Ubuntu is a Debian GNU / Linux operating system with an interface similar to the usual Windows users. It is used on PC laptops and servers. Which means that it also needs to configure a proxy server. In Ubuntu, this process has certain features that you should be paying attention to the following recommendations.
Proxy settings for Ubuntu
Open system settings in Ubuntu:
The newed opened settings menu click on the “Network” category:
On the left side of the window, click on the “Network Proxy”. In the “Method” drop-down list, choose “Manual”. Fill up the “HTTP” and “HTTPS” proxy fields with the data. Click on “Apply system wide” after.