As a system admin i want to know some things what are the troubleshooting issues we are facing frequently and what are the tickets will be raised.
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What command can you use to review boot messages?
1. User gaves df -h and the system get hanged. why ? 2. what is the hardlink and softlink mount ? 3. why is portmape should be started ? 4. what is nologin option 5. how to restrict users from accessing nfs ? 6. what is the difference between cpio and tar 7. what are the kernel parameters ? how to find out it ? 8. why we use sysctl.conf ? 9. if we gives init1 from multiuser runlevel, will it affect other users who already logged in to the system ? 10. what will be the available space to use after configuering raid5 with 5 disks each having 5gb spce ?
What is the complete name of the default configuration file for LILO?
How to check all open ports on linux machine and block unsed ports????????
what restrict telnet for root itself but allow for other user
what is the difference between fork and thread ? and parent and child process in fork system call?
plz mention some interesting problems you faced and how you solved it?
How to apply patch for multiple servers .
will u plz send me the complete steps of installation of red hat linux on intel's core 2 duo processor?
My root password has been changed, how can i enter into the system without root password?
User unable to login in server then how can u troubleshooting it? Example: server at Bangalore. in that server two users try to login in server. 1st user able to login. but second user unable to login so how can troubleshoot it ?
How to trace any process background processing?