Linux Labs· Everyday System OperationsLab 10 of 26

Package History, Undo, and Groups

A colleague changed the packages on a server and left no notes. Read the package manager's transaction history, reverse an upgrade and an install, undo your own undo, and find out where package groups come from.

  • Intermediate
  • 25 min
  • Not rated yet
Start labPart of Advanced Linux System Administration
  • A real environment in your browser
  • You run the commands yourself
  • Your result is checked automatically

In this moduleEveryday System Operations

  1. Package History, Undo, and GroupsYou are here
  2. Schedule Jobs with systemd Timers30 min
  3. Schedule Jobs with cron and at25 min
  4. Process Priority with nice and renice20 min
  5. Tuning Profiles and Performance Readings25 min
  6. Boot Targets and the Default Target30 min