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Living Room / Like a bad penny...
« on: January 21, 2022, 10:42 AM »
...the prodigal redheaded stepchild has returned.  :-\

Now that I've got a real computer on my desk for the first time in years, I thought it was time to check in here, and vent a little about my ongoing medical problems while I'm at it.

After spending most of my time and money on musical pursuits over the last few years, I've been sidelined with a mysterious neurological condition. The current diagnosis, from 2 different neurologists, is an acute case of "That's Strange." I've been tested for the standard range of degenerative and autoimmune conditions - all negative. There's no sign of myelin damage, and no loss of muscle mass.

Despite that, I have significant neurological symptoms, ranging from numbness, tingling, weakness, and pain throughout my body, to loss of balance and loss of muscle control. These symptoms appear to be originating in my spinal cord, and most likely originating all the way up at my brain stem. In fact, one of the symptoms which has doctor's scratching their heads is that my symptoms all get worse as my neck is straightened to hold my head up in the proper position. If I drop my head, which I've been doing for years (more on that in a moment), my symptoms lessen. Fix my posture, and they come back with a vengeance.

Having been to a local neurologist, followed by a neuromuscular specialist at the University of Iowa, I'm now waiting to find out if the Mayo Clinic will see me. I'm not sure where I'm going to go if they don't, but while I'm waiting I thought I'd see if the inmates smart people here have any thoughts.

Where I think the doctors have gone wrong so far is ignoring what I consider the likely source of my problems. My parents were both exposed to Agent Orange in Vietnam. In fact, from what my mom has learned in recent years, she was probably exposed to massive amounts due to serving at the 24th Evac Hospital, which was a few miles down the road from Bien Hoa Air Base. Bien Hoa was where the Agent Orange operation was based, and remains the worst dioxin hotspot in the world. Apparently there was a standing order that any excess chemicals were to be sprayed on the hospital - a great idea if it weren't both inherently toxic in the heat and mixed at an insanely high concentration.

Mom left Vietnam in early 1968, just before the Tet Offensive. She was pregnant with my sister at the time. I was born in 1970. Fast forward about 45 years, and I started experiencing a variety of what turned out to be common neurological symptoms, connected to a variety of completely unrelated conditions. This was complicated by an existing shoulder problem, which was (and is) causing some minor symptoms.

Thanks to an excellent medical team, starting with my family doctor, and including a couple top notch physical therapists, I ended up putting shoulder surgery on indefinite hold because of what appeared to be a possible herniated disc. In fact, I did have a herniated disc, but it was exacerbated by another problem. My spinal canal, the tube that holds my spinal cord, is severely undersized.

Instead of being around an inch in diameter, it's around 3/8 of an inch. As a result, the herniated disc was pushing dangerously close to my spinal cord. I ended up having a near total cervical fusion (C3-T1). That took care of the worst symptom I had at the time (excruciating pain in my left arm). However, during recovery, I began experiencing new symptoms, spread throughout my body now.

In retrospect, this coincided with my rehab, and my efforts to address years of posture problems. By posture problems, I mean when I first went to physical therapy, there were several shoulder exercises I couldn't do at all because my shoulders were rolled so far forward. By years, I mean probably from the time my chronic knee problems started in my early 20s. I had my knee replaced when I was 42, but I never completely addressed what decades with a limp did to my posture.

As my symptoms worsened, and my physical therapist suspected a herniated disc in my back, my orthopedic surgeon ordered a full MRI of my back and neck. When it showed nothing, he referred me to a local neurologist. Although I was already convinced I would need more specialization than anyone local could offer, I knew the first step would be a basic neurological exam, followed by a battery of tests to rule out a standard range of rare diseases and disorders.

The closest to a positive result was 1 of 2 enzymes that could indicate Myasthenia Gravis being slightly elevated. The problem is it wouldn't explain most of my symptoms, and it's contraindicated my successful, if slow progressing, neck and shoulder rehab. The neuromuscular specialist I eventually saw at the university confirmed this.

