How to Install EteSync 2.0 (Etebase) Server on Ubuntu

This tutorial is going to show you how to install EteSync server on Ubuntu. EteSync is an open-source, end-to-end encryption solution for syncing your calendars, contacts, tasks and notes. EteSync Features The latest version is EteSync 2.0, which features End-to-end encryption. No separate encryption password needed. You just need one password that’s used for both…


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How to Install EteSync 2.0 (Etebase) Server on Ubuntu

How To Install and Use ProtonVPN on Desktop Linux

ProtonVPN is a VPN service provider based in Switzerland. In this article, I’m going to show you how to use ProtonVPN on desktop Linux, including Debian, Ubuntu, Linux Mint, Elementary OS, Fedora, CentOS, Arch Linux, and OpenSUSE. Note: If you are a power user, you may want to run your own VPN server. Why You…


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How To Install and Use ProtonVPN on Desktop Linux

Set Up ParseDMARC on Ubuntu 20.04 to Analyze DMARC Reports

ParseDMARC is an open-source, self-hosted DMARC report analyzer. For those who don’t know, DMARC is an email security standard that can protect your domain name from email spoofing and also identify incoming spoofed emails to protect end users. In a previous article, we discussed how to create DMARC DNS record for your domain name and…


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Set Up ParseDMARC on Ubuntu 20.04 to Analyze DMARC Reports

Install Akaunting Self-Hosted Accounting Software on Ubuntu 20.04

This tutorial will be showing you how to install Akaunting on Ubuntu 20.04 with Apache or Nginx web server. Akaunting is a free, open-source self-hostable accounting software. You can use it for tracking personal finance or small business accounting. Akaunting Features Completely Free and open source. Easy-to-use web-based Interface. See your financials online anytime, anywhere…


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Install Akaunting Self-Hosted Accounting Software on Ubuntu 20.04

Setting Up Amavis and ClamAV on CentOS 8/RHEL 8 Mail Server

This is part 10 in the CentOS 8/RHEL 8 mail server from scratch tutorial series. In this article, I will show you how to use Amavis and ClamAV to scan viruses in email messages. Amavis (A Mail Virus Scanner) is a high-performance interface between a message transfer agent (MTA) such as Postfix and content filters.…


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Setting Up Amavis and ClamAV on CentOS 8/RHEL 8 Mail Server

Set Up BIND Authoritative DNS Server on CentOS 8/RHEL 8

This tutorial will be showing you how to set up and run your own authoritative name server on CentOS 8/RHEL 8 with the widely-used BIND 9 software. What’s An Authoritative DNS Server? If you own a domain name and want your own DNS server to handle name resolution for your domain name instead of using…


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Set Up BIND Authoritative DNS Server on CentOS 8/RHEL 8

Set Up SMTP Relay Between 2 Postfix SMTP Servers on CentOS/RHEL

Previously we discussed setting up Postfix SMTP relay with mailjet, which is useful when you have to use a commercial SMTP relay service. This tutorial will be showing you how to set up SMTP relay between 2 Postfix SMTP servers on CentOS/RHEL. Use Case Let’s say there are two servers: server A and server B.…


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Set Up SMTP Relay Between 2 Postfix SMTP Servers on CentOS/RHEL

How to Configure User Quota in Dovecot & PostfixAdmin

This tutorial is going to show you how to configure user quota in Dovecot and PostfixAdmin. Prerequisites To follow this tutorial, it’s assumed that Postfix SMTP server and Dovecot IMAP server have been installed on your mail server. If not, please use the following tutorials. Ubuntu Setting up a basic Postfix SMTP server on Ubuntu…


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How to Configure User Quota in Dovecot & PostfixAdmin

Run Your Own DNS over HTTPS (DoH) Resolver on Ubuntu with DNSdist

This tutorial will be showing you how to set up your own DNS over HTTPS (DoH) resolver on Ubuntu with DNSdist, so your DNS queries can be encrypted and protected from prying eyes. What is DNS over HTTPS and Why It’s Important DNS (Domain Name System) is responsible for translating domain names to IP addresses.…


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Run Your Own DNS over HTTPS (DoH) Resolver on Ubuntu with DNSdist

How to Quickly Set Up a Mail Server on Debian 10 Buster With Modoboa

Setting up a mail server on Linux from scratch is a pain in the neck. This tutorial is going to show you how to quickly set up your own email server on Debian 10 Buster with Modoboa, saving you lots of time and headaches. Modoboa is a free and open-source mail hosting and management platform…


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How to Quickly Set Up a Mail Server on Debian 10 Buster With Modoboa

Install LibreELEC on Raspberry Pi to Replace Your Smart TV OS

Don’t like ads on your smart TV? This tutorial is going to show you how to replace your TV OS with LibreELEC (Embedded Linux Entertainment Center) and a Raspberry Pi. LibreELEC is a free open-source Linux distribution for embedded devices used as home media centers. It is a fork of the now-discontinued OpenELEC project, which…


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Install LibreELEC on Raspberry Pi to Replace Your Smart TV OS

How to Quickly Set Up a Mail Server on Ubuntu 20.04 with Modoboa

This tutorial is going to show you how to quickly set up your own email server on Ubuntu 20.04 with Modoboa, which is a free and open-source mail hosting and management platform designed to work with Postfix SMTP server and Dovecot IMAP/POP3 server. Modoboa is written in Python, released under the terms of ISC license.…


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How to Quickly Set Up a Mail Server on Ubuntu 20.04 with Modoboa

