Articles by admin


linux

Linux Performance monitoring using SAR

The tool sar is a very powerful tool that can be used to monitor performance of various Linux components such as CPU, Memory, IO, etc in real-time, and also collect data on an on-going basis…


linux

Linux Performance Monitoring

Listed below are few handy tools to monitor Linux system performance: System Monitoring: This is a graphical tool available in GUI mode, similar to Taskbar iin Windows,where we are have a real time monitoring of…


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Adding a CentOS 7 host to AD using realmd

A CentOS host can be added to an AD for suthentication using samba-winbind or realmd packages. In this tutorial we will learn the simple way of using AD aunthentication using realmd packages using the below…


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SELinux Security

SELinux is a set of security rules using which we can control the processes that can access specific files, folders and ports. These processes, files, folders and ports has a special security label called SELinux…



python

Python programming 1: Basics

Python is an interpreted language and not a compiled language. Therefore, it executes commands and outputs the results of each command in a sequence, till it hits an issue, or completes the program. This tutorial…



terminal

SSH : Password-less authentication

At times, for example if a server has a script that needs to copy a file to a client via SSH, it will be good if the server can SSH to the client without using…