Walkthroughs, tutorials, and scripting, focused on OpenBSD development.

OpenBSD NFS Performance Tuning - Part 2

By Finde Labs |  Mar 15, 2019  | scripting, openbsd, tuning, nfs

Part two NFS performance tuning. I have some new data to publish. I reran the full NFS test, this time with the script transferring three files, with one sync and unmount in between the three transfers. I saw more interesting behavior that is worth noting, as well as publishing the script used to compile these logs.

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OpenBSD NFS Performance Tuning

By Finde Labs |  Mar 12, 2019  | openbsd, tuning, nfs

Recently I’ve starting using my FreeBSD server as an active NFS server again, instead of just a giant file storage system for old pictures and docs. I prefer to keep as much data on a central storage system, that way, individual client machines can be rebuilt at a moments notice with no data loss.

Until a few months ago, my home desktop was running CentOS. Now it is a OpenBSD desktop running CWM, and I have noticed that the NFS client performance didn’t seem that great compared to the old Linux desktop. So, I figured it was time for some performance testing.

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OpenBSD as a Wireguard Client

By Finde Labs |  Feb 22, 2019  | openbsd, networking, wireguard, routing

Since it has been a couple weeks since first starting to work with wireguard on OpenBSD, I figured it was about time to figure out how to get my OpenBSD desktop to act as a wireguard client. Who knows, perhaps this will one day allow me to drop my PIA VPN and shift exclusively to running my own personal VPN’s.

Well, I am no networking pro. I know there is a wg-quick script out there, but the couple of times that I tried it out on OpenBSD, it failed. I figured that there shouldn’t be that much to a wireguard tunnel, all I have to do is figure out how to establish the tunnel and force data out the tun device.

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OpenBSD Router NAT for Consoles

By Finde Labs |  Feb 19, 2019  | openbsd, networking, nat, upnp

I’ve been running a OpenBSD server as my home router for a number of years now, moving between various configuration, scripts, and hardware. I’ve been running on the FW1 for a year now. I originally built the router as an escape from both ISP-provided router/modem combos, as well as custom firmware such as dd-wrt; I wanted more control.

Ever since I was a teenager, I always enjoyed the command line interface. It let me instruct EXACTLY what I wanted the OS to do, and have more control than any GUI out there. However, one area on my router that has always annoyed me was UPnP. This was, as far as I knew, a necessary evil. Without UPnP, online games had a difficult time with multiplayer.

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Configuring a pppoe link on OpenBSD

By Finde Labs |  Feb 17, 2019  | openbsd, pppoe, networking

A few years ago, I became fed up with my ISP-provided modem-router combo due to lagginess, sluggish DNS, and overall untrustworthiness. I ended up purchasing a Linksys WRT1900 and flashing it with dd-wrt, which chugged along happily for a couple years. However, later in its life, the router would sometimes stop responding, and lazily I would simply reboot it. Slowly, this pattern started occurring more and more frequently, up until the end of its life.

I decided to make a change. I had been using OpenBSD and Freebsd on and off for a better part of ten years, and I figured it was about time to move to a router that I could trust.

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OpenBSD Ansible Deploy on GitHub

By Finde Labs |  Feb 17, 2019  | openbsd, ansible, vultr-api

This is an announcement for a new repo I made on GitHub. Since I am constantly testing new deployments on vultr, I realized that it would make my life easier if I put all of my current projects into one public repo, to ease scripted deployments on Vultr.

This new repo will hopefully be the location of future projects, which may make their way into other public repos of mine. Be warned, it will probably be changing often, and may be broken at times.

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Using Vultr Startup Scripts

By Finde Labs |  Feb 12, 2019  | openbsd, scripting, vultr

In a previous article, I wrote of my OpenBSD-Wireguard ansible configuration that I’ve been using for my personal VPN’s recently.

Using Vultr’s startup scripts in addition to the OpenBSD-Wireguard ansible playbook, one is able to deploy a wireguard VPN to any of Vultr’s datacenters within ten minutes. This includes the OS installation by Vultr, as well as the playbook execution following a final reboot.

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Dedicated OpenBSD-WireGuard Server; Part Two

By Finde Labs |  Feb 3, 2019  | openbsd, ansible, wireguard

Welcome to part two of using WireGuard on OpenBSD! The first post was about the initial release of the project; This followup is about one new role added to the playbook. Now in the initial release, I wasn’t attempting to compile wg or wireguard within the playbook itself. I had just planned to update the binaries every day/week with a cronjob run on one of my servers. However, thank you reddit user techsnapp for pointing out that there is actually a script that wireguard provides to assist in compiling the software on OpenBSD. This post will go over the new role written to reliably download and compile wg, wg-quick, and wireguard-go.

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Deploying a dedicated OpenBSD-Wireguard server

By Finde Labs |  Feb 2, 2019  | openbsd, ansible, wireguard, automation

I recently published my OpenBSD-Wireguard project on GitHub. There is now a published wireguard role, found in my OpenBSD Dev repo, found here. Compared to some of my other playbooks, this one is fairly simple. All it does is configure a fresh OpenBSD server to act as a wireguard server, to which multiple connections over one tun3 device are allowed.

I have tested multiple times deploying the playbook in minutes to a Vultr VM. By the way, I would eagerly recommend vultr to anyone looking for a fast yet cheap VPS solution. I have had zero problems while using their services the past few months.

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Configuring Calm Window Manager

By Finde Labs |  Jan 28, 2019  | openbsd, window-manager, cwm

Even though I am such a proponent of OpenBSD, and BSD’s in general, my first foray into opensource was actually with linux. Since I was so young at the time, all I really seemed to care about was gnome vs kde. I quickly learned about the importance of the command line, and gradually shifted to become more interested in more minimal window managers. Trying out wm’s like fluxbox, openbox, and ratpoison, I quickly became obsessed with the minimal.

I eventually settled on using i3wm on my thinkpad for awhile, but have since moved to simply ssh’ing into my servers from a chromebook. However, I recently game calm window manager a try, and have since fallen in love.

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