ca:portNumber/
Sources: http://www.unixmen.com/linux-tutorials/939-configure-apt-get-to-work-behind-a-proxy-in-ubuntu-lucid-