Problem on Pieter Viljoen's Blog

eNom Datacenter Move Borks DNS

Mon, 17 Jan 2022 19:52:26 +0000

eNom really borked their datacenter move resulting in two days and counting of no DNS.

I first noticed the issue Saturday (15 Jan 2022) night when my inbox remained clean for several hours, yes, I am one of those people that like to keep email organized and the inbox clean. A bit of head scratching and googling led me to a reddit post laying blame on the Enom Data Center Migration gone wrong.

I registered my first domain in 2000 over a dialup modem. Over time I’ve registered several more domains with several registrars (based on regional or TLD requirements of the day). In 2006 I consolidated all my registrations with eNom, in 2011 eNom transferred my account to BulkRegister, and in 2020 BulkRegister transferred my account to Hover. So, today I am a Hover customer, and Hover is an eNom reseller, using eNom DNS services.

Using ESP to Debug an ESP

Thu, 22 Oct 2020 18:04:53 +0000

This post is about troubleshooting the sporadic ESP8266 hardware watchdog resets in my water recirculation pump controller project.

The ESP8266 would randomly restart, which I can observe by monitoring the uptime reported by ESPHome to Home Assistant.

It is difficult to debug because the Sonoff TH10 is in a waterproof case in my garage, making it difficult to get a USB/UART connection for debug logging. The alternative is to monitor logs over the network, and to include the debug component that will log the restart reason. But, network logging does not capture crash information, that is only logged by UART.

Unraid vs. Ubuntu Bare Metal SMB Performance

Mon, 03 Feb 2020 04:14:07 +0000

In my last test I compared Unraid SMB performance with an Ubuntu VM running on Unraid, and Ubuntu outperformed Unraid. I was wondering if the VM disk image synthetically improved performance, maybe IO caching, so this time I tested Ubuntu on the same hardware that runs Unraid.

I configured the system to boot from either the Unraid USB stick, or an Ubuntu Server USB stick. In both cases the hardware was exactly the same, and the SMB share was on the same 4 x 1TB Samsung 860 Pro SSD BTRFS volume. I mounted the BTRFS volume using the same mount options that Unraid uses. The Ubuntu Samba server used default options, the only change I made was to register the share.

Recovering the Firmware on a Supermicro BPN-SAS3-846EL1 Backplane

Sun, 02 Feb 2020 21:26:32 +0000

In a previous adventure I replaced an Adaptec HBA with an LSI SAS3 HBA, and the chassis drive bay LED’s stopped working. I suspect the LSI card does not play nice with the SGPIO sideband controller, and I decided to replace the chassis with one similar to my SC846 chassis, where the LSI card and drive bay LED’s do work fine.

What should have been a simple replacement turned into quite a recovery operation.

Unraid repeat parity errors on reboot

Sat, 11 Jan 2020 01:52:30 +0000

This post started with a quick experiment, but after hardware incompatibilities forced me to swap SSD drives, and subsequently lose a data volume, it turned into a much bigger effort.

My two Unraid servers have been running nonstop without any issues for many months, last I looked the uptime on v6.7.2 was around 240 days. We recently experienced an extended power failure, and I noticed 5 parity errors, on both servers, after the servers were restarted.

Unraid in production, a bit rough around the edges, and terrible SMB performance

Tue, 11 Jun 2019 02:51:12 +0000

In my last two posts I described how I migrated from W2K16 and hardware RAID6 to Unraid. Now that I’ve had two Unraid servers in production for a while, I’ll describe some of the good and not so good I experienced.

Running Docker on Unraid is magnitudes easier compared to getting Docker to work on Windows. Docker allowed me to move all but one of my workloads from VM’s to containers, simplifying updates, reducing the memory footprint, and improving performance.

Unraid and Robocopy Problems

Mon, 13 May 2019 03:12:41 +0000

In my last post I described how I converted one of my W2K16 servers to Unraid, and how I am preparing for conversion of the second server.

As I’ve been copying all my data from W2K16 to Unraid, I discovered some interesting discrepancies between W2K16 SMB and Unraid SMB. I use robocopy to mirror files from one server to the other, and once the first run completes, any subsequent runs should complete without needing to copy any files again (unless they were modified).

eNom Dynamic DNS Update Problems

Sat, 30 Jun 2018 16:57:07 +0000

Update: On 27 July 2018 eNom support notified me by email that the issue is resolved. I tested it, and all is back to normal with DNS-O-Matic.

Sometime between 12 May 2018 and 24 May 2018 the eNom dynamic DNS update mechanism stopped working.