When my local neurologist made the referral to Mayo, I made sure he asked for a specialist in neorodevelopmental disorders. The most common birth defects definitively tied to Agent Orange exposure in women are prenatal neural tube defects, mostly spinal bifida, which is also what I would expect such a doctor to specialize in. The question is whether I'll get someone ready to diagnose something they've never seen, and probably never heard of. At least I hopefully won't get the usual blank stare when I mention Agent Orange, so that's a step forward.

Other than complaining online, the only thing I have to do is play my bass, which is the only thing I can really do these days anyway. I'm not allowed to chop vegetables, because my wife doesn't trust me with the knife - and rightly so. I can't drive because my eyes don't focus correctly, and I'm not even allowed to walk up the steep stairs to the second floor because my balance is so bad.

It turns out, though, that I can still play, albeit with some physical adjustments for my fingers' habit of suddenly refusing to do what I want. My goal is to be out gigging again in a few months. It's entirely unrealistic, given my current symptoms, and lack of any treatment in the foreseeable future. Until reality actually steps in and stops me, though, it's my plan.

On the bright side, I now have access to the best parking spaces.


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General Software Discussion / Help me overbuild my home network
« on: April 24, 2014, 03:30 PM »
I'm gearing up for a major home network upgrade, actually more like building a completely new network from the ground up, and I need to tap into some of DC's IT wisdom to make the leap from concept to design. Originally my plan was simply to build a networked DVR and media server using MythTV (LinHES technically) to exorcise my house of Hulu Plus. Naturally I couldn't just build a server and put in some set-top boxes. Being... well me... I couldn't stick with something so straight forward and simple and now I've managed to escalate my plans into something truly batshit crazy.

Last week, when I was at a used office furniture store buying a desk, I lucked into a deal on a server cabinet so now I'm pretty well committed. Based on my wife's reaction when I put the 7 foot behemoth in my office (did I mention it's a full 42u cabinet?), she's all in favor of having me committed too. Hopefully if I pull this off I'll get to keep sleeping in the same room with her for many years to come.

So here's the new plan. Instead of nice new hardware I've decided to take advantage of the huge volume of outdated HP enterprise (well low end enterprise) servers available for next to nothing. Specifically I'm focusing on Generation 5 Proliant dl360 units which I should cost inside of $250 each including rack rails and shipping. I'm planning 3 servers - 1 for a border/network appliance, 1 for management (OpenLDAP mostly) and VM testing and one for media and possibly a couple other services once I'm comfortable with the performance.

The servers are going to be running ProxMox VE for virtualization and some combination of KVM and OpenVZ for the VMs. Since they will all be sharing drive space, which I'll also be using to expand my desktop, most of my spending is going to be on storage and network infrastructure. I'm going to want something more than a simple NAS so I've decided to setup a SAN instead. To ensure smooth network traffic and good throughput I'll be putting either 2 or 4 port Intel server NICs in all the machines, including the SAN.

Now I have to figure out the SAN hardware. Ideally I'd be using 2.5 inch SAS drives but they're just too expensive. Instead I'll be going with 3.5 inch SAS, Seagate Constellation ES specifically. They're designed for storage arrays and have a 5 year warranty. I'll be using either 1TB or 2TB drives in a RAID 6 configuration and a hardware controller with at least 512MB of BBWC. It will be either 6 or 7 drives which is more than Seagate recommends (they say up to 5) but I don't see that being a problem.

What's missing now is figuring out a controller to use and a server platform to put it in. Older hardware is a problem in this case because I don't want to settle for SAS-1 speed when I have the faster drives. There's already going to be a performance hit from the redundant parity for RAID 6. Ideally I want to set it up to provide some private cloud services for things like photo viewing and a file locker. Basically I want it to mesh well with my wife's iPhone similar to how public cloud services work. That should take care of her annoyance at the whole project.

That just leaves the issue of traffic management. I'd like to find a good used managed switch. Unfortunately managed managed switches are one of the last real scams left in the low end enterprise market. I mostly blame Cisco for that. Fortunately it seems like I can pick up an older ProCurve Chassis and the requisite cards for around $200. I also need to do some work on the wireless coverage around the house, and especially out in the garage, but I'll hold off on that until everything else is good and stable.

