Posts by Guoan Xiao (Admin)

Set Up Mail Proxy Server

Set Up Mail Proxy Server on Debian/Ubuntu/CentOS/RockyLinux

In previous tutorials, we discussed how to set up a mail server from scratch on Linux (Ubuntu version, CentOS/RHEL version),…

Install Magento eCommerce Site on Ubuntu 22.04 Server

Install Magento eCommerce Site on Ubuntu 22.04 Server with Nginx

This tutorial is going to show you how to install Magento on Ubuntu 22.04 with Nginx, MySQL, and PHP8.1 (LEMP…

How to Install Mastodon on Debian

How to Install Mastodon on Debian 11 Server

This tutorial is going to show you how to install Mastodon on Debian 11 server. Mastodon is an open-source decentralized…

ssh two factor authentication ubuntu

Set Up SSH Two-Factor Authentication (2FA) on Debian 11 Server

This tutorial will show you how to set up SSH two-factor authentication on Debian server using the well-known Google Authenticator.…

mastodon login page

How to Install Mastodon on Ubuntu 22.04/20.04 Server

This tutorial is going to show you how to install Mastodon on Ubuntu 22.04/20.04 server. Mastodon is an open-source decentralized…

encrypt usb drive with veracrypt

Create Hidden Encrypted Volume on USB Drive Using VeraCrypt

In this tutorial, we are going to learn how to encrypt a USB drive using the free and open-source VeraCrypt…

install-discourse-forum-on-debian

Install Discourse Forum Software on Debian 11 Without Docker

This tutorial is going to show you how to install Discourse on Debian 11 server. Created by StackExchange founder Jeff…

ntopng traffic flow analysis

How to Install ntopng Traffic Analysis Tool on Ubuntu Server

ntopng (ntop next generation) is a high-speed web-based traffic analysis and flow collection tool. This tutorial is going to show…

PostfixAdmin Virtual Mailboxes on Debian Mail Server PostgreSQL

Part 3: Set Up PostfixAdmin Virtual Mailboxes on Debian Mail Server (PostgreSQL)

In previous articles, we discussed how to set up your own mail server on Debian from scratch. In part 1…

ldap account manager login page

How to Set Up OpenLDAP Server on Debian 11

In this tutorial, we are going to take a look at installing and Configuring OpenLDAP server on Debian 11. We…

How to Easily Transfer Old Emails to Your New Email Server

How to Easily Transfer Old Emails to Your New Email Server

In previous article, we discussed 5 best business email hosting solutions. This tutorial is going to show you how to…

About Thunderbird

How to Encrypt Emails with OpenPGP in Thunderbird (2022)

In previous parts of the GPG tutorial series, I explained how GPG encryption works. In this tutorial, you will learn…

A Practical GPG Guide Part 3 Encrypt and Decrypt Message

A Practical GPG Guide Part 3: Encrypt and Decrypt Files

In part 2, I explained how to upload a public key to a key server and import public key to…

A Practical Guide to GPG Part 2 Public Key Management

A Practical Guide to GPG Part 2: Public Key Management

In part 1 of this GPG tutorial series, you learned the benefits of GPG and generated your public/private key pair.…

A Practical Guide to GPG Generate Your PublicPrivate Key Pair

A Practical Guide to GPG Part 1: Generate Your Public/Private Key Pair

This tutorial series will teach you how to use GPG (Gnu Privacy Guard) in the Linux terminal, so you will…

Install NextCloud on Ubuntu 22.04 (Nginx + PostgreSQL + PHP8)

Install NextCloud on Ubuntu 22.04 (Nginx + PostgreSQL + PHP8)

This tutorial will be showing you how to install NextCloud on Ubuntu 22.04 LTS with Nginx web server. What’s NextCloud?…

install passbolt ubuntu self-hosted password manager

How to Install Passbolt with PostgreSQL on Ubuntu 22.04 Server

Passbolt is an open-source self-hosted password manager, which allows you to securely store and share login credentials of website, router…

Protect Your Eyes From Computer Screen with IRIS

Protect Your Eyes From Computer Screen Harm with IRIS

Iris is an eye protection software available for Linux, macOS, Windows, ChromeOS, Android, iOS, and Windows Phone. This tutorial will…

2 Ways to Upgrade Ubuntu 21.10 To Ubuntu 22.04

2 Ways to Upgrade Ubuntu 21.10 To Ubuntu 22.04 (Graphical & Terminal)

Ubuntu 22.04 Jammy Jellyfish will be released on April 21, 2022. This tutorial is going to show you 2 ways…

2 Ways to Upgrade Ubuntu 18.04 To Ubuntu 20.04

2 Ways to Upgrade Ubuntu 20.04 To Ubuntu 22.04 (Graphical & Terminal)

Ubuntu 22.04 Jammy Jellyfish will be released on April 21, 2022. This tutorial is going to show you 2 ways…