How to solve the error  Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/focal/InRelease  Temporary failure resolving 'de.archive.ubuntu.com on Ubuntu Server?

Today when I was working in my VM for testing with the OS Ubuntu Server I faced the below error during the update.


One solution that I have found to solve this problem is to type this command to Temporarily add a known DNS server to your system:

echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null
Then run all these commands to update all the system packages
sudo apt-get update


sudo apt-get install apt-transport-https
sudo apt-get upgrade



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