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How to Install NTP in RHEL/CentOS

NTP (Network Time Protocol) is a time synchronizing tool for computers on network. Here is how to install

Sometimes you need to enable or disable root user in Linux. Here are the steps to enable & disable root users in Linux.

Many times you may need to get free RAM or check RAM size in Linux. Here is how to measure RAM size in Linux.

Sometimes you may need to disable SELinux is CentOS. Here are the steps to disable SELinux in CentOS.

MySQl Row Number is a very useful window function in MySQL. Here is MySQL Row Number Function & its applications.

MySQL supports different types of comments. Here is how to comment multiple lines in MySQL.

Mumble server is an open-source VOIP application. Here are the steps to install Mumble server in Linux.

Sometimes you may need to reboot Linux server from putty terminal. Here are the steps to do it.

Sometimes you may need to turn off firewalld. Here is how to disable/stop firewalld in CentOS, Redhat Linux.

Sometimes you need to export PostgreSQL table to CSV files. Here is how to export PostgreSQL table to CSV.