Three ways to lock and unlock user account in Linux
If password policy is already implemented in your organization, then you no need to look for this options. However, if you had set up lock period for 24 hours you might need to unlock...
Category: Linux Advanced Commands
5 Easy ways to free up space (Remove unwanted or junk files) on Ubuntu
Most of us will free up the disk space whenever we face out of disk space on Linux system. It should be performed frequently, to make space for installing any new application and dealing...
How to verify whether NTP setup (Sync) is working or not in Linux?
NTP stand for Network Time Protocol, which synchronize the clock between computer systems over the network. NTP server keep all the servers in-sync with accurate time to perform time based jobs in an organization. NTP...
Linux Shell script to monitor CPU utilization with email alert
There are many opensource monitoring tools are available to monitor Linux systems performance which will send an email alert when the system reaches the given threshold limit. It monitors everything such as CPU utilization, Memory...
Two methods to check or list out installed security updates on Redhat (RHEL) & CentOS system
We had wrote two articles in the past about this topic and each articles were published for different requirements. If you would like to check those articles before getting into this topic. Navigate to...
Four ways to install security updates on Red Hat (RHEL) & CentOS systems
Patching of the Linux server is one of the important and routine task of Linux admin. Keeping the system with latest patch level is must. It protects your system against unnecessary attack. There are...
How to check available security updates on Red Hat (RHEL) and CentOS system
Based on your organization policy you may need to push only security updates due to various reasons. In most cases, it could be an application compatibility issues. Is it possible to limit yum to...
How to check whether the given package is already installed in Debian/Ubuntu systems.
We have recently published an article about bulk package installation. While doing that, I struggled to get the installed package information and did a small google search and found few methods about it.I would...
Linux Shell script to monitor Disk Space usage with email alert
There are numerous monitoring tools are available in market to monitor Linux systems and it will send an email when the system reaches the threshold limit. It monitors everything such as CPU utilization, Memory...
How to install & uninstall list of packages from a file in Linux
In some case you may need to install list of packages from one server to another server. For example, You have installed 15 packages on Server-A, and those packages needs to be installed on...
