Category: Tips & Tricks

redirect http to https

Redirect http to https: Apache Server

SSL secured webstites or HTTPS has now become a must to have on website, especially those handling sensitive client information. Having a HTTPS enabled website means that a intruder can’t intrude to communication between...

SELinux

Beginner’s guide to SELinux

SELinux or Security Enhanced Linux is advanced access control mechanism which was developed by US security agency NSA to prevent malicious intrusions & tempering. It implements MAC (Mandatory Access control) over already present DAC...

dockerfile example

Learn to create Dockerfile with Dockerfile example

We have earlier discussed how to create a docker container & also learned some important commands for managing the containers. In this tutorial, we will learn about dockerfile, all its parameters/commands with dockerfile example....

Centralizing Logs

A brief on Popular Tools for Centralizing Logs

Log files are a record of important events and transactions from all your IT equipment, applications, and networks that helps in identifying and troubleshooting problems that arise. Logging is something that application developers, system...

real time Linux monitoring

Real Time Linux monitoring with GLANCES monitoring tool

Glances is an open source real time Linux monitoring system that aims at providing as much as information possible in as minimum as space possible. Glances is like top command but more refined with...

nmap command

Beginner’s reference guide to NMAP command

Network Mapper or NMAP command open source security tool & is said to be the best port scanner. It is mainly used for auditing the network security & for penetration testing. Nmap command displays...

Complete guide to Dual Boot Ubuntu 18.XX with Windows 10

Ubuntu 18.04 aka Bionic Beaver was released on April 26th, 2018 with a lot of changes on front end as well as on backend. Major change that anybody who has ever used Ubuntu, will...

How to install GITHUB on Ubuntu : Step by Step

Github is a web based implementation of Git. Similar to Git, it is a distributed version control system & also offers the source code management functionality offer by Git. Github has all the features...

Linux Network Traffic Monitoring

Top 7 commands for Linux Network Traffic Monitoring

Monitoring is one of the main task that anyone SystemAdmin or even a normal user should know about to get the best out of their systems/servers & avoid any issues. In this tutorial, we...

PostgreSQL commands

Important PostgreSQL commands you should know

In this tutorial, we will learn about some useful PostgreSQL commands. We have already discussed the installation of PostgreSQL on CentOS & on Ubuntu systems. So let’s start, Recommended Read : MongoDB installation & configuration...

create swap

How to create SWAP SPACE in Linux system

Swap file or swap space is a file on Linux file-system that is used to hold programs or pages, in the event that the Physical memory aka RAM of the machine is full. Swap...

Linux File LInks

Working with Linux File Links

In this article by Oliver Pelz, the author of Fundamentals of Linux, you’ll take a look at what Linux file links are and how to work with them. Linux File Links As you may already know,...

crontab examples

Scheduling important jobs with CRONTAB : Crontab Examples

Crontab is very important utility in Linux systems & is used to set up time based job scheduling.  With the help of Crontab or cron, we can execute a command or a script to...

Redis CLI Commands

SysAdmin’s guide to REDIS CLI Commands

Redis is an open source in-memory data structure store that is mainly used as a caching server but can also be used as a database or as a message broker. We have already discussed...

install varnish

Install Varnish Cache for Apache Web Server to Speed up Website

Varnish or Varnish cache is an open source http proxy/accelerator that is put in front of webserver, for the purpose of speeding up the webserver (Apache & nginx both), it’s especially meant for webservers...

sha2 certificate

Secure your website with SSL sha2 certificate

Securing websites, especially those that saves users information, is of utmost importance. We use SSL certificates to secure communication between users & websites. SSL certificates helps in encrypting communication between user & website, so...