Linux User and Accounts Management (QUIZ)
**NOTE:** Each correct answer would give you 5 point. 1. **What do you type in the password field of /etc/passwd to prevent a user from accessing a system?** A comma
Linux
Installing Linux and Linux Kernel (QUIZ)
**NOTE:** Each correct answer would give you 5 point. 1. **What advantages does GRUB offer over LILO boot loader?** It enables you to boot multiple operating systems It enables you
How to keep a track of all the commands run by any user in Linux
What if you want to know what were the commands which were executed by any user on any Linux server ### Method 1 Check the .bash_history file in user's home
How do you check Linux machine is Physical or Virtual remotely?
There is no hard and fast rule to check whether the machine is physical or virtual but still we do have some commands which can be used for the some
df shows 100% full partition even when there is space on the disk
Now this is a situation where I got stucked into the other day where df -h showed me the partition was 100% full disrupting many of the the applications using
How to configure passwordless sudo for a user in Linux
**To learn more about the various syntax used in sudoers file follow below link** [Understanding syntax, arguments, aliases used in sudoers file with examples (visudo)]({{< relref "understanding-syntax-arguments-aliases/index.md" >}}) There is a parameter **NOPASSWD**
Understanding Load Average in Linux and when to be worried about it?
The one of the most important task of any Linux Admin includes performance monitoring which includes a parameter "**Load Average**" or "**CPU Load**". Load Average is the value which represents
How to run a process in background or bring to foreground in Linux
### Running a process in background What if you a script which takes more than 24 hours to run so in those cases it is not a good idea to
How to configure logrotate for a new log file in Red Hat Linux
### What is logrotate? logrotate is designed to ease administration of systems that generate large numbers of log files. It allows automatic rotation, compression, removal, and mailing of log files.
How to secure boot loader (grub menu) with password in RHEL 6
Below is the GRUB menu where we are planning to put the password so that no one logs in to single user mode without permission [](http://2.bp.blogspot.com/-y21ElE_On2Y/U5A3nD54ISI/AAAAAAAADVM/ia48loXAAVE/s1600/6-5-2014+2-49-12+PM.png) As you can see