Run Ocserv VPN Server & Apache/Nginx on the Same Box with HAProxy

This tutorial will be showing you how to run OpenConnect VPN server (ocserv) and Apache/Nginx on the same box with HAProxy. OpenConnect (ocserv) is an open-source implementation of the Cisco AnyConnect VPN protocol. Prerequisites To follow this tutorial, it’s assumed that you have already set up an OpenConnect VPN server with Let’s Encrypt TLS server…


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Run Ocserv VPN Server & Apache/Nginx on the Same Box with HAProxy

2 Ways to Upgrade Ubuntu 20.04 To Ubuntu 20.10 [GUI & Terminal]

Ubuntu 20.10, codenamed Groovy Gorrila, will be released on October 22, 2020. This tutorial will be showing you 2 ways to upgrade Ubuntu 20.04 to Ubuntu 20.10. The first method uses the graphical update manager and the second method uses the command line. Usually, you use the graphical update manager to upgrade Ubuntu desktop and…


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2 Ways to Upgrade Ubuntu 20.04 To Ubuntu 20.10 [GUI & Terminal]

How to Install qBittorrent on CentOS 8/RHEL 8 Desktop & Server

This tutorial will be showing you how to install qBittorrent on CentOS 8/RHEL 8. qBittorrent is a free, open-source, fast and lightweight P2P BitTorrent client written in C++ / Qt, available for Linux, FreeBSD, MacOS and Windows. It aims to provide an open-source alternative to uTorrent, which is a very popular BitTorrent client among Windows…


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How to Install qBittorrent on CentOS 8/RHEL 8 Desktop & Server

How to Easily Set up a Full-Fledged Mail Server on Ubuntu 20.04 with Citadel

Setting up your own email server on Linux from scratch is a long and tedious process, a pain in the butt if you are not an advanced user. This tutorial will be showing you how to use Citadel to quickly set up a full-featured mail server on Ubuntu 20.04, saving you lots of time and…


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How to Easily Set up a Full-Fledged Mail Server on Ubuntu 20.04 with Citadel

How to Install NZBGet Usenet Client on Ubuntu & Linux Mint

NZBGet is a free open-source Usenet client for downloading binary content (image, audio, video, e-book, etc.) on Usenet. It’s cross-platform, available for Linux, macOS, Windows, BSD and Android. This tutorial is going to show you how to install NZBGet on Ubuntu and Linux Mint. NZBGet Feature Super lightweight and fast (consumes about 1.5MB RAM on…


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How to Install NZBGet Usenet Client on Ubuntu & Linux Mint

How to Install SABnzbd Usenet Client on Debian Server/Desktop

SABnzbd is a free open-source and web-based Usenet client for downloading binary content (image, audio, video, e-book, etc.) on Usenet. It’s cross-platform, available for Linux, BSD, macOS, UNIX, Windows, Synology, QNAP, and so on. This tutorial is going to show you how to install SABnzbd on Debian. SABnzbd Features You can access it from anywhere…


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How to Install SABnzbd Usenet Client on Debian Server/Desktop

How to Install Jellyfin Media Server on Debian 10 Buster

This tutorial will be showing you how to install Jellyfin media server on Debian 10 server/desktop. Jellyfin is a free, open-source application that allows you to organize your movies, TV shows, music and photos in one beautiful interface and stream those media files on your PC, tablet, phone, TV, Roku, etc on the network or…


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How to Install Jellyfin Media Server on Debian 10 Buster

How to Install Jellyfin Media Server on Ubuntu 20.04 LTS Server/Desktop

This tutorial will be showing you how to install Jellyfin media server on Ubuntu 20.04 LTS server/desktop. Jellyfin is a free, open-source application that allows you to organize your movies, TV shows, music and photos in one beautiful interface and stream those media files on your PC, tablet, phone, TV, Roku, etc on the network…


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How to Install Jellyfin Media Server on Ubuntu 20.04 LTS Server/Desktop

Set Up Postfix Send-Only SMTP Server on CentOS 8

In this article, I will show you how to set up Postfix as a send-only SMTP server on CentOS 8. I will first show you how to do it for a single domain, then you can apply the steps for multiple domains if you need to. Use Case You have a website/web application that needs…


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Set Up Postfix Send-Only SMTP Server on CentOS 8

How to Install AVideo/YouPHPTube on CentOS 8 Server

This tutorial is going to show you how to run your own video-sharing website with AVideo (formerly known as YouPHPTube) on CentOS 8. AVideo is an open-source, self-hosted alternative to video-sharing websites like YouTube, Vimeo, etc. With AVideo, users can upload videos to your server and share it with the Internet. AVideo Features Unlimited and…


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How to Install AVideo/YouPHPTube on CentOS 8 Server

How to Install AVideo/YouPHPTube on Ubuntu 20.04 Server

This tutorial is going to show you how to run your own video-sharing website with AVideo (formerly YouPHPTube) on Ubuntu 20.04. AVideo is an open-source, self-hosted alternative to video-sharing websites like YouTube, Vimeo, etc. With AVideo, users can upload videos to your server and share it with the Internet. AVideo Features Unlimited and simultaneous live…


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How to Install AVideo/YouPHPTube on Ubuntu 20.04 Server

How to Set Up OSM Nominatim Geocoding Server on Debian 10

In a previous tutorial, I explained the process of building your own OSM tile server on Debian 10. This tutorial is going to show you how to set up Nominatim Geocoding server on Debian 10. Nominatim provides search functionality for OpenStreetMap, so if a visitor enters an address in a search box, the latitude/longitude location…


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How to Set Up OSM Nominatim Geocoding Server on Debian 10

Set Up OSM Nominatim Geocoding Server on Ubuntu 20.04

In a previous tutorial, I explained the process of building your own OSM tile server on Ubuntu 20.04. This tutorial is going to show you how to set up Nominatim Geocoding server on Ubuntu 20.04. Nominatim provides search functionality for OpenStreetMap, so if a visitor enters an address in a search box, the latitude/longitude location…


