Wireshark is one of the best tools for penetration testers and network administrators alike. Let’s learn to install Wireshark on Ubuntu in a step-by-step manner. I’ll document the complete steps from installing to running and a few basic functionalities below.…
In this tutorial, we will discuss how to install MongoDB on Ubuntu Let’s first discuss the difference between MySQL and MongoDB. MySQL is an open-source RDBMS (Relational database Management System). It is supported by Oracle Corporation. In MySQL, the data…
In this tutorial, we will discuss how to install MariaDB on Debian/Ubuntu operating system. Talking about MariaDB, It is open-source software under the MariaDB foundation. It was developed by MySQL developers. MariaDB is an alternative to MySQL with a few…
In this tutorial, we are going to discuss how to install Apache Kafka on Ubuntu. What is Apache Kafka? Apache Kafka is an open-source stream-processing software platform developed by LinkedIn and donated to Apache Software Foundation, written in Scala and…
With a boom in back-end web development technologies, working with the right framework can make or break your web development efforts. Python Flask is one of the many good frameworks out there. Flask is a popular Python web framework that…
Tired of using the same old default hostname that comes with your Ubuntu 18.04 server, and want to change it? And you want to do it now, without having to restart? Oh yes, you can do both!! Let us see…
In this tutorial, we’ll learn how to set environment variables in Linux manually. When using Linux, the Kernel sets up the environment with default values for a lot of variables that we would need to use. This includes the default…
A DNS cache (sometimes called a DNS resolver cache) is a temporary database, maintained by a computer’s operating system, that contains records of all the recent visits and attempted visits to websites and other internet domains. You may want to…
The hosts’ file is an extremely useful albeit small text file that stores host names with associated IP addresses. It is basically a mapping from hostnames to IP addresses. Any network protocol uses this mapping to convert hostnames to numeric…
Let’s have a look at a really simple to use firewall, the UFW firewall. As a system administrator, it is our duty to make sure that the systems we work on are secured from attackers. There are multiple methods to…