Linux crontab and job scheduling In Linux, we can not ignore the usages of cron. It’s command line utility and it helps to schedule tasks. Those tasks will execute periodically pas per the configuration. In this article I am just…
Linux
How to delete locked mails from mail queue (Exim)?
Deleting locked emails from Exim mail queue.. Yeah its something different from normal deletion of mails from exim mail queue. Here I’m explaining how to remove locked emails from queue. While clearing the mail queue for a reason, I got…
ps command switches, usages and examples in Unix/Linux
Commonly using “ps command” switches with example – Unix/Linux This will be a very useful discussions if you are managing Linux servers with many processes. A lot of switches are available with the command “ps” to trace out processes with…
Top command usages and examples in Unix/Linux
Top command has an important role in Unix/Linux system/server administration side. The command “top” displays a dynamic view of process that are currently running under the system. Here I’m explaining some of the useful usage of top command for my…
How to covert ppk file to pem file – Linux Private Key?
What is the purpose of this conversion? Yeah, that’s nice!! Sometimes we need this conversion, if you have Linux and Windows OS on your PC/Laptop. Consider the scenario, you have servers on your AWS account and you downloaded the key…
[Malware Detector] Installation & Usage of Maldet on Linux
Why Maldet? This is one of the commonly using Malware detector for Linux servers. The installation and usages of Maldet is quit simple compared to other scanners. It uses threat data from network edge intrusion detection systems to extract malware that…
How to change the priority of a Linux process – What is nice value in Linux?
What actually “nice value” means ? Why should we bother ? Every process which are running and waiting to execute under Unix has it’s own priority. Changing the priority comes under the management of server processor (CPU) time with respect to…