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Set Up OSM Nominatim Geocoding Server on Ubuntu 20.04

How to Install Passbolt Password Manager on Ubuntu 20.04 Server

Passbolt is an open-source self-hosted password manager, which allows you to securely store and share login credentials of website, router password, Wi-Fi password, etc. This tutorial will be showing you how to install Passbolt Community Edition (CE) on Ubuntu 20.04 with Apache or Nginx web server. Passbolt Features Free & open source Passwords are encrypted…


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How to Install Passbolt Password Manager on Ubuntu 20.04 Server

Install Mautic Self-Hosted Email Marketing Platform on Ubuntu 20.04 Server

This tutorial will be showing you how to set up Mautic email marketing platform on Ubuntu 20.04 with Apache or Nginx web server. Mautic is a free open source alternative to commercial email service providers like MailChimp. Key features of Mautic includes: Lead nurturing and tracking Marketing campaigns Dripflow programs Create Landing pages Social media…


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Install Mautic Self-Hosted Email Marketing Platform on Ubuntu 20.04 Server

How to Install Proxmox Virtual Environment on a Dedicated Server

This tutorial is going to show you how to install Proxmox VE on a dedicated server. Proxmox VE (Virtual Environment) is an open-source virtual platform based on Debian. It allows you to easily create virtual machines and containers in a graphical web-based interface. Proxmox Features web-based administration interface. Full virtualization (KVM) Supports containers live migration:…


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How to Install Proxmox Virtual Environment on a Dedicated Server

Install Matomo Web Analytics (Piwik) on Ubuntu 20.04 with Apache/Nginx

This tutorial will be showing you how to install Matomo web analytics (formerly known as Piwik) on Ubuntu 20.04 with Apache or Nginx web server. Matomo is an open-source alternative to Google Analytics, which is the most widely-used web analytics software. What’s Web Analytics? Web analytics software is used by websites to know how many…


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Install Matomo Web Analytics (Piwik) on Ubuntu 20.04 with Apache/Nginx

Reduce PDF Size in Linux (Step-by-Step Guide)

If you are tensed about the size and quality of your pdf file that you have to save and if you don’t know about the best solution to this problem, then start reading this post without a second thought because this four-minute post will tell you all about the steps and the tool that can…


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Reduce PDF Size in Linux (Step-by-Step Guide)

Setting Up Amavis and ClamAV on Ubuntu Mail Server

This is part 10 in the Ubuntu mail server from scratch tutorial series. In this article, I will show you how to use Amavis and ClamAV to scan viruses in email messages. Amavis (A Mail Virus Scanner) is a high-performance interface between a message transfer agent (MTA) such as Postfix and content filters. A content…


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Setting Up Amavis and ClamAV on Ubuntu Mail Server

How to Install Socioboard on Ubuntu 20.04 - Social Media Lead Generation Toolkit

This tutorial will be showing you how to install Socioboard on Ubuntu 20.04 with Apache or Nginx web server. Socioboard is an open-source, self-hosted social media lead generation toolkit for businesses. Socioboard provides hosted service, but if you like to self-host the software on your own server, you can follow the instructions below. Socioboard Features…


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How to Install Socioboard on Ubuntu 20.04 - Social Media Lead Generation Toolkit

A Guide to the Endless OS for Linux

Many find the idea of switching to Linux intimidating. Let’s face it: despite being the most-used operating system for servers, it’s yet to see major commercial and consumer use. This is mostly because there still aren’t many off-the-shelf computers that have Linux pre-installed, and most people don’t want to deal with the hassle of installing…


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A Guide to the Endless OS for Linux

How to Install InvoiceNinja on Ubuntu 20.04 Server with Apache/Nginx

This tutorial will be showing you how to install InvoiceNinja on Ubuntu 20.04 with Apache or Nginx web server. InvoiceNinja is an open-source, self-hosted invoice software, a low-cost alternative to commercial online invoice platforms such as Freshbooks. InvoiceNinja provides hosted invoice service, but if you like to self host the software, you can follow the…


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How to Install InvoiceNinja on Ubuntu 20.04 Server with Apache/Nginx

Set Up Apache Guacamole Remote Desktop on Debian 10 Buster

This tutorial will be showing you how to set up Guacamole remote desktop on Debian 10 server. Guacamole is a free, open-source remote desktop gateway developed by the Apache software foundation. Guacamole Features It allows you to access your remote desktop from a web browser. No other software needs to be installed on the client-side.…


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Set Up Apache Guacamole Remote Desktop on Debian 10 Buster

Set Up Apache Guacamole Remote Desktop on Ubuntu 20.04 Server

This tutorial will be showing you how to set up Guacamole remote desktop on Ubuntu 20.04 server. Guacamole is a free, open-source remote desktop gateway developed by the Apache software foundation. Guacamole Features It allows you to access your remote desktop from a web browser. No other software needs to be installed on the client-side.…


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Set Up Apache Guacamole Remote Desktop on Ubuntu 20.04 Server

How to Easily Set Up a Mail Server on Debian 9 Stretch with iRedMail

Setting up your own email server on Linux from scratch is a tedious process, a pain in the butt if you are not a skilled server admin. This tutorial will be showing you how to use iRedMail to quickly set up a full-featured mail server on Debian 9, saving you lots of time and headaches.…


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How to Easily Set Up a Mail Server on Debian 9 Stretch with iRedMail

How to Deal With the Microsoft Outlook IP Blacklist

In previous tutorials, I explained how you can easily set up your own mail server using iRedMail or Modoboa, and I shared some tips on getting your IP address removed from blacklists. However, some folks have a hard time getting off the Microsoft Outlook IP blacklist, which is used by outlook.com, hotmail.com, live.com, and msn.com…