Any thoughts? Suggestions? Questions?

Feel free to just point and laugh. I would.

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LaunchBar Commander / LBC appearance tweaks
« on: April 17, 2014, 09:29 PM »
As requested by Mouser, here's what I'd like to be able to do to adjust the appearance of certain things in LBC. If anyone else has any suggestions they would like considered for the next version, now is the time to explain - preferably with some sort of visual aid.

1. I'd like to be able to adjust the position of nodes. In the example below I'd like to align the tops of all the icons but since the first one has no text and the others do this doesn't work.

2. Adjustable padding for the top of a launchbar.

3. Manually set the width of nodes. I'd like to set all 3 of these menu nodes to the same width and I'd like it to be arbitrary. By that I mean I want to select the width rather than relying on the size of the icon or text.

launchbar_appearance.png

Additionally I'd like to be able to set the size of a separator without losing the line. Currently if you set a manual width, the separator image is no longer shown. Also I'd like to be able to make that size less than 10 pixels (or whatever the current minimum is when you specify width) and specify whether the separator image should be on the left, center, or right.

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Developer's Corner / Interesting tool for generating WMI queries
« on: March 20, 2014, 10:33 AM »
While I was searching for a way to read shortcut (lnk) file properties in C# (why no I haven't torn out _all_ my hair, but thanks for asking) I stumbled across a nice little GUI for generating WMI queries called WMI Code Creator. It can be used either to enumerate the WMI namespaces, classes, methods, and qualifiers on a given computer (local or remote) or to actually generate C#, VB.NET, or VBScript code for running queries against them via WSH.

http://technet.microsoft.com/en-us/magazine/2006.01.utilityspotlight.aspx

I haven't gotten around to testing the code at all, or even attempted to browse the WMI providers on a remote machine for that matter. And of course WSH is deprecated in favor of PowerShell anyway. At the very least, though, the WMI browsing functionality seems useful. There's also a PowerShell based WMI browser that's probably more useful for that. Since PowerShell was introduced shortly before the end of my days as an IT monkey I can't seem to be bothered to put the time and effort into messing with it though.

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I'm trying to fix a laptop running Windows 7 for a friend. A few months ago she apparently got a job doing customer service work from home for a cruise line. They provided her with what sounds like some type of VM software to put on her computer. Before you ask I can't find where I wrote the company down so I'm waiting to hear back on that.

From that point on she couldn't get Windows to finish loading - at least that's her interpretation. In fact Windows itself does start but the only GUI element available is the mouse pointer. There's not desktop and in fact the window manager isn't even running. Just a black screen.

There are no restore points on the drive so that's out. Booting into safe mode, even safe mode with command prompt, gives the same results as a normal boot. It boots into repair mode but I can't get sfc to run. If I use /runnow it tells me there's a repair operation pending. If I use offline mode it shows the help like I used the wrong syntax which afaict isn't the case. Here's what I am using (running the repair environment from the Win7 DVD):

Code: Text [Select]
  1. sfc /offbootdir=d:\ offwindir=d:\windows

I have, of course, verified that d: is the correct drive letter for the boot drive.

Short or reinstalling Windows, what other options do I have? It's been a long time since I had to try repairing a Windows install from the recovery console and I'm hoping there's something obvious I'm forgetting.

Oh yeah, I should probably mention this is Ultimate Edition so Win7 Pro features are available on the off chance that makes a difference.

Edit: I just heard back from the laptop's owner. The software was related to training to work as a sales agent for Royal Caribbean. We're communicating via sms so this is a little slow and painful. It sounds like it was probably some third party software and not Royal Caribbean's but I'm still waiting for clarification on that.

Edit 2: It seems I was nearly right in the beginning. The software came from what appears to be a semi-scam company called Arise Virtual Solutions. They run a virtual call center for Royal Caribbean using work from home employees. The software was for training, but like I said from her description it sounded like some sort of virtual machine. Of course it's entirely possibly either she misunderstood what it did or they misrepresented it and it may be just some sort of VPN client.

In either case there's a good possibility it's some sort of virtual device driver.

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