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OpenBSD Administration and Why It is Used

Submitted by Roy Schestowitz on Monday 4th of May 2020 08:56:30 AM Filed under
BSD
  • Diving Into OpenBSD Administration

    Modern developments continue, and the release cycles have been consistent with bi-annual releases. Their constant efforts and fixation on being the most secure operating system has really captured my attention. Their documentation is also top notch. Read a Linux manual page then read an OpenBSD man page for the same tool and tell me you don’t notice a difference. While sometimes subtle, the effort leans towards the OpenBSD docs in my experience.

    Now that you have a brief, raw, unfiltered peak into the history of OpenBSD, you may begin to understand why I decided to use the operating system to host a variety of my services and sites. I even went as far to install it on my ThinkPad T480 to use as a portable workstation.

  • What OSes we use here (as of May 2020)

    OpenBSD is used in an assortment of roles, some of which are historical. Our largest use is for firewalls, where we value its stability and we really like OpenBSD's PF firewall rule system (and we also have a lot of experience with it and a lot of current PF firewall rules). This extends to our VPN servers (both OpenVPN and L2TP), because they have firewalls as part of the VPN service and in general we've had good experiences with OpenBSD based VPNs. We also use OpenBSD for our internal DNS resolvers, our official public DNS primary, and as the DHCP server for most of our internal 'sandbox' private networks.

    (Our DNS stealth master and the DHCP servers for our 'laptop network' and our wireless network are all Ubuntu LTS machines, though.)

    We're most strongly attached to OpenBSD for firewalls and for VPN servers. It's possible that we'd move other services from OpenBSD to Ubuntu in the future, but at the same time our motivation for doing so is low. For all that I've griped about this issue in the past, moving from OpenBSD version to OpenBSD version is generally very easy for us; almost all of the time, everything just drops into place in the new version. Moving to Ubuntu LTS would likely be more work.

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