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How to Deal With the Microsoft Outlook IP Blacklist

How to Easily Set Up a Full-Featured Mail Server on CentOS 7 with iRedMail

Setting up your own email server on Linux from scratch is a long and tedious process, a pain in the butt if you are not an advanced user. This tutorial will be showing you how to use iRedMail to quickly set up a full-featured mail server on CentOS 7, saving you lots of time and…


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How to Easily Set Up a Full-Featured Mail Server on CentOS 7 with iRedMail

Set Up OpenStreetMap (OSM) Tile Server on Debian 10 Buster

OpenStreetMap (OSM) is a user-contributed, freely-editable world map. You can think of it as an open-source and self-hosted alternative to Google Maps. This tutorial will show you how to build your own OpenStreetMap tile server on Debian 10 so you don’t have to use a proprietary map service. OpenStreetMap Features OpenStreetMap data covers the whole…


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Set Up OpenStreetMap (OSM) Tile Server on Debian 10 Buster

How to Create DNS Records in NameCheap

NameCheap is my recommended domain registrar, because the price is low and they give whois privacy protection free for life. This tutorial is going to show you how to create common DNS records in NameCheap. This is primarily for users who needs to set up a mail server. Create DNS Records in NameCheap To create…


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How to Create DNS Records in NameCheap

Install Nginx Amplify on CentOS 8/RHEL 8 to Monitor LEMP Peformance

Nginx Amplify is a free, flexible and powerful way to analyze the load and performance of Nginx and Nginx Plus web servers. It’s easy to set up and use. Nginx Amplify also comes with MySQL/MariaDB, PHP-FPM plugins so you can monitor a full LEMP stack application. (LEMP stands for Linux, Nginx, MySQL/MariaDB, PHP.) Nginx Amplify…


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Install Nginx Amplify on CentOS 8/RHEL 8 to Monitor LEMP Peformance

7 Effective Tips for Blocking Email Spam with Postfix on CentOS/RHEL

In this tutorial, I’d like to share with you my 7 tips for blocking email spam with Postfix SMTP server on CentOS/RHEL. Over the last four years of running my own email server, I received lots of spam, aka unsolicited commercial email. Spam exists because it’s so cheap to send a large volume of emails…


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7 Effective Tips for Blocking Email Spam with Postfix on CentOS/RHEL

How to Easily Set Up a DNS over TLS Resolver with Nginx on Ubuntu

This tutorial will be showing you how to set up your own DNS over TLS (DoT) resolver on Ubuntu with Nginx, so your DNS queries can be encrypted and protected from prying eyes. What is DNS over TLS and Why It’s Important DNS (Domain Name System) is responsible for translating domain names to IP addresses.…


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How to Easily Set Up a DNS over TLS Resolver with Nginx on Ubuntu

How to Install Plex Media Server on Ubuntu 20.04 LTS Server/Desktop

This tutorial will be showing you how to install Plex media server on Ubuntu 20.04 LTS server/desktop. Plex is a free piece of software that allows you to organize your movies, TV shows, music and photos in one beautiful interface and stream those media files on your PC, tablet, phone, TV, Roku, etc on the…


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How to Install Plex Media Server on Ubuntu 20.04 LTS Server/Desktop

Set Up Response Policy Zone (RPZ) in BIND Resolver on Debian/Ubuntu

This tutorial will be showing you how to override public DNS records in your BIND DNS resolver with response policy zone (RPZ) on Debian/Ubuntu. What is Response Policy Zone? Response policy zone (RPZ) allows a DNS resolver to modify DNS records. It was originally developed as a way to block access to dangerous websites. For…


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Set Up Response Policy Zone (RPZ) in BIND Resolver on Debian/Ubuntu

Set Up Response Policy Zone (RPZ) in BIND Resolver on CentOS/RHEL

This tutorial will be showing you how to override public DNS records in your BIND DNS resolver with response policy zone (RPZ) on CentOS/RHEL. What is Response Policy Zone? Response policy zone (RPZ) allows a DNS resolver to modify DNS records. It was originally developed as a way to block access to dangerous websites. For…


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Set Up Response Policy Zone (RPZ) in BIND Resolver on CentOS/RHEL

How to Set Up OpenStreetMap Tile Server on Ubuntu 20.04

OpenStreetMap (OSM) is a user-contributed, freely-editable world map. You can think of it as an open-source and self-hosted alternative to Google Maps. This tutorial will show you how to build your own OpenStreetMap tile server on Ubuntu 20.04 so you don’t have to use a proprietary map service. OpenStreetMap Features OpenStreetMap data covers the whole…


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How to Set Up OpenStreetMap Tile Server on Ubuntu 20.04

Set Up Your Own WireGuard VPN Server on CentOS

This tutorial is going to show you how to set up your own WireGuard VPN server on CentOS. WireGuard is made specifically for the Linux kernel. It runs inside the Linux kernel and allows you to create fast, modern, and secure VPN tunnel. Features of WireGuard VPN Lightweight and super fast speed, blowing OpenVPN out…


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Set Up Your Own WireGuard VPN Server on CentOS

Set Up Your Own WireGuard VPN Server on Debian

This tutorial is going to show you how to set up your own WireGuard VPN server on Debian. WireGuard is made specifically for the Linux kernel. It runs inside the Linux kernel and allows you to create fast, modern, and secure VPN tunnel. Features of WireGuard VPN Lightweight and super fast speed, blowing OpenVPN out…


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Set Up Your Own WireGuard VPN Server on Debian

