Setting the Hostname on Ubuntu 24.04

Setting the Hostname on Ubuntu 24.04

Changing the hostname of your Ubuntu 24.04 server or desktop is an important task that can help in easier identification of your system within a network. The hostname is essentially the name that your computer uses to identify itself to other devices on the network. This guide will walk you through the process of setting or changing the hostname on Ubuntu 24.04.

Read more

Enabling SSH on Ubuntu 24.04

Quick Guide to Enabling SSH on Ubuntu 24.04

Secure Shell (SSH) is an essential protocol for securely accessing networked machines remotely. SSH offers a secure channel over an unsecured network, providing strong authentication and encrypted data communications between two computers connecting over an open network such as the internet. Ubuntu 24.04, like its predecessors, supports SSH for remote administration, file transfer, and more. This guide will walk you through the process of enabling SSH on your Ubuntu 24.04 system, ensuring secure and remote management capabilities.

Read more

Setting a Static IP Address in Ubuntu 24.04 via the Command Line

Setting a Static IP Address in Ubuntu 24.04 via the Command Line

Configuring a static IP address on your Ubuntu server is essential for various reasons, such as ensuring consistent network configuration, facilitating server management, and improving network security. Ubuntu 24.04, like its predecessors, uses the Netplan utility for network configuration, which simplifies the process of setting a static IP address through YAML configuration files.

Read more

how to disable IPv6 on linux

How to disable IPv6 on Linux

Support for the Internet Protocol version 6 is available on Linux since 1996. The kernel implements this functionality, which is usually active and enabled by default on all the major distributions, via the “ipv6” module. Sometimes, for various reasons, it may be desirable to temporarily or permanently disable IPv6 networking.

Read more

Introduction to proxmox backup server web interface

Introduction to the Proxmox backup server: the web interface

Proxmox backup server is an enterprise-level solution to backup containers, virtual machines and physical hosts. In the first part of this series, we learned how to download and install the distribution. Although the system can be managed from the command line, just like any other Linux distribution, it comes also with a user-friendly, integrated web interface.

Read more

How to Setup OpenVPN Server

How to Setup OpenVPN Server

Running an VPN server on your local area network will allow outside clients to connect to your server and access the network as if they were directly connected to it. This is a common setup for many companies, which let their employees connect to the local business network remotely, so that they have access to internal resources that are only available on the local network. Linux administrators and power users may also be interested in setting up an VPN server at home, since they can then use their laptop or other portable device to connect to their home network while on the go.

Read more

Ubuntu 24.04 Firewall: A Quick Guide

Understanding and managing the firewall on your Ubuntu 24.04 system is crucial for ensuring the security and efficiency of your network. A firewall acts as a gatekeeper, controlling inbound and outbound traffic based on predetermined security rules. Ubuntu 24.04 comes equipped with ‘ufw’ (Uncomplicated Firewall), a user-friendly interface for managing iptables, the default firewall tool on Linux. Whether you’re a seasoned system administrator or a curious user, this guide will walk you through the essentials of using the ufw firewall, including installation, configuration, testing, and more.

Read more

How to Disable IPv6 on Ubuntu 24.04

Ubuntu 24.04, like its predecessors, supports IPv6 by default. However, there are times when you might need to disable IPv6, whether for compatibility reasons, testing purposes, or specific network requirements. This comprehensive guide will walk you through the steps to check if IPv6 is enabled on your system, how to disable it, and how to verify that it has been disabled.

Read more

How to show/check for open ports on Ubuntu Linux

How to show/check for open ports on Ubuntu Linux

Checking for open ports on Ubuntu Linux is an essential part of security administration. Some Linux software works by listening for incoming connections. A simple example would be a web server, which handles user requests on HTTP port 80 or HTTPS port 443 whenever someone navigates to a website. As a Linux administrator or user, it’s important to always know which ports of your system are open to the internet. Otherwise, you could be unaware of outside connections being made to your computer, which consumes bandwidth and resources, along with being a potential security vulnerability.

Read more

Allow SSH root login on Ubuntu 20.04 Focal Fossa Linux

Enable SSH root login on Ubuntu 20.04 Focal Fossa Linux

SSH (Secure Shell) is used to handle network services securely over an unsecured network. Some examples include: remote command-line, login, and remote command execution. Normally to log into SSH, it must be done as a normal user, and then you can elevate to the root user after logging in. But it is possible to bypass this behavior with a simple config edit. In this tutorial, you will learn how to enable SSH root login on Ubuntu 20.04 Server/Desktop.

Read more

Raspberry Pi Server/Viewer VNC configuration

Raspberry Pi Server/Viewer VNC configuration

If you plan to remotely administer your Raspberry Pi, then using VNC is one of the most effective ways to do so when it comes to remote desktop applications. VNC allows you to use another device to connect to the Raspberry Pi, and use your mouse and keyboard as if they were physically plugged into the device itself. The reverse is also possible, meaning that the Raspberry Pi can be used as the client device and connect to other computers remotely.

Read more