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untagged - What a beginner should know/learn for sysadmin job?






This is a Canonical Question about System Administration Careers




When I start my job as System Administrator, what basics skills should I know/learn?



Are there any key differences for Network, Storage, Database, and other Administrators?



Answer



There is a lot of overlap with existing questions, I am creating a wiki here with links. Please feel free to update.




  • How to make (and restore) backups!

  • Customer service skills

  • Troubleshooting


  • How to respond when there is a crisis



  • The OSI Model, and IP networking.


  • How to document their network


  • How to ask for help in a way that will get you useful results.



  • Security


  • How to use the CLI


  • How to monitor the systems you will be responsible for

  • Also see




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