Senior Linux Administrator Interview Questions

77 senior linux administrator interview questions shared by candidates

Basic knowledge and background questions. It wasn't a "How would you solve this problem" type thing, more of a "What kind of experience do you have with XYZ..." Having read my resume, they knew I had been doing this work for a very long time, so didn't waste my time with a lot of very basic unix-type questions. Instead, for the things I didn't already have experience with, they asked if I would be willing to learn - which, of course, I was more than happy to do. Like most people in this industry, I always like learning new technologies.
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Senior Linux Administrator

Interviewed at Project Hosts

4.8
Apr 27, 2022

Basic knowledge and background questions. It wasn't a "How would you solve this problem" type thing, more of a "What kind of experience do you have with XYZ..." Having read my resume, they knew I had been doing this work for a very long time, so didn't waste my time with a lot of very basic unix-type questions. Instead, for the things I didn't already have experience with, they asked if I would be willing to learn - which, of course, I was more than happy to do. Like most people in this industry, I always like learning new technologies.

Questions on the first step were in depth and reasonable for a Senior Linux admin. The entire linux LAMP stack is covered. Most difficult for me was: Q: What directives should be placed in an .htaccess file to allow access only to users coming from network 203.0.113.0/24 OR those users who can authenticate themselves using the username of “bob” and a password of “pass12word75”. Be as specific as possible, including what modules are required for your solution to work. If any other files are required for your, list the name and contents of those files as well. A:
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Senior Linux Administrator

Interviewed at ZeroLag

3.2
Oct 26, 2013

Questions on the first step were in depth and reasonable for a Senior Linux admin. The entire linux LAMP stack is covered. Most difficult for me was: Q: What directives should be placed in an .htaccess file to allow access only to users coming from network 203.0.113.0/24 OR those users who can authenticate themselves using the username of “bob” and a password of “pass12word75”. Be as specific as possible, including what modules are required for your solution to work. If any other files are required for your, list the name and contents of those files as well. A:

Why are you looking? What is the importance of cd? What are built-in commands? What is forking? How does a process fork? What is the difference between hardware and software RAID? Hint: They use mdadm so if you use other types of RAID, they wouldn't appreciate it. What are the types of RAID? Hint: review on the basics of RAID0, RAID1, RAID0+1, RAID1+0 and be ready to give examples of what applications can be used for each type of RAID.
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Senior Linux Systems Administrator

Interviewed at Medical Science & Computing

4.1
Jun 20, 2017

Why are you looking? What is the importance of cd? What are built-in commands? What is forking? How does a process fork? What is the difference between hardware and software RAID? Hint: They use mdadm so if you use other types of RAID, they wouldn't appreciate it. What are the types of RAID? Hint: review on the basics of RAID0, RAID1, RAID0+1, RAID1+0 and be ready to give examples of what applications can be used for each type of RAID.

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