hp

Delete SSH Keys

by on June 24, 2010 · 5 comments

One my user leaves the office and I’d like to disable her access to our UNIX / Linux system. How do I delete ssh key from the UNIX systems so that user can not log in?

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I want to run a Unix command 100 times using a for loop from 1 to 100. Can you tell me how to take a block of numbers in a loop under KSH or BASH shell?

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How do I find Unix version and release number using command line options? What version, release, and maintenance level of Unix is running on my system?

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While updating my CentOS / RHEL HP Linux server via yum command it givens an error which read as follows:

There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them

How do I fix this problem under RHEL / CentOS Linux 5.x server operating systems?

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Question: I know how to boot into single user mode under Linux and FreeBSD. But, how do I boot into single user mode under HP-UX (HP9000) UNIX operating system?

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Q. Is There a UNIX / Linux unerase or undelete command? How do I undelete files under a UNIX / Linux system?

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Q. I’ve upgrade my CentOS / RHEL (Red Hat Enterprise Linux) 4.7 on HP ProLiant DL580 G5 and it is showing unknown NMI errors in the logs:

Uhhuh. NMI received for unknown reason 30.
Dazed and confused, but trying to continue
Do you have a strange power saving mode enabled?

Uhhuh. NMI received for unknown reason 20.
Dazed and confused, but trying to continue
Do you have a strange power saving mode enabled?

How do I fix this error?

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