Linux Security: Using Open-Source Tools to Protect Your System
Linux is often hailed as being more secure than alternative systems, namely Windows and macOS. While this may be true…
system administrator
13- BASH Scripting – Creating Bash Functions for shell script
In our last tutorial, we discussed advanced uses of I/O redirection & we will now learn to create functions for…
How to setup PasswordLess SSH in Linux? (with Video tutorial)
This tutorial answers your question i.e. how to setup Passwordless SSH? SSH is a protocol to communicate a server with…
How to use SCP & RSYNC command line options to Backup your System
In this tutorial, we will discuss how to transfer files among systems using SCP & Rsync with some examples. We…
Monitoring Linux system resources using SAR (System Activity Report)
Once the servers have created & have been deployed to development or production etc, main task of system admin is…
Networking Bonding: Combining multiple NICs into one
When hosting successful & busy websites or operating a critical server, high availability & redundancy are major factors to consider….
How to change Date & Time in Linux
n this tutorial, we are going to discuss how to change date in Linux. We are going to discuss 3…
5 ways to add or change hostname in CentOS 7
The hostname for a system is like an identity for that system, it not only makes system management easy but…
Schedule CRON Jobs in Linux: with Crontab Examples
Learn how to schedule Cron Jobs in Linux. Cron or Crontab is a very important utility in Linux systems &…
How to install VNC Server on centos 7 for GUI remote access
In this tutorial, we will discuss how to install the VNC server on centos 7. VNC or Virtual Network Computing is…
How to create Bind DNS master slave setup in CentOS
Earlier we learned to create a DNS server for our environment using BIND with a single or Master server setup….
Manage KVM Using CLI on CentOS /RHEL
This tutorial discusses how to manage KVM using CLI with the help of a utility called ‘virsh’. In our last…
Configuring RAID1 (Mirroring) on CentOS/RHEL
RAID aka Redundant Array of Inexpensive Disk aka Redundant Array of Independent Disk is a data storage technology that uses…
How to add Linux host to Nagios monitoring server using NRPE
In our earlier tutorials, we installed & configured Nagios Monitoring server & also added Windows host to Nagios Server using…
Creating an Offline YUM repository in CentOS
In our earlier tutorial, we discussed “How we can create our own yum repository with ISO image & by mirroring…
Creating SWAP partition using FDISK & FALLOCATE commands
Swap-partition holds the memory which is used in case the physical memory (RAM) is full . When RAM capacity has been…
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