Ubuntu – Removing proxy for apt

aptnetworkingPROXY

I am having trouble removing proxy from apt. I recently came home from my institute where they used proxy to access internet. I had set up apt proxy using etc/apt/apt.conf file. I also had set the environment variables for proxies, and edited the proxy settings. Now that I have removed the lines from /etc/apt/apt.conf and removed the network proxy settings, I still cannot install apps using apt. Firefox runs fine without any hiccups.

I tried unseting the proxy variables but after reboot they still persist.

I am using Ubuntu Mate 18.04

The output of set | grep -i proxy is :

FTP_PROXY=http://172.16.2.30:8080/
HTTPS_PROXY=https://172.16.2.30:8080/
HTTP_PROXY=http://172.16.2.30:8080/
UBUNTU_MENUPROXY=1
ftp_proxy=http://172.16.2.30:8080/
http_proxy=http://172.16.2.30:8080/
https_proxy=https://172.16.2.30:8080/
no_proxy=127.0.0.0/8,::1,10.0.0.0/8

The Proxy settings look like this:

enter image description here

How can I remove the proxy settings?

Best Answer

I finally figured the proxy variables are either stored in ~/.bashrc, /etc/bash.bashrc or /etc/environment. I had edited the /etc/environment file before and I forgot that. I grepped each file for proxy and I the lines were in etc/environment.

I removed those lines and now its working fine.

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