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