Set Up Your Own WireGuard VPN Server on Ubuntu

This tutorial is going to show you how to set up your own WireGuard VPN server on Ubuntu. WireGuard is made specifically for the Linux kernel. It runs inside the Linux kernel and allows you to create fast, modern, and secure VPN tunnel. Features of WireGuard VPN Lightweight and super fast speed, blowing OpenVPN out…


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Set Up Your Own WireGuard VPN Server on Ubuntu

How to Install phpMyAdmin with Nginx (LEMP) on Ubuntu 20.04 LTS

This tutorial will be showing you how to install phpMyAdmin with Nginx, MariaDB and PHP7.4 (LEMP) on Ubuntu 20.04. phpMyAdmin is a free and open-source web-based database management tool written in PHP. It provides a graphical web interface for users to manage MySQL or MariaDB database. phpMyAdmin allows administrators to: browse through databases and tables;…


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How to Install phpMyAdmin with Nginx (LEMP) on Ubuntu 20.04 LTS

How to Easily Set Up a Full-Featured Mail Server on CentOS 8 with iRedMail

Setting up your own email server on Linux from scratch is a pain in the butt if you are not an advanced user. This tutorial will be showing you how to use iRedMail to quickly set up a full-featured mail server on CentOS 8, saving you lots of time and headaches. What is iRedMail? iRedMail…


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How to Easily Set Up a Full-Featured Mail Server on CentOS 8 with iRedMail

How to Install Deluge BitTorrent Client on Ubuntu 20.04 Desktop/Server

This tutorial will be showing you how to install Deluge on Ubuntu 20.04 desktop and server. Deluge is a free, open-source (GPL3) and lightweight BitTorrent client, available for Linux, FreeBSD, macOS and Windows. It has a rich collection of plugins that you can install to extend its functionality. For example, you can install the streaming…


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How to Install Deluge BitTorrent Client on Ubuntu 20.04 Desktop/Server

How to Install Google Chrome Browser on Ubuntu 20.04 From Command Line

This tutorial is going to show you how to install Google Chrome on Ubuntu 20.04 LTS Focal Fossa. The Ubuntu software app in 20.04 doesn’t support installing local deb packages anymore, so we have to use the command line to install deb packages. Personally I don’t think this is a good direction for Ubuntu. In…


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How to Install Google Chrome Browser on Ubuntu 20.04 From Command Line

How to Install uTorrent in Ubuntu 20.04

This tutorial will be showing you how to install uTorrent in Ubuntu 20.04. It also includes instructions for auto start uTorrent server on Ubuntu and how to set up a reverse proxy using Nginx/Apache web server, for those who want to access uTorrent via a domain name. The Linux native uTorrent client is a web-based…


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How to Install uTorrent in Ubuntu 20.04

Mail Server IP Blacklist Removal Tips to Improve Email Deliverability

In previous tutorials, I explained how you can easily set up your own mail server using iRedMail or Modoboa. This guide is going to show you show to check your mail server’s IP reputation and give you some IP blacklist removal tips. Over the years of operating mail servers, I have seen many occasions of…


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Mail Server IP Blacklist Removal Tips to Improve Email Deliverability

How to Install Unity Desktop Environment on Ubuntu 20.04 LTS

This tutorial shows you how to install Unity Desktop on Ubuntu 20.04 LTS. We will also restore the nice-looking Unity login screen, in case you don’t like the GNOME login screen. I personally don’t like GNOME. Here’s why. There’s too much movement when switching between programs, which is distracting. GNOME is trying to remove functionalities…


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How to Install Unity Desktop Environment on Ubuntu 20.04 LTS

How to Install phpMyAdmin with Apache (LAMP) on Ubuntu 20.04

This tutorial will be showing you how to install phpMyAdmin with Apache, MariaDB, PHP7.4 (LAMP stack) on Ubuntu 20.04 LTS. phpMyAdmin is a free and open-source web-based database management tool written in PHP. It provides a graphical web interface for users to manage MySQL or MariaDB database. We are also going to learn how to…


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How to Install phpMyAdmin with Apache (LAMP) on Ubuntu 20.04

Install NextCloud on Ubuntu 20.04 with Apache (LAMP Stack)

This tutorial will be showing you how to install NextCloud on Ubuntu 20.04 LTS with Apache web server. What’s NextCloud? NextCloud is a free open-source self-hosted cloud storage solution. It’s functionally similar to Dropbox. Proprietary cloud storage solutions (Dropbox, Google Drive, etc) are convenient, but at a price: they can be used to collect personal…


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Install NextCloud on Ubuntu 20.04 with Apache (LAMP Stack)

Install NextCloud on Ubuntu 20.04 with Nginx (LEMP Stack)

This tutorial will be showing you how to install NextCloud on Ubuntu 20.04 LTS with Nginx web server. What’s NextCloud? NextCloud is a free open-source self-hosted cloud storage solution. It’s functionally similar to Dropbox. Proprietary cloud storage solutions (Dropbox, Google Drive, etc) are convenient, but at a price: they can be used to collect personal…


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Install NextCloud on Ubuntu 20.04 with Nginx (LEMP Stack)

Install Roundcube Webmail on Ubuntu 20.04 with Apache/Nginx

Roundcube is a free and open source webmail client written in PHP. A webmail is a mail client in your browser, which means instead of reading and sending emails from a desktop mail client like Mozilla Thunderbird, you can access your email from a web browser. Roundcube functionality includes MIME support, address book, folder management,…


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Install Roundcube Webmail on Ubuntu 20.04 with Apache/Nginx

