OpenBSD Kernel Internals — Creation of process from user-space to kernel space.

This time let’s discuss about the process creation in OpenBSD operating system from user-space level to kernel space. We will take an example of the user-space process that will be launched from the Command Line Interface (console), for example, “ls”, and then what happens in kernel-space as a result of it...

https://medium.com/@_neerajpal/openbsd-kernel-internals-creation-of-process-from-user-space-to-kernel-space-31a504389f87

#kernel #userspace

NetBSD 9.3 released.

The NetBSD Project is pleased to announce NetBSD 9.3, the third release from the NetBSD 9 stable branch.

https://blog.netbsd.org/tnf/entry/netbsd_9_3_released

#release #system

AppManager

A GUI for the OpenBSD package manager. You can search for packages by typing text. There is a setting if you want to include packages description into the search...

- https://tildegit.org/solene/AppManager
- https://dataswamp.org/~solene/2022-05-05-i-wrote-a-gui-frontend-with-a-game-engine.html

#packages #gui

muxfs.

Introducing muxfs a mirroring, checksumming, and self-healing filesystem layer for OpenBSD.

https://sdadams.org/blog/introducing-muxfs/

#filesystem #fs

Installing OpenBSD on Scaleway Elastic Metal.

The instructions below will roughly stay the same should you want to install NetBSD or FreeBSD instead of OpenBSD...

https://www.senzilla.io/blog/2022/08/10/installing-openbsd-scaleway-elastic-metal/

#install #system

How to host your server with OpenBSD?

You are about to dive into the world of self-hosting. This document is written to help you host at home or on a dedicated (rented) server some services unfortunately too often entrusted to third parties. The main goal is to keep things as simple as possible while learning gradually. Of course, compromises have been made. If you feel you want to learn more after reading this, that's great! 😊

https://si3t.ch/ah/en/toc/

#selfhosted #setup

DNS over TLS: OpenBSD with Unbound.

This article describes how to configure and use Unbound on OpenBSD in order to send encrypted DNS via DNS over TLS to Quad9. This was tested using OpenBSD 7.1.

https://support.quad9.net/hc/en-us/articles/7303285565069-DNS-over-TLS-OpenBSD-with-Unbound

#doh #unbound

#art (from Twitter)

Building a Large-Scale Threat Intelligence System with OpenBSD.

In this talk I describe a threat intelligence system that leverages thousands of OpenBSD firewalls deployed at businesses across a wide range of industries. The data is collected, processed, and analyzed to create tactical threat intelligence feeds that are then automatically disseminated back to all the firewalls to defend against Internet threats. The talk discusses why OpenBSD was selected as the platform of choice and how its features are used to achieve the objectives of this system, as well as challenges and lessons learned.

https://www.youtube.com/watch?v=qQdcAn4-3CE

#video #bsdcan

OpenBSD on a Lenovo Thinkpad X220.

This is going to be yet another post about installing / running OpenBSD on an old Thinkpad X220. It’s not going to be different than all of the other guides that are already out there, but my motivation and what came of it afterwards might be interesting for some folks.

https://housingsklave.at/posts/2022-05-07-openbsd-on-a-lenovo-thinkpad-x220/

#hardware #install #system

How to get rid of all the warnings in Nextcloud.

After the installation of Nextcloud you check for security & setup warnings in the administration panel. Although you followed the pkg-readme for Nextcloud to the point you get some yellow entries there. In this article I show you how you can get rid of these.

https://www.bsdhowto.ch/ncwarnings.html

#nextcloud #httpd #redis

Network Management with the OpenBSD Packet Filter Toolset.

#video #network

EuroBSDCon 2022 slides. #eurobsdcon

Rootctl.

Minimal chroot launcher for OpenBSD.

https://github.com/TheDevtop/rootctl

#chroot #system

Running a Docker Host under OpenBSD using vmd(8).

The OpenBSD virtual machine daemon works pretty well with Linux VMs nowadays. This was time for me to see if I could replace the Synology Docker service with some Docker host provided by vmd(8)...

https://www.tumfatig.net/2022/running-docker-host-openbsd-vmd/

#docker #vmd

A Few of My Favorite Things About The OpenBSD Packet Filter Tools.

The OpenBSD packet filter PF was introduced a little more than 20 years ago as part of OpenBSD 3.0. We'll take a short tour of PF features and tools that I have enjoyed using...

https://bsdly.blogspot.com/2022/09/a-few-of-my-favorite-things-about.html

#firewall #network #pf

cwdof.

Simple utility to get the current working directory of a given process in OpenBSD.

https://github.com/phillbush/cwdof

#cwdof #system

OpenBSD package search.

Default search queries OpenBSD 7.2 package sets. You can search -current packages (from Thu Sep 29 06:56:13 2022) by toggling the '-current' checkbox.

https://openbsd.app/

#link #package #search

OpenBSD: Manage DNS, DNSSEC (to automate TLSA records).

My DNS service run since 4 years, under OpenBSD native tool named nsd. I manage DNSSEC with ldns tools, a package into ports. In the facts, I use ldnscript tool to create all needed keys and manage DNSSEC. Starting Juin 2022, I decided to switch from RSA to use ECDSA. Before going any further in this direction, let’s move on to the installation of the necessary prerequisites necessary...

https://doc.huc.fr.eu.org/en/post/openbsd-nsd-dnssec-tlsa/

#dns #dnssec

OpenBSD 7.2 released. #release