Category: Tips & Tricks

Checking website statistics using Webalizer

Webalizer is a free & open source application for analyzing of apache web access logs & usage logs & creating website statistics. After analyzing web logs, it produces various website statistics like daily statistics,...

Important Considerations to Make When Developing an IT Strategy

The success of modern business is largely based on the technology they use. If a business is using outdated and inefficient technology to manage existing customers, it is only a matter of time before...

postfix relay

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 than using the local mail host. External mail server or SmartHost can be a...

vi editor

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 ported to various Unix & Linux distributions. In Linux there exists another, advanced version...

Linux commands you should never run

Linux commands you should never run on your system

This article refers to some of the Linux commands you should never run on your system as they might prove to be DEADLY for your Linux systems. So before I proceed, I would like...

IP aliasing

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). This process of assigning multiple addresses to a single network interface is called IP...

network monitoring

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 your network security is not up to par, it is only a matter of...

squid authentication

How to setup SQUID AUTHENTICATION

Squid is a proxy web server that uses caching to optimizes website operation so that the web pages load more quickly, thereby improving the response time for the pages that are accessed by users...

DNF command with examples

Mastering DNF command with examples

DNF was first made available in Fedora 18 & with Fedora 22, it had replaced Yum to become default package manager for handling the system package files. DNF or Dandified YUM is actually a...

install nvm on linux

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 & process to install NVM on Linux. NVM stands for Node version manager & as...

replicate selinux policies

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 (Mandatory access controls). It reduces privileges for any server or service to minimum required...

Amazon EBS

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 that are spread across various devices, which you can use to store Elastic Compute...

yum tips

Some pretty useful YUM tips & tricks

Yum is the default package manager for RPM packages on RHEL & CentOS. And most of you working on these OS should be familiar with it (for those of you who are not, read...

curl command with examples

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, HTTPS, FTP, FTPS, IMAP, IMAPS, DICT, FILE, GOPHER, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP,...

useful linux commands

Useful Linux Commands that you should know

If you are Linux system administrator or just a Linux enthusiast/lover, than you loveĀ  & use command line aks CLI. Until some years ago majority of Linux work was accomplished using CLI only &...

nc command

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 over the network, similar to how you can use cat command to manipulate files...