How to Set DNS Nameservers on Ubuntu 18.04
The DNS nameservers (resolvers) are servers which are used by other devices to perform DNS lookup for a requested domain. In this guide, we’ll explain how to configure the DNS nameservers (resolvers) on Ubuntu 18.04.
How to Edit Your Hosts File on Linux, Windows, and macOS
The hosts file is used to map domain names (hostnames) to IP addresses. It is a plain-text file used by all operating systems. In this article, we’ll provide instructions about how to modify the hosts file on Linux, macOS and Windows.
Install and Integrate Rspamd
In this tutorial we will go through the installation and configuration of the Rspamd spam filtering system and its integration into our mail server and creating DKIM and DMARC DNS records.
Set up a mail server with PostfixAdmin
Postfix Admin is a web based interface which allows users to configure and manage a Postfix based email server. With Postfix Admin you can create and manage multiple virtual domains, users and aliases.