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Linux Systems Administrator II Interview Questions

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User has lost root password, how do you reset?

5 Answers

init 1, change root password... I missed this one.

"init 1" doesn't always work, if you're not already root some systems will ask you for root password, and if you're not logged into the system ? What always works is to boot of a live CD, mount the file system with /etc, edit the /etc/passwd, /etc/shadow file.

Actually the easiest way to do this is to single the box in run-level 1 then use the standard passwd tools to update the hash. That's far simpler than using a live cd and editing the shadow file. This a network based kvm. is an operation that can be done at the DC or over ipmi or

Define the difference between a hub and a switch

3 Answers

When does DNS use TCP instead of UDP

4 Answers

If you had a problem with another employee, how would you deal with it?

2 Answers

RedHat Clustering and EMC SAN questions -- Had never dealt with them before

1 Answer

What was the most difficult and/or convoluted bash one liner you ever wrote

1 Answer

Give an example of a time when you suffered a failure.

1 Answer

What is runlevel 3?

1 Answer

Know what the lsof command does.

2 Answers

Email broken for one user only....

1 Answer