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apt-get update error in Debian 11 "Temporary failure resolving" and also "Failed to fetch"

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apt-get update error in Debian 11 "Temporary failure resolving" and also "Failed to fetch"

This is what I get when I run the apt-get update on my debian 11 server.

Err:1 http://deb.debian.org/debian bullseye InRelease Temporary failure resolving 'deb.debian.org'
Err:2 http://packages.sury.org/php bullseye InRelease Temporary failure resolving 'packages.sury.org'
Err:3 http://deb.debian.org/debian bullseye-updates InRelease Temporary failure resolving 'deb.debian.org'
Err:4 http://security.debian.org/debian-security bullseye-security InRelease Temporary failure resolving 'security deb.debian.org'
Err:5 htttp://deb.nodesource.com/node_14.x bullseye InRelease Temporary failure resolving 'deb.nodesource.com'
Err:6 http://repo.mysql.com/apt/debian buster InRelease Temporary failure resolving 'repo.mysql.com'

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.

W: Failed to fetch http://deb.debian.org/debian/dists/bullseye/InRelease Temporary failure resolving 'deb.debian.org'
W: Failed to fetch http://security.debian.org/debian-security/dists/bullseye/security InRelease Temporary failure resolving 'security.debian.org'
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye-updates/InRelease Temporary failure resolving 'deb.debian.org'
W: Failed to fetch

답변1

This worked for me:

echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null

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