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 purpose. NOTE: There might be
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 that partition. # df -h
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) There is a parameter NOPASSWD which has to be used
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 the load on your system
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 run them on putty as in
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. Each log file may be handled
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 As you can see by default anyone can press "e"
What is umask value? In computing, umask is a command that determines the default permission to be set on any file or directory is created. It also refers to a function that sets the mask,