How to load the old kernel without rebooting server
How to sort a file of size 2N bytes, if I have N bytes of memory?
How to check all open ports on linux machine and block unsed ports????????
How does the boot process[init levels] work on Linux? How is it different from Solaris?
What is the difference between an argument and an option/switch?
i want some basic level enterview questions can any one can help me in this
What are main anti-spam features available in sendmail?
cups stands for..?
How find out drivers of installed devices in linux (RHEL)?
What is the minimum number of partitions you need to install Linux?
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.
What is the difference between Telnet and SSH?
what is kernel panic error ? how will you fix it if you have face it after rebooting without the the help of rescue disk ?