La virtualisation de machine virtuelle sous OpenBSD est officiellement disponible nativement dans le système de base depuis OpenBSD 5.9. Néanmoins, la FAQ Virtualisation (EN, FR) apparaît à partir d'OpenBSD 6.4 - (preuve d'une certaine maturité !?)
OpenBSD comes with the vmm(4) hypervisor and vmd(8) daemon. Virtual machines can be orchestrated with the vmctl(8) control utility, using configuration settings stored in the vm.conf(5) file.
OpenBSD and the network by Peter Hessler
I frequent the #openbsd
IRC channel in order to help people. A question commonly asked is how to automatically lock your machine when putting it to sleep with zzz(1). I answered this question in a previous article (which was actually written four years ago; time flies!) but it was written in French, so here's a new one, also covering additional related topics.
Nous allons voir dans cette article comment mettre en place de la haute disponibilité sur pare-feu en utilisant CARP et pfsync. Ensuite nous relierons deux sites par un tunnel GRE chiffré en IPSEC. Ce tutoriel est réalisé sous Virtualbox.
Did you think that OpenBSD is suitable only for firewalls and high-security servers? Think again.
This time I would like to go a little bit further and extend the server with a network of virtual machines, where each machine can be reached by the name of the subdomain it should represent.
All thanks to VMM/VMD, Alpine Linux, and the latest OpenBSD improvements
This is a new and revised version of the classic PF tutorial, with added content covering more topics related to networking, and with additional exercises to put the knowledge in practice.
After 12 years, I switched from macOS to OpenBSD. It's clean, focused, stable, consistent and lets me get my work done without any hassle.
This document tries to give an overview how recent versions of OpenBSD run best as VM on an hypervisor. It is centered on Linux/KVM/qemu, but some of it is also valid for other hypervisors.
How to have fun with the world’s most important free software project
I recently tried out OpenBSD as a possible answer to recent Linux engineering. I thought I’d share my notes here on my results, from a beginner’s and Linux user’s perspective. (I tried FreeBSD briefly before as well.) If you’ve used OpenBSD more extensively on the desktop, your feedback on any of this is welcome too – I’d like to know what you think of my opinions, you being a longer-term user.
If you run a Secure Shell login service anywhere which is accessible from the Internet, I'm sure you've seen things like these in your authentication logs:
Sep 26 03:12:34 skapet sshd: Failed password for root from
This mail archive is the complete (as far as I know) communication
between myself and the NetBSD core between December 15 (when they
removed all my NetBSD access) and the day OpenBSD was formed. It
actually goes a little further beyond that time, and includes mail
from a few other people involved in the negotiations.
I am a regular Linux system user. In Linux (especially CentOS), I am used to applying updates a few times a week using yum command, but how do I do that on my OpenBSD severer? How do I apply updates on OpenBSD operating system?
Building an smtpd Mail Server using OpenBSD/OpenSMTPD
I've been using OpenBSD since way back at release 2.3 in 1998, so I've gone through upgrades that took a fair amount of work due to incompatible changes, like the switch from ipf to pf for host firewalling or the change to ELF binaries.
pledge(), a new mitigation mechanism
signify: Securing OpenBSD From Us To You (OpenBSD)