Useful Linux administration notes

Debian

OS package management

• Get the versions that are available to install of a package: apt-cache madison <package-name>
• Install a specific package version: apt-get install <package-name>=<package-version-number>
• The package update logs are in /var/log/apt/history.log

Networking

• Get the list of open ports on a system (with superuser privileges, it also returns process information): sudo netstat -nlp

Restic

• Open a shell in the Restic container:

sudo docker compose --file /etc/ferrarimarco-home-lab/restic/compose.yaml run --build --interactive --rm --entrypoint /bin/bash restic-backup-workloads