Resolving github.com (github.com)... failed: Temporary failure in name resolution.wget: unable to resolve host address ‘github.com’
# sudo apt-get updateErr:1 http://security.ubuntu.com/ubuntu jammy-security InRelease Temporary failure resolving 'security.ubuntu.com'Err:2 http://archive.ubuntu.com/ubuntu jammy InRelease Temporary failure resolving 'archive.ubuntu.com'Err:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Temporary failure resolving 'archive.ubuntu.com'Err:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Temporary failure resolving 'archive.ubuntu.com'Reading package lists... DoneW: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease Temporary failure resolving 'archive.ubuntu.com'W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease Temporary failure resolving 'archive.ubuntu.com'W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-backports/InRelease Temporary failure resolving 'archive.ubuntu.com'W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease Temporary failure resolving 'security.ubuntu.com'W: Some index files failed to download. They have been ignored, or old ones used instead.