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centos ssh public key authentication

2 Simple Steps to Set Up SSH Public Key Authentication on CentOS

This tutorial explains how to set up SSH public key authentication on a CentOS/RHEL desktop. There’re basically two ways of…

Secure Email Server Against Hacking

How to Secure Email Server Against Hacking with VPN (Debian/Ubuntu)

In this tutorial, I’m going to share with you my tips and tricks to secure email servers against hacking with…

Set Up ModSecurity with Nginx on Debian Ubuntu

How to Set Up ModSecurity with Nginx on Debian/Ubuntu

This tutorial is going to show you how to install and use ModSecurity with Nginx on Debian/Ubuntu servers. ModSecurity is…

Set Up ModSecurity with Apache on Debian Ubuntu

How to Set Up ModSecurity with Apache on Debian/Ubuntu

This tutorial is going to show you how to install and use ModSecurity with Apache on Debian/Ubuntu servers. ModSecurity is…

How to Install EteSync 2.0 (Etebase) Server on Ubuntu

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…

ProtonVPN on Desktop Linux

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…

skype ubuntu 18.04

3 Ways to Install Skype on Ubuntu 18.04/20.04 Desktop

This tutorial is going to show you 3 ways to install Skype on Ubuntu 18.04/20.04 desktop: install Skype from the…

elastic kibana dashboard

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…

Install Akaunting Self-Hosted Accounting Software on Ubuntu 20.04

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…

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

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…

Set Up BIND Authoritative DNS Server on CentOS 8 RHEL 8

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…

SMTP-relay-2-postfix-centos-rhel

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…

dovecot postfixadmin quota

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…

DNS over HTTPS (DoH) Resolver on Ubuntu with DNSdist

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…

libreelec raspberry pi

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…

quickly-set-up-mail-server-debian-10-buster-modoboa

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…

modoboa-email-server-ubuntu-20.04

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…

ocserv-apache-nginx-haproxy

Run OpenConnect 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…

2 Ways to Upgrade Ubuntu 20.04 To Ubuntu 20.10

2 Ways to Upgrade Ubuntu 20.04 To Ubuntu 20.10 (GUI & Terminal)

Ubuntu 20.10, codenamed Groovy Gorilla, will be released on October 22, 2020. This tutorial will be showing you 2 ways…

qbittorrent-remote-webui-centos8-rhel8

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…