Tag: Network Interface

Introduction

Just as regular visitors reach our server every day, so do others with more nefarious intentions. It is simply not reasonable to run an online service without some layer of protection. To protect against some of these attacks, Ubuntu ships with ufw (Uncomplicated Firewall). This is a tool designed to make Ubuntu firewall management as easy and user-friendly as possible. Specifically, ufw provides a cleaner interface for the core firewall tools netfilter and iptables, which, while robust, can be challenging to master.

A Fast, Modern and Secure VPN Tunnel

Objective

In this tutorial we will learn what Wireguard is, what it is used for, how to install and configure it, and lastly, how to use it to it wisely. 

When choosing a server operating system, there are a number of factors and choices that must be decided. An often talked about and referenced OS, Ubuntu, is a popular choice and offers great functionality with a vibrant and helpful community. However, if you’re unfamiliar with Ubuntu and have not worked with either the server or desktop versions, you may encounter differences in common tasks and functionality from previous operating systems you’ve worked with. Here are the top four lessons I’ve learned while running Ubuntu on a server.

localhost is a networking term; it’s the hostname for the loopback network interface of whichever server it’s said in reference to (meaning every server has a ‘localhost‘). The loopback interface bypasses any local network interface hardware, and serves as a method to connect back to the server itself. The term localhost is used often in both networking and in server administration.

Pre-Flight Check

• These instructions are intended for finding (viewing) the default zone in Firewalld on CentOS 7 via the command line.
• I’ll be working from a Liquid Web Core Managed CentOS 7 server, and I’ll be logged in as root.

Pre-Flight Check

• These instructions are intended for finding (viewing) active zones in Firewalld on CentOS 7 via the command line.
• I’ll be working from a Liquid Web Core Managed CentOS 7 server, and I’ll be logged in as root.