Install Mailtrain v1.24 on Ubuntu 20.04 Server Without Docker

This tutorial will show you how to install Mailtrain on Ubuntu 20.04 without Docker. Mailtrain is an open-source self-hosted newsletter application, an alternative to commercial email service providers like Mailchimp. You can use Mailtrain to send newsletters to your email subscribers via your own email server or by using any SMTP relay service (Mailjet, SendGrid,…


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Install Mailtrain v1.24 on Ubuntu 20.04 Server Without Docker

How to Install Dropbox on Ubuntu 20.04 From Official Repository

This tutorial will be showing you how to install Dropbox on Ubuntu 20.04 LTS desktop from Dropbox Linux repository. We will not download the installer from Dropbox Linux Download page, because the installer on that page is outdated. Install Dropbox on Ubuntu 20.04 From Official Repository If you don’t have a Dropbox account yet, then…


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How to Install Dropbox on Ubuntu 20.04 From Official Repository

Install Jitsi Meet on Ubuntu 20.04 – Self-Hosted Video Conferencing

This tutorial is going to show you how to install Jitsi Meet on Ubuntu 20.04 server. Jitsi Meet is a free open-source video conferencing software that works on Linux, macOS, Windows, iOS and Android. If you don’t trust Zoom, you can run your own video conferencing platform on your own server. Features of Jitsi Meet…


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Install Jitsi Meet on Ubuntu 20.04 – Self-Hosted Video Conferencing

Install Jitsi Meet on Ubuntu 18.04 - Self-Hosted Video Conferencing

This tutorial is going to show you how to install Jitsi Meet on Ubuntu 18.04 server. Jitsi Meet is a free open-source video conferencing software that works on Linux, macOS, Windows, iOS and Android. If you don’t trust Zoom, you can run your own video conferencing platform on your own server. Features of Jitsi Meet…


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Install Jitsi Meet on Ubuntu 18.04 - Self-Hosted Video Conferencing

Integrate Collabora Online with Nextcloud on Ubuntu without Docker

This tutorial is going to show you how to install Collabora Online on Ubuntu and then integrate it with an existing Nextcloud server without using Docker. Collabora Online is a self-hostable and LibreOffice-based open-source online office suite. Its features include: Basic editing High fidelity, WYSIWYG rendering Supports DOC, DOCX, PPT, PPTX, XLS, XLSX, ODF document…


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Integrate Collabora Online with Nextcloud on Ubuntu without Docker

How to Set Up Prosody XMPP Server on Ubuntu 18.04

Prosody is a free open-source XMPP server written in Lua. It’s fast and lightweight. XMPP is a great protocol for instant messaging. This tutorial is going to show you how to install and configure Prosody XMPP server on Ubuntu 18.04. Once you have finished this tutorial, you will have your own chat server. Step 1:…


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How to Set Up Prosody XMPP Server on Ubuntu 18.04

Set Up OpenConnect VPN Server (ocserv) on Ubuntu 20.04 with Let’s Encrypt

This tutorial is going to show you how to run your own VPN server by installing OpenConnect VPN server on Ubuntu 20.04. OpenConnect VPN server, aka ocserv, is an open-source implementation of Cisco AnyConnnect VPN protocol, which is widely used in businesses and universities. AnyConnect is an SSL-based VPN protocol that allows individual users to…


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Set Up OpenConnect VPN Server (ocserv) on Ubuntu 20.04 with Let’s Encrypt

Set Up Local DNS Resolver on Ubuntu 20.04 with BIND9

This tutorial will be showing you how to set up a local DNS resolver on Ubuntu 20.04, with the widely-used BIND9 DNS software. A DNS resolver is known by many names, some of which are listed below. They all refer to the same thing. full resolver (in contrast to stub resolver) DNS recursor recursive DNS…


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Set Up Local DNS Resolver on Ubuntu 20.04 with BIND9

How to Install RainLoop Webmail on Ubuntu 20.04 with Apache/Nginx

In previous articles, we discussed how to set up your own mail server on Ubuntu from scratch. This tutorial is going to show you how to install RainLoop Webmail on Ubuntu 20.04 with Apache or Nginx web server. RainLoop is a simple, modern, fast and open-source Web-based email client written in PHP. RainLoop webmail Features…


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How to Install RainLoop Webmail on Ubuntu 20.04 with Apache/Nginx

Part 3: PostfixAdmin – Create Virtual Mailboxes on Ubuntu 20.04 Mail Server

In previous articles, we discussed how to set up your own mail server on Ubuntu from scratch. In part 1 and part 2 of this tutorial series, we learned how to set up Postfix SMTP server and Dovecot IMAP server, but so far we can only have email addresses for users with local Unix accounts.…


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Part 3: PostfixAdmin – Create Virtual Mailboxes on Ubuntu 20.04 Mail Server

How to Install LAMP Stack on Ubuntu 20.04 Server/Desktop

This tutorial is going to show you how to install LAMP stack on Ubuntu 20.04 LTS. A software stack is a set of software tools bundled together. LAMP stands for Linux, Apache, MariaDB/MySQL and PHP, all of which are open source and free to use. It is the most common software stack that powers dynamic…


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How to Install LAMP Stack on Ubuntu 20.04 Server/Desktop

How to Install LEMP Stack on Ubuntu 20.04 Server/Desktop

This tutorial is going to show you how to install LEMP stack (Nginx, MariaDB, and PHP7.4) on Ubuntu 20.04. A software stack is a set of software tools bundled together. LEMP stands for Linux, Nginx (Engine-X), MariaDB/MySQL and PHP, all of which are open source and free to use. It is the most common software…


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How to Install LEMP Stack on Ubuntu 20.04 Server/Desktop

