Guide to configure Postfix Relay on Ubuntu & CentOS/RHEL
Postfix relay is the process by which we relay the mail from postfix to another mail server (AKA SmartHost) rather…
Tips & Tricks
Working with VI editor : The Basics
VI editor is a powerful command line based text editor that was originally created for Unix but has since been…
IP Aliasing : Assigning multiple IP addresses to single NIC
In this tutorial, we are going to learn to assign multiple IP addresses to a single NIC (Network Interface Card)….
4 Things You Need to Know About Network Monitoring
Did you realize hacking attempts happen once every 39 seconds? The overwhelming majority of these attacks target business owners. If…
Mastering DNF command with examples
DNF was first made available in Fedora 18 & with Fedora 22, it had replaced Yum to become default package…
Install NVM on Linux: Maintain multiple NodeJS versions with Node Version Manager
We have earlier discussed How to install Node.js on Linux systems. In this tutorial, we will learn about NVM &…
How to replicate SELinux policies among Linux machines
SELinux or Security Enhaced Linux, is a set of kernel modification & user-space tools, that implements access policies called MAC…
5 Lesser-Known Facts about Amazon EBS Could Save You Time and Money
Overview of EBS Amazon Elastic Block Store is a storage service based on block-level storage volumes. EBS volumes comprise blocks…
Learn to use CURL command with examples
Curl command is used to transfer files to and from a server, it supports a number of protocols like HTTP,…
Most useful Linux Commands that you should know
If you are a Linux system administrator or just a Linux enthusiast/lover, then you love & use command line aks…
NC command (NCAT) for beginners
NC command is for performing maintenance/diagnosis tasks related to network . It can perform operations like read,write or data redirections…
Executing Commands and Scripts at Reboot & Startup in Linux
There might arise a need to execute a command or scripts at reboot or every time when we start our…
Trying to Beta Test Your New App? Consider These Helpful Tips For Success
Developing a popular and glitch-free app is usually one of the main priorities a business owner has. Long gone are…
Configuring redis MASTER SLAVE setup
We discussed in our previous tutorial, about redis server & its installation. In this tutorial, we will learn to create…
How to Improve Your Website’s Performance (An Overview)
Recent studies show that it takes a consumer about half a second to form an opinion about a business website….
Top 4 Advantages of Using Syslog Server
Understanding what is going on in your network environment is crucial to health of your system. Using a syslog server…