I use the very convenient DNS-O-Matic dynamic DNS update service to update my OpenDNS account, and several host records at eNom, pointing them to my home IP address.

Razer BSOD When Driver Verifier is Enabled

Wed, 26 Apr 2017 05:13:57 +0000

Not too long ago I complained about Razer’s poor UX and Support, this time it is a BSOD in one of their drivers, and forever crashing Razer Stargazer camera software.

I’ve been looking for a Windows Hello capable webcam, and the Razer Stargazer, based on Intel RealSense technology, looked promising. The device is all metal and tactical looking, but the software experience is so buggy, install this, install that, then crash after crash after crash. I ended up returning it for a refund, and got a Logitech BRIO instead, the BRIO is cheaper, and works great.

Razer Shoddy Support and Bad Software UX

Tue, 28 Mar 2017 19:07:28 +0000

This post is just me venting my frustration at Razer’s poor software user experience, and their shoddy support practices. I’m writing this after I just had to go and find a working mouse, so I could click a button on a dialog that had no keyboard navigation support.

I’ve been using Razer keyboards and mice for some time, love them, their software not so much. I had to replace an aging ThinkPad, and the newly released Razer Blade Stealth looked like a great candidate, small and fast, reasonably priced, should be perfect, well, not so much.

Circumventing ThinkPad's WiFi Card Whitelisting

Fri, 23 Dec 2016 20:10:45 +0000

What started as a simple Mini PCI Express WiFi card swap on a ThinkPad T61 notebook, turned into deploying a custom BIOS in order to get the card to work.

I love ThinkPad notebooks, they are workhorses that keep on going and going. I always keep my older models around for testing, and one of my old T61’s had an Intel 4965AGN card, that worked fine with Windows 10, until the release of the Anniversary / Redstone 1 update. After the RS1 update, WiFi would either fail to connect, or randomly drop out. The 4965AGN card is not supported by Intel on Win10, and the internet is full of problem reports of Win10 and 4965AGN cards.

UPS Battery Replacement Turns Into Unrecoverable Firmware Update

Sat, 15 Oct 2016 02:09:32 +0000

As the saying goes, if it is not broken do not fix it, especially when it comes to firmware.

I have a couple APC Smart-UPS’s at my house, same as the models I like to use at the office. I use the SMT750 models with AP9631 Network Monitoring Cards. The problem started when we had a short power outage, and the UPS that powers the home network switch, cell repeater, alarm internet connection, and PoE IP cameras, unexpectedly died. A battery replacement led to the opportunity to do a UPS firmware update, which led to an unrecoverable firmware update.

Amazon Associates Account Closed

Wed, 31 Aug 2016 17:55:07 +0000

Amazon just notified me in email that my Associates account was closed due to not being in compliance with their operating agreement:

“You are not in compliance with Participation Requirement Number 29 because purchases resulting from Special Links on your site have been used for resale or commercial use.”

I have no idea how or why this happened.

A couple of years ago I moved my blog from the free Blogger platform to a paid WordPress.com hosted site. About the same time I signed up for an Amazon Associates account, profiting from any Amazon links resulting in sales, hoping that the proceeds would cover the costs of WordPress hosting and domain registration.

Nest Protect False Alarms

Wed, 21 Jan 2015 03:08:42 +0000

2AM, beep, smoke alarm low battery warning, and when one beeps, all the interconnected ones beep, now it is impossible to find which one has a low battery. As for how smoke alarms look, I’ve always wondered who made those terrible aesthetic design choices, maybe it is some kind of industry insider competition to see who can design the ugliest unit with the most obnoxious markings, and still get them sold.

Electrical Power Quality

Wed, 13 Nov 2013 00:49:25 +0000

Earlier this year we moved a couple miles from Redondo Beach to Manhattan Beach, bigger house, better school district. As far as the house and area are concerned, it is definitely an upgrade, but not so for the utilities.

Monthly utilities are a lot more expensive, not so much the per unit fees, but the base service fees, not just a couple $, but three or four times what we paid in Redondo Beach. Now, if it came with better offerings, or better service, or higher quality, ok, but the opposite. Water quality is worse, specifically hardness, MB supplies its own water, RB gets water from LADWP, and that unsightly water tower that no longer serves any practical purpose, with efforts to demolish it always being thwarted. As a new resident trash collection makes me pay almost thirty $ extra per month for an extra trash can, while grandfathered-in residents keep extras for free. Now, I know it is unfair to judge a service by their employee’s actions, or is it, but the trash collection guy is a jerk, if a little dust and having to get out of the truck is going to get you agitated, you are in the wrong business, especially when compared with the pack of trash collection men in RB that were always friendly and willing to give a hand. But, I really digress, I want to discuss electrical power quality problems.

