Posts by Xiao Guoan (Admin)

Upgrade Ubuntu 20.04 21.04 To 21.10

2 Ways to Upgrade Ubuntu 20.04/21.04 To 21.10 (GUI & Terminal)

Ubuntu 21.10, codenamed Impish Indri, is released on October 14, 2021. This tutorial is going to show you 2 ways…

How to Set Up Zimbra Open-Source Mail Server on Ubuntu 18.04

How to Set Up Zimbra Open-Source Mail Server on Ubuntu 18.04

Setting up your own email server on Linux from scratch is a long and tedious process, a pain in the…

How to Set Up Email Server with Plesk on Ubuntu 20.04

How to Set Up Email Server with Plesk on Ubuntu 20.04

Setting up your own email server on Linux from scratch is a long and tedious process, a pain in the…

Set Up SPF & DKIM with Postfix on Debian Server

Part 4: Set Up SPF & DKIM with Postfix on Debian Server

After completing part 1 and part 2, we have a working Postfix SMTP server and Dovecot IMAP server. We can…

Install Dovecot IMAP server

Part 2: Install Dovecot IMAP server on Debian & Enable TLS Encryption

This is part 2 of building your own secure email server on Debian from scratch tutorial series. In part 1,…

Build An Email Server From Scratch on Debian

Build Email Server From Scratch on Debian – Basic Postfix Setup

Why run your own email server? Perhaps you have a website, which needs to send emails to users, or maybe…

postfix smtp multiple instance with IP rotation

Postfix SMTP Multiple Instances with IP Rotation on a Single VPS

This tutorial is going to show you how to set up multiple instances of Postfix SMTP server with IP rotation…

Upgrade Debian 10 Buster to Debian 11 Bullseye From Command Line

Upgrade Debian 10 Buster to Debian 11 Bullseye From Command Line

Debian 11, codenamed Bullseye, was released on August 14, 2021. This tutorial is going to show you how to upgrade…

install filerun ubuntu 20.04

How to Install FileRun on Ubuntu 20.04 with Apache/Nginx

fThis tutorial will be showing you how to install FileRun on Ubuntu 20.04 LTS with Apache/Nginx web server. FileRun is…

postfix smtp relay centos rocky linux

How to Set Up Postfix SMTP Relay on CentOS/Rocky Linux with Sendinblue

This tutorial is going to show you how to set up Postfix SMTP relay with Sendinblue on CentOS/Rocky Linux. Postfix…

migrate centos 8 to rocky linux 8 alma linux 8

How to Migrate From CentOS 8 to Rocky Linux 8/Alma Linux 8

As you may already know, Red Hat decided to abandon the vanilla CentOS 8 project, which will reach end-of-life on…

create linux vps server kamatera

How to Create a Linux VPS Server on Kamatera

This article is going to explain how to create a Linux VPS (Virtual Private Server) on Kamatera, so you can…

Apache Jmeter test and report information

How to Use Apache JMeter to Load Test Web Applications

Apache JMeter is an open-source load testing tool, available for Linux, macOS, and Windows. In a previous tutorial, we explained…

set up tegola vector tile server ubuntu 20.04

How to Set Up Tegola Vector Tile Server on Ubuntu 20.04 for OpenStreetMap

Tegola is an open-source vector tile server for OpenStreetMap. Previously we explained the process of setting up OSM tile server…

Set Up Postfix SMTP Relay on Debian with Sendinblue

How to Set Up Postfix SMTP Relay on Debian with Sendinblue

This tutorial is going to show you how to set up Postfix SMTP relay with Sendinblue on Debian. Postfix is…

Linux Server Performance Monitoring with Netdata

Linux Server Performance Monitoring with Netdata

Netdata is an open-source real-time Linux server performance monitoring tool with a beautiful web front-end. It allows you to monitor…

how to fix common Nginx errors

How to Fix Common Nginx Web Server Errors

Nginx is a very popular web server these days. This article will show you some common errors when running an…

megasync linux client

How to Install Mega.nz Cloud Drive on Ubuntu – Free 20GB Storage

This tutorial is going to show you how to install MEGA.nz cloud drive on Ubuntu desktop and server. MEGA.nz is…

Set Up Unbound DNS Resolver on Ubuntu 20.04 Server

Set Up Unbound DNS Resolver on Ubuntu 20.04 Server

This tutorial will be showing you how to set up a local DNS resolver on Ubuntu 20.04 with Unbound. A…

How to Install Syncthing on Linux Mint

How to Install Syncthing on Linux Mint 20

This tutorial will show you how to install Syncthing on Linux Mint 20. Syncthing is a free, peer-to-peer continuous file…