The objective of this tutorial is to learn how to identify internal and external IP address on Ubuntu 20.04 Focal Fossa Linux.
In this tutorial you will learn:
- How to check local internal IP address
- How to check external IP address
networking
Firewall – ufw status inactive on Ubuntu 20.04 Focal Fossa Linux
The objective of this tutorial is to activate the UFW firewall on Ubuntu 20.04 Focal Fossa Linux.
In this tutorial you will learn:
- How to check UFW status
- How to activate UFW
How to perform port scan on Ubuntu 20.04 Focal Fossa Linux
In this tutorial you will learn how to install the nmap port scanner on Ubuntu 20.04 Focal Fossa Linux and how to perform basic port scanning.
In this tutorial you will learn:
- How to install
namp - How to perform basic local and remote port scans
- How to scan TCP and UDP port
How to add static route with netplan on Ubuntu 20.04 Focal Fossa Linux
In this tutorial you will learn how to permanently add a static route on Ubuntu 20.04 Focal Fossa Linux using netplan.
In this tutorial you will learn:
- How to add permanent static route
- How to apply new netplan configuration
- How to check static routes from command line
How to change FQDN ( domain name ) on Ubuntu 20.04 Focal Fossa Linux
In this tutorial you will learn how to set / change server’s Fully Qualified Domain Name (FQDN) on Ubuntu 20.04 Focal Fossa Linux server or desktop.
In this tutorial you will learn:
- How to change or set FQDN via
/etc/hosts
Temporary failure resolving error on Ubuntu 20.04 Focal Fossa Linux
The following tutorial will provide you with simple to follow steps on how to resolve the Temporary failure resolving error on Ubuntu 20.04 Focal Fossa Linux
In this tutorial you will learn:
- How to check current DNS server
- How to how to internet connection
- How to query DNS name
How to create a VPN on Ubuntu 20.04 using Wireguard
Wireguard is a modern and very easy to setup VPN available on multiple operating system. The application is available in the Ubuntu 20.04 official repositories, so it is also very easy to install. Unlike other software like OpenVPN which is based on the use of ssl certificates, Wireguard is based on the use of key-pairs. In this tutorial we will see how to configure, in few easy steps, a VPN server and a client peer on the latest stable version of Ubuntu.
In this tutorial you will learn:
- How to install Wireguard on Ubuntu 20.04 Focal Fossa
- How to create public and private key pair
- How to configure the server and a client peer
- How to redirect all incoming traffic to the VPN
Wireguard VPN on Ubuntu 20.04
How to change hostname on Ubuntu 20.04 Focal Fossa Linux
In this tutorial you will learn how to permanently and without a reboot change a hostname on Ubuntu 20.04 Focal Fossa Linux.
In this tutorial you will learn:
- How to change a hostname on Ubuntu Linux
Enable SSH on Ubuntu 20.04 Focal Fossa Linux
The below guide will provide you with information on how to enable ssh on Ubuntu 20.04 Focal Fossa Server or Desktop Linux. SSH stands for secure shell which allows encrypted remote login connections between client and server over an unsecure network.
In this tutorial you will learn:
- How to install SSH daemon
- How to enable SSH daemon to start after reboot
- How to start SSH daemon server
- How to open firewall SSH port 22
- How to allow root login to SSH server
How to configure Samba Server share on Ubuntu 20.04 Focal Fossa Linux
The objective of this tutorial is to configure a basic Samba server on Ubuntu 20.04 to share user home directories as well as provide read-write anonymous access to selected directory.
There are myriads of possible other Samba configurations, however the aim of this guide is to get you started with some basics which can be later expanded to implement more features to suit your needs.
In this tutorial you will learn:
- How to install Samba server
- How to configure basic Samba share
- How to share user home directories and public anonymous directory
- How to mount Samba share on MS Windows 10
How to disable IPv6 address on Ubuntu 20.04 LTS Focal Fossa
IPv6, Internet Protocol version 6 is the most recent version of the Internet Protocol (IP). It is a communications protocol which is used for identification and location for computers on networks. Its purpose it to route traffic across the Internet. This article will show you how to temporarily or permanently disable IPv6 on Ubuntu 20.04 LTS Focal Fossa.
In this tutorial you will learn:
- How to temporarily disable IPv6
- How to permanently disable IPv6
Remote desktop sharing on Ubuntu 20.04 Focal Fossa
The following tutorial will explain how to setup client/server remote desktop sharing on Ubuntu 20.04 Focal Fossa.
In this tutorial you will learn:
- How to enable desktop screen sharing
- How to how to install remote desktop client
- How to configure your firewall to allow desktop sharing access
- How to connect to a remote desktop