2 Ways to Upgrade Ubuntu 19.10 To Ubuntu 20.04 (Graphical & Terminal)

Ubuntu 20.04 Focal Fossa will be released on April 23, 2020. This tutorial is going to show you 2 ways to upgrade from Ubuntu 19.10 to Ubuntu 20.04: using the graphical update manager and using the command line. Normally you use the graphical update manager to upgrade Ubuntu desktop and use the command line to…


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2 Ways to Upgrade Ubuntu 19.10 To Ubuntu 20.04 (Graphical & Terminal)

2 Ways to Upgrade Ubuntu 18.04 To Ubuntu 20.04 (Graphical & Terminal)

Ubuntu 20.04 Focal Fossa will be released on April 23, 2020. This tutorial is going to show you 2 ways to upgrade from Ubuntu 18.04 to Ubuntu 20.04: using the graphical update manager and using the command line. Normally you use the graphical update manager to upgrade Ubuntu desktop and use the command line to…


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2 Ways to Upgrade Ubuntu 18.04 To Ubuntu 20.04 (Graphical & Terminal)

Set Up CUPS Print Server on Ubuntu (Bonjour, IPP, Samba, AirPrint)

This tutorial will be showing you how to share a printer attached to an Ubuntu computer with Windows, macOS and iOS clients on the same network. CUPS (Common Unix Printing System) is the default printing system on Linux, FreeBSD, and macOS. Your Linux desktop environment may have a dedicated printer configuration utility, but they all…


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Set Up CUPS Print Server on Ubuntu (Bonjour, IPP, Samba, AirPrint)

Set Up CUPS Print Server on CentOS 8/RHEL 8 (Bonjour, IPP, Samba, AirPrint)

This tutorial will be showing you how to share a printer attached to a CentOS 8/RHEL 8 computer with Windows, macOS, and iOS clients on the same network. CUPS (Common Unix Printing System) is the default printing system on Linux, FreeBSD, and macOS. Your Linux desktop environment may have a dedicated printer configuration utility, but…


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Set Up CUPS Print Server on CentOS 8/RHEL 8 (Bonjour, IPP, Samba, AirPrint)

Set Up SMTP and IMAP Proxy with HAProxy (Debian, Ubuntu, CentOS)

In previous tutorials, we discussed how to set up a mail server from scratch on Linux (Ubuntu version, CentOS/RHEL version), and how to use iRedMail or Modoboa to quickly set up your own mail server without having to manually configure each component of the mail server stack. This tutorial is going to show you how…


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Set Up SMTP and IMAP Proxy with HAProxy (Debian, Ubuntu, CentOS)

Set Up Samba Server on CentOS 8/RHEL 8 for File Sharing

In this tutorial, we’re going to learn how to install and configure a samba server on CentOS 8/RHEL8 to share files on the local network. Samba is a free and open-source SMB/CIFS protocol implementation for Unix and Linux that allows for file and print sharing between Linux, Windows and macOS machines in a local area…


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Set Up Samba Server on CentOS 8/RHEL 8 for File Sharing

Set Up SpamAssassin on CentOS/RHEL to Block Email Spam

Previously we discussed 7 effective methods for blocking email spam with Postfix SMTP server. In this tutorial, we are going to learn how to use SpamAssassin (SA) to detect spam on CentOS/RHEL mail server. SpamAssassin is a free, open-source, flexible and powerful spam-fighting tool. SpamAssassin is a score-based system. It will check email message against…


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Set Up SpamAssassin on CentOS/RHEL to Block Email Spam

Set Up OpenDMARC with Postfix on CentOS/RHEL to Block Email Spoofing

In previous articles, we discussed several effective tips to block email spam. This tutorial will be showing you how to set up OpenDMARC with Postfix SMTP server on CentOS/RHEL to block email spoofing and spam. OpenDMARC is an open source DMARC email policy filter for MTAs (Message Transport Agent, aka SMTP server). What is DMARC…


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Set Up OpenDMARC with Postfix on CentOS/RHEL to Block Email Spoofing

Install and Configure OpenDKIM on CentOS 8/RHEL 8 Mail Server

Previously I showed you how to set up SPF and DKIM on CentOS/RHEL mail server. Two common pieces of software that can do DKIM signing and verification on Linux are OpenDKIM and Amavis. In that tutorial I used Amavis, because at the time OpenDKIM isn’t included in any CentOS 8/RHEL 8 repository. As of now,…


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Install and Configure OpenDKIM on CentOS 8/RHEL 8 Mail Server

Host Multiple Mail Domains in PostfixAdmin on CentOS/RHEL

This tutorial will be showing you how to set up multiple mail domains (virtual hosting) on CentOS/RHEL server with PostfixAdmin, which is an open-source web-based interface to configure and manage a Postfix based email server for many domains and users. Prerequisites To follow this tutorial, it’s required that You have configured PostfixAdmin with one mail…


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Host Multiple Mail Domains in PostfixAdmin on CentOS/RHEL

Enable and Configure Postscreen in Postfix to Block Spambots

In previous tutorials, we discussed how to set up a mail server from scratch on Linux (Ubuntu version, CentOS/RHEL version). This tutorial is going to show you how to enable and configure Postscreen in Postfix SMTP server. Postscreen is an SMTP filter that blocks spambots (or zombie machines) away from the real Postfix smtpd daemon,…


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Enable and Configure Postscreen in Postfix to Block Spambots

How to Easily Set Up a Mail Server on Debian 10 Buster with iRedMail

Setting up your own email server on Linux from scratch is a pain in the butt, if you are not a skilled server admin. This tutorial will be showing you how to use iRedMail to quickly set up a full-featured mail server on Debian 10, saving you lots of time and headaches. What is iRedMail?…


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How to Easily Set Up a Mail Server on Debian 10 Buster with iRedMail

