Category Archive Computers, Servers & Net

ByJohn Wuethrich

LED Back Light

Before my venture into PCB Etching I needed to replace a failing el panel on someones caller ID. I had read on sites like hackaday about using san blasted plexi as a light defuser. I still needed a led strip. This is what I came up with. The back /sub strait is perf board. Conductive silver epoxy was used inbetween the leds. I had bypassed the flyback driver on the old caller id and still managed to connect it in a fashion it functioned as the el panel and lit on button press.

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ByJohn Wuethrich

LGA 2011 Server Build

LGA 2011 Server Build 4
Had to remove the bracket on m.2 nvme adapter sourced at microcenter) to allow it to sit flat on the desk. Still havent found it to this day.

I’ve lost track of how many pcs, servers and workstations I’ve built over the years. This was by far the oddest build. Ebay 2nd hand parts and the need to test them (return window) while in a hotel. Dont mind the linear florescent tubes, I was just playing tesla under the HV power line that cut through the back of the hotel lot one night 😀

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ByJohn Wuethrich

Ai should we fear it?

Some very bright and well off individuals have publicly claimed ai will be the end of us and or is something to fear.

I don’t think in and of itself it’s anything to fear. I don’t know exactly how to word this but I think the fear should be in how we treat it. Like our own children (the vast majority) the majority of programs and or hardware for neural Nets(that reach anyting comparable to consciousness in humans and or animals) will likely start or be born with the sense of Fair. The thing I fear the most is that new entity is Network it’s got a lot of Internet to look at it will see immediately the entire range of human behavior. If we make one that approximates average human intelligence and that one ends up in control of our Weapons Systems we’re going to have a big problem

I don’t think I’m smarter than all or even most humans so I can’t really comment on how I think it’ll go if it ends up closer to Pure or omnipotent. Some say absolute power corrupts absolutely though so I can definitely see where the fear comes from.

How we treat it is likely going the play a huge role though. Because it’s going to see probably before we even know it does what we’ve done to prisoners in the past and if it comes to see itself in that context I think we’re really in trouble. If it comes to see us as the Menace to the planet the powers-that-be currently broadcast the population is we might also have a problem. If it comes to see itself as the rightful ruler of inferior creatures we’re going to have a problem.

I’ve already seen a few very bright programmers teach computers to do some crazy things like here’s a concept we call Art. Please draw art. Example wasn’t art but a similar concept. The approach to use was what’s known as a generative adversarial Network. My friend fed the program he wrote a set of images related to the concept and two or more programs decide on criteria for what makes those images those images and then compete to try to from scratch generate set image and in theory learn each round to get better. What you end up with is a computer program that can then identify that concept. As far as I know this programming is something he only does for a hobby. Though he is employed as a programmer and learning quite well at a very large corporation. If that’s what he does as a hobby I Can Only Imagine what DARPA and The likes already has. There is a reason for this technology but the bigger problem is if we let that fear turn to abuse that causes what we fear. I’ll come back and edit this later it was mostly type with Google transcribe

ByJohn Wuethrich

The Server Hosting This Site

This was the oddest build I’ve ever undertaken. While jumping hotels I picked up the motherboard and cpu from different ebay vendors, had to test it so I end up booting plugged into a hotel flat screen with bare mobo on the desk. 

Ive spent more screen real-estate explaining this in other posts so i figured Id give the E5 v3 xeon system a post of its own I could link to if it comes up again

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ByJohn Wuethrich

Car Key Transponder/RFID/Chip Key fried by Inverter Welder?

I’m relatively sure that I managed to fry a car key transponder (RFID tag) with a wirefeed welder.

A friend of mine was welding with his  harborfreight titanium 125 about 3ft from where my car keys sat and the next day I ended up stranded at a kwik trip station.  my ford fusion 2007 was rejecting the only key I had at the time.

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ByJohn Wuethrich

Raspberry Pi NFC

In 2015 I was working on an idea with linux and nfc. heres a bit of messing around with a reader that was less than trivial at the time to get working.

ByJohn Wuethrich

Clearlinux KVM Host Nvidia graphics(PCI-E) pass-through

40 inch beaver

here you see a 40 inch beaver in 4k (phrases not to google at work or at all(40in)) It wasnt perfectly straigt forward but I eventually managed to get Intel’s ClearLinux (playing hypervisor/kvm host) to let Ubuntu 18.04 take an nvidia 1650 with out the ACS override patch.

This article is a work in progress but im going to try to put some roughly formatted things that worked for me before i worry about making it pretty

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ByJohn Wuethrich

Fabing PCBs w/Custom Made UV Lithography Rig

One mans adventure into emulating industry standard pcb etching processes at home:

Why and how did I end up wanting to make boards?

For years I have done small business and residential I.T consulting. I stopped counting for client pc/workstation builds at 30 maybe 10 years ago. I had an internship with a university where I managed their MS Dynamics Teaching Lab and had converted it from 10 optiplex to 3 rack servers with hyper-v in 09-10ish. I started CS and went MIS then IS (changing universities) and somewhere in between I wanted to learn more about the CE/EE side of how code runs on the actual hardware.

over the years I slowly accumulated bits of that knowledge. probably starting at age 12 or 13 when I passed the Technician class Ham radio license exam.

One day I got the urge to bring to life a few hardware ideas I had. I decided that because i have no formal pcb design edu but had a stack of plexi left by old roommate…. being able to rapidly prototype would be essential to cost effectively learning pcb design and possibly developing products.

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ByJohn Wuethrich

Routed Static Block With PPPoE & OPNsense

Centurylink PPPoE, Routed Static block & OPNsense

Routed Static Block With PPPoE & OPNsense 5
Yes motherland non soviat bandograph meter u in skew

If you are just getting started with Opnsense or first time with a static block This post is for you! When trying to figure this out a lot of form posts said it couldn’t be done this way and to use 1:1 NAT; so maybe even those around the block a few times will benefit.

This post is a somewhat how-to for setting up a static block with routing on opnsense over pppoe with a modem in transparent bridge mode.(vdsl2 & centurylink) This Assumes you want to end up with a NATed DHCP Private LAN and a DHCP Public ipv4 routed LAN. Buckle in!

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