I'm new in Linux and i am using Ubuntu 20.04.2.0 LTS. I am tring to install git with following steps in this site. When I run sudo apt update or sudo apt-get update command that returns this errors:
sudo apt update
Get:1 http://security.ubuntu.com/ubuntu focal-security InRelease [109 kB] Hit:2 http://dl.google.com/linux/chrome/deb stable InRelease Err:3 http://tr.archive.ubuntu.com/ubuntu focal InRelease Temporary failure resolving 'tr.archive.ubuntu.com' Err:4 http://tr.archive.ubuntu.com/ubuntu focal-updates InRelease Temporary failure resolving 'tr.archive.ubuntu.com' Err:5 http://tr.archive.ubuntu.com/ubuntu focal-backports InRelease Temporary failure resolving 'tr.archive.ubuntu.com' Fetched 109 kB in 36s (3.074 B/s) Reading package lists... Done Building dependency tree Reading state information... Done All packages are up to date. W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/focal/InRelease Temporary failure resolving 'tr.archive.ubuntu.com' W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease Temporary failure resolving 'tr.archive.ubuntu.com' W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease Temporary failure resolving 'tr.archive.ubuntu.com' W: Some index files failed to download. They have been ignored, or old ones used instead. I have also tried sudo apt-get update I have tried this solution in https://askubuntu.com/ but changing DNS is not solved my Temporary failure resolving 'tr.archive.ubuntu.com'and according to second part of this solution I shall remove deb http:/archive.canonical.com/ natty backports line from my source.list but i already don't have this.
My sources.list
