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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

Disks, partitions, and filesystems

  • Get the list of block devices: lsblk
  • Get the attributes of a block device: blkid <device>
  • Get the list of disks and partitions and add the partition UUID: lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,PARTUUID