This is the second part of the mail server tutorial in which we'll install and setup OpenSMTPD, Dovecot, DKIMproxy, and Let's Encrypt. https://unixsheikh.com/tutorials/arch-linux-mail-server-tutorial-part-2-opensmtpd-dovecot-dkimproxy-and-lets-encrypt.html
In this tutorial we're going to setup Arch Linux as a mail server for virtual users using openSMTPD and Dovecot. The setup I am going to use is a simple setup for home usage or office usage without webmail or database management of virtual users (though you can easily add that). Instead the users are managed using a simple flat file and they connect to the server using an email client. The setup is very easy to manage and it is very well suited for home usage, if you want to manage your own emai
In this part of the tutorial we're going to take a look at the important parts of setting up DNS in order to run a mail server. https://unixsheikh.com/tutorials/arch-linux-mail-server-tutorial-part-3-get-dns-right-it-is-important.html
If you have experience running any of the popular Linux distributions like Debian GNU/Linux, Arch Linux, Fedora, OpenSUSE, etc., and are trying out OpenBSD, one of the easiest things to get confused about is the package management, it's a bit different on OpenBSD. https://unixsheikh.com/tutorials/package-management-in-openbsd.html
In this tutorial we're going to take a look at setting up full disk encryption on the Void Linux base system using GRUB for a BIOS/MBR based setup. While the choice to install in UEFI mode is encouraging, vendor UEFI implementations still carry more bugs than their BIOS/MBR counterparts. Contrary to "modern" advice I still haven't found any compelling reason to use UEFI yet. https://unixsheikh.com/tutorials/real-full-disk-encryption-using-grub-on-void-linux-for-bios.html
I have been using OpenBSD, a FREE, multi-platform 4.4BSD-based Unix-like operating system, both professionally and privately since about 2004, and today I'm going to share some of my experiences. https://unixsheikh.com/articles/openbsd-is-fantastic.html
Void Linux is a great rolling release and independent Linux distribution that uses the X Binary Package System (XBPS) package manager, which was designed and implemented from scratch, and the runit init system. Excluding binary kernel blobs, a base install is composed entirely of free software, but users can access an official non-free repository to install proprietary software. https://unixsheikh.com/articles/void-linux-a-great-and-unique-linux-distribution.html
In this article we're going to take a close look at the real motivation behind the development of systemd, and we're going to take a look at some of the future perspectives for GNU/Linux as an operating system. https://unixsheikh.com/articles/the-real-motivation-behind-systemd.html
I decided it was time to try and revive my old Cubox that has been lying around unused for a very long time. Back then it was running a custom Armbian (Debian for ARM) release from SolidRun, but SolidRun have long since abandoned the old Cubox and deleted all content from their servers. In this tutorial I'll share how I got the Cubox up and running again with the latest Linux kernel. It is currently working as a small backup server running two USB harddrives in a Btrfs mirror. https://unixsheikh
