How do I configure proxy server in Ubuntu?

I have tried using the network proxy setting, and also added the localhost to /etc/apt/sources.

List.d/proxy.list file. I can see that my proxy settings are getting applied, but still I am unable to connect to any web sites that requires authentication.

You can enable the system-wide proxy settings in System -> Preferences -> Network Proxy. Alternatively, you can manually configure your proxy settings, eg via NetworkManager, wicd, etc. There are a number of resources available to help you out with this: wifi-radar. System Settings. If you use the GUI proxy settings application, you will get a popup when you go to a website that requires authentication. If you select the Allow from this computer option, it will accept your proxy settings.

For those who are using GNOME, try the following steps: Open the file /etc/environment and add the following lines: export. Export ftpproxy=. Export noproxy=localhost,127.0/8,localhost,example.com
Restart the shell. Change the line below to have a proxy-server list instead of the IP address: export httpproxy=:.

How to set proxy in Apache Ubuntu?

I am trying to make a proxy for my company's intranet, I was able to do that in a Windows OS but I can't do the same in Ubuntu.

I have tried the following code but it doesn't work and I don't know why. The easiest way to get around this is to edit /etc/apt.conf and add the line: Acquire::";. After that, you will be able to use apt-get to install and update software. Note that you will need to restart the system for the changes to take effect. If you want to enable proxy support by default, you can run the command: sudo sed -i 's/Acquire::";/" /etc/apt.conf In Ubuntu 18.04.2, you can simply edit /etc/apt.d/proxy.
# The Acquire::"; line is required for HTTP proxy support. The solution provided by @mohit did not work for me. After many hours of debugging, I realized that I needed to add the line in /etc/apt.conf and not in /etc/apt.conf
Here is what worked for me. (for Ubuntu 16.04 and 18.04)
First, create a file in /etc/apt.d/ with name proxy.

The contents of that file should be as follows.