Use Postfix Transport Map and Relay Map For Flexible Email Delivery

In previous tutorials we discussed how to quickly set up a full-featured mail server using iRedMail or Modoboa, and we also learned how to set up SMTP relay with Postfix SMTP server to bypass port 25 blocking or IP blacklists. However, you might not want to set up your entire email server to use relay…


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Use Postfix Transport Map and Relay Map For Flexible Email Delivery

Run Apache, Nginx & HAProxy on Same Server (Debian, Ubuntu, CentOS)

If you’re a server admin, you probably have a web server of your choice like Apache, or Nginx. Apache is a well-known web server since the 1990s. Nginx was first developed in 2004 and quickly gained traction due to its lightweight memory footprint and fast processing speed for static HTML files. Both Apache and Nginx…


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Run Apache, Nginx & HAProxy on Same Server (Debian, Ubuntu, CentOS)

Install Roundcube Webmail on CentOS 8/RHEL 8 with Apache/Nginx

Roundcube is a free and open source webmail client written in PHP. A webmail is a mail client in your browser, which means instead of reading and sending emails from a desktop mail client like Mozilla Thunderbird, you can access your email from a web browser. Roundcube functionality includes MIME support, address book, folder management,…


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Install Roundcube Webmail on CentOS 8/RHEL 8 with Apache/Nginx

Part 4: Set Up SPF and DKIM with Postfix on CentOS/RHEL Mail Server

After completing part 1 and part 2, we have a working Postfix SMTP server and Dovecot IMAP server. We can send and receive email using a desktop email client. Although I have created correct MX, A and PTR record, my emails were flagged as spam by Gmail and Outlook mail. So in this part, we…


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Part 4: Set Up SPF and DKIM with Postfix on CentOS/RHEL Mail Server

PostfixAdmin – Create Virtual Mailboxes on CentOS/RHEL Mail Server

In previous articles, we discussed how to set up your own mail server on CentOS/RHEL from scratch. In part 1 and part 2 of this tutorial series, we learned how to set up Postfix SMTP server and Dovecot IMAP server, but so far we can only have email addresses for users with local Unix account.…


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PostfixAdmin – Create Virtual Mailboxes on CentOS/RHEL Mail Server

Part 2: Install Dovecot IMAP Server on CentOS and Enable TLS Encryption

This is part 2 of building your own email server from scratch on CentOS/RHEL tutorial series. In part 1, we showed you how to set up a basic Postfix SMTP server. In this tutorial, we are going to configure our email server so that we can receive and send emails using a desktop email client…


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Part 2: Install Dovecot IMAP Server on CentOS and Enable TLS Encryption

Run Your Own Email Server on CentOS - Postfix SMTP Server

Why run your own email server? Perhaps you have a website, which needs to send emails to users, or maybe you want to store your emails on your own server to protect your privacy. However, building your own email server from scratch can be a pain in the butt because there are so many software…


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Run Your Own Email Server on CentOS - Postfix SMTP Server

How to Set Up Postfix SMTP Relay on CentOS with Mailjet

This tutorial is going to show you how to set up Postfix SMTP relay with Mailjet on CentOS/RHEL. Postfix is a popular open-source SMTP server. Previously I wrote an article how to easily set up a full-blown email server on CentOS/RHEL with Modoboa, which helped a lot of readers run their own email server. However,…


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How to Set Up Postfix SMTP Relay on CentOS with Mailjet

How to Install Ghost Blogging Platform on CentOS 8/RHEL 8 Server

This tutorial will be showing you how to install the Ghost blogging platform on CentOS 8/RHEL 8 server. Ghost is an open-source blogging software coded in Node.js, allowing you to create modern, beautiful blogs. Compared to WordPress, Ghost is lightweight and much faster because it’s built specifically for blogging and isn’t a comprehensive content management…


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How to Install Ghost Blogging Platform on CentOS 8/RHEL 8 Server

Set Up Your Own BIND9 DNS Resolver on CentOS 8/RHEL 8

This tutorial will be showing you how to set up a local DNS resolver on CentOS 8/RHEL 8, with the widely-used BIND9 DNS software. There are many synonyms for DNS resolver, some of which are listed below. They all refer to the same thing. full resolver (in contrast to stub resolver) DNS recursor recursive DNS…


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Set Up Your Own BIND9 DNS Resolver on CentOS 8/RHEL 8

How to Install CentOS 8 on VPS in VNC Mode

This tutorial is going to show you how to install CentOS 8 on a VPS (virtual private server) in VNC mode. This is useful when your hosting provider doesn’t offer CentOS 8 in one-click install, or you want to customize the installation, such as encrypting the disk. VNC (Virtual Network Computing) allows you to manage…


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How to Install CentOS 8 on VPS in VNC Mode

How to Host Multiple Mail Domains in PostfixAdmin

This tutorial will be showing you how to set up multiple mail domains (virtual hosting) with PostfixAdmin, which is an open-source web-based interface to configure and manage a Postfix based email server for many domains and users. Prerequisites To follow this tutorial, it’s assumed that you have already configured PostfixAdmin with one mail domain and…


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How to Host Multiple Mail Domains in PostfixAdmin

Set Up OpenConnect VPN Server (ocserv) on CentOS 8/RHEL 8 with Let’s Encrypt

This tutorial is going to show you how to run your own VPN server by installing OpenConnect VPN server on CentOS 8/RHEL 8. OpenConnect VPN server, aka ocserv, is an open-source implementation of the Cisco AnyConnnect VPN protocol, which is widely-used in businesses and universities. AnyConnect is a SSL-based VPN protocol that allows individual users…


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Set Up OpenConnect VPN Server (ocserv) on CentOS 8/RHEL 8 with Let’s Encrypt