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Configuring an Iptables Firewall: Basic Rules and Commands

Introduction Iptables​ is a command-line ​firewall ​utility. This means that it is software that allows you to configure a firewall on your system. It is typically available by default on ​Linux​ systems. In this guide, we will ​discuss some of the common rules and commands that go with the iptables​ firewall. Whenever a connection tries to establish itself with your …

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The Basics of UFW: Learning the Essential Firewall Commands 

Introduction UFW stands for uncomplicated firewall. It is a frontend platform that enables you to easily manage your firewall functions and commands. You get UFW as a default option with your Ubuntu server. Maximizing the potential of the commands and functions of the firewall can be difficult if you are not already familiar with the tool. Our goal is to …

SSH Key

Configuring Your Linux Server to Use SSH Key-Based Authentication

SSH on a Linux Server SSH, also known as secure shell, is a protocol that can be used to connect and communicate with a server. You can connect to your Linux server for a terminal session using this encrypted protocol. If you are using an OpenSSH server, there are primarily two different ways you can go about the authentication process. …

SSH keys

How To Use SSH to Connect to a Remote Server in Ubuntu

What is SSH? SSH means Secure Shell. With SSH you can access remote machines in a secure way since the connection is encrypted. With the ssh command from the Linux terminal, we can connect to remote Linux servers and work as if it were our computer. At the end of this tutorial, you should have a full understanding of how …

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Host your own Git Repositories with GitLab

In this post, I am going to demonstrate the installation of GitLab. With GitLab, we can host our own repositories at a central place with the ease of the Git features. GitLab is the first single application for all stages of the DevOps lifecycle. Only GitLab enables Concurrent DevOps, unlocking organizations from the constraints of the toolchain. In addition, GitLab …