Fedora 26 dnf update not working behind proxy

Question

On Fedora 26 when I do sudo dnf update I get the error

Error: Failed to synchronize cache for repo 'updates'

I configured both my system-wide proxy and the proxy in dnf.conf. Other connections such as the browser work with this proxy.

How can I fix this?

Answer 1

Login to superuser

su

Edit configuration file

vi /etc/dnf/dnf.conf

Add your values

[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
proxy=http://172.31.1.6:8080
proxy_username=chuttu
proxy_password=verma

Now update

dnf update -y