As a programmer, you’ll need to make use of the git for your code versioning needs very often. And if you’re writing code in a collaborative environment, Git will take care of a majority of the work in code collaboration. Its focus is on helping code version control in a distributed setting, track changes made
How to Install Git on Ubuntu – A Step-by-Step Guide Read More »
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 IP addresses. The mapping is because the Network Layer does not work with the hostnames.
Understanding Ubuntu’s hosts file Read More »
The Debian repository already has a VirtualBox package for us to directly install on our systems. But it’s a version older than the latest official release. As of this writing, the version available in the apt sources is 5.2, while the latest one is version 6.1. So let’s see how we can go about installing
Installing the Latest VirtualBox on Debian/Ubuntu Read More »
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 incorporate in terms of network security but the most fundamental one begins with a firewall.
How To Set Up And Configure UFW Firewall in Ubuntu/Debian Read More »
The installation for MySQL on Debian will be through the APT repository. Now there is a default MySQL server installation and one that is offered by Oracle through their software repositories. We’ll take the official route by first adding Oracle’s sources first and then installing the MySQL server. How to Install MySQL on Debian/Ubuntu Before
Installing MySQL on Debian/Ubuntu Read More »
In this tutorial, we’ll cover the killall command in Linux. We recently posted a tutorial on the kill command in Linux where we covered the usage and the functionality of the command. Today, we’ll go over how to use the killall command in Linux, and understand the difference between kill and killall commands. What is
The killall Command in Linux Read More »
Changing the SSH port on Linux is pretty easy and straightforward. As it is with most of the packages that are available for any Linux distribution including Ubuntu, they come with a configuration file. Let’s modify that configuration file and update our port to something that’s not so commonly available. Change SSH Port in Linux
How To Change SSH Port in Linux and Ubuntu Read More »
PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects, having many advanced features like transaction management and transaction without read-locks, which are essential for a high performant database. Now, in this tutorial, let us look
How to Install and Configure PostgreSQL on Ubuntu Read More »
The chmod (change mode) command in Linux is used to change the access mode of a file, based on the type of user accessing the file and the type of permission associated with accessing the file. File Permissions and User Groups For understanding what the types of permissions and the types of users are, let
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In this article of the shell scripting tutorial series, we’ll learn how to create and use variables in shell scripts. We’ll walk through the different variables that we can make use of that are provided by the system for the Bourne Shell and how to create custom variables to use throughout a shell script. Variables
Shell Scripting 101: Variables in Shell Scripts Read More »