LSI turns their back on Green

Wed, 21 Nov 2012 23:02:00 +0000

I previously blogged here and here on my research into finding power saving RAID controllers.

I have been using LSI MegaRAID SAS 9280-4i4e controllers in my Windows 7 workstations and LSI MegaRAID SAS 9280-8e controllers in my Windows Server 2008 R2 servers. These controllers work great, my workstations go to sleep and wake up, and in workstations and servers drives spin down when not in use.

I am testing a new set of workstation and server systems running Windows 8 and Server 2012, and using the “2nd generation” PCIe 3.0 based LSI RAID controllers. I’m using LSI MegaRAID SAS 9271-8i with CacheVault and LSI MegaRAID SAS 9286CV-8eCC controllers.

RIP Boxee Box

Tue, 23 Oct 2012 02:02:11 +0000

After nearly six months of no software updates for the Boxee Box, Boxee announced the Boxee TV, and, as far as I’m concerned, the death of the Boxee Box.

Boxee is releasing an updated hardware platform, but they are abandoning all local media playback and cataloging capabilities, and instead focusing on a, US only, cloud storage DVR device.

I have no need for such a device, and based on the Boxee community forum posts, the blog comments, and even comments from their XBMC roots, I am not alone in expressing my disappointment.

Dyslexic Intel RSTe Driver

Mon, 03 Sep 2012 16:45:04 +0000

I encounter one problem after another running Windows 8 and Server 2012 on the dual Xeon E5 Intel C600 chipset based SuperMicro 7047A-T and 7047A-73 SuperWorkstation machines. I will say that this is really not representative of my Windows 8 experience in general, as all other machines I installed on worked fine with the in-box drivers.

The C602 includes the Intel Storage Controller Unit (SCU) SATA / SAS controller. Windows 8 and Server 2012 do not include in-box drivers for the SCU. The SCU drivers are part of the Intel Rapid Storage Technology Enterprise (RSTe) driver set. Note that the RSTe and RST drivers are different and not compatible with one another. When you install the full RSTe package, it includes SCU drivers for the SCU RAID controller, AHCI drivers for the SATA controller, and the Windows RST management application.

Windows 8 VIDEO_TDR_FAILURE Madness

Thu, 23 Aug 2012 22:09:49 +0000

I finally figured out why I kept on getting VIDEO_TDR_FAILURE BSOD’s when installing Windows 8 on my SuperMicro workstations. It turns out that the problem goes away when I use a PCIe slot associated with CPU #1, instead of a slot associated with CPU #2.

Some history on my adventures with Windows 8 and SuperMicro SuperWorkstations:
I got ACPI_BIOS_ERROR BSOD’s while installing Windows 8, SuperMicro provided a Beta BIOS that resolved the problem.
The Windows 8 install hangs if installing to an SSD drive on an LSI 2308 SAS controller, that issue is still unresolved, but can be worked around by connecting the SSD to the Intel SATA controller.
I got VIDEO_TDR_FAILURE BSOD’s while installing Windows 8 with an NVidia Quadro 5000 graphics card, same with an ATI FirePro V7900 or an NVidia GeForce GTX 680 or an ATI HD 7970. And this post is about resolving that problem.

WordPress.com 404 With Blogger Permalinks

Tue, 07 Aug 2012 00:02:52 +0000

Part of the research I did before migrating from Blogger to WordPress.com, was to make sure that current Blogger permalinks would resolve correctly once the old posts were imported into WordPress.com. At the time all seemed fine, but soon after migrating, I received alerts from Google Webmaster Tools that there is an increase in site errors, specifically 404 errors.

Some background: Permalinks are the URL’s that point directly to specific posts on the blog. These URL’s are known by search engines, are shared on forums, and are basically the static address of posts. Blogger and WordPress.com use different styles of permalinks. WordPress.com allows some customization of permalinks, but unlike WordPress.org, there is no support for custom plugins to handle rewrites for permalinks, 302’s or 404’s.

Windows 8 Install Crash With NVidia Quadro 5000

Mon, 06 Aug 2012 08:45:13 +0000

I got Windows 8 RTM installed on my two SuperMicro SuperWorkstation machines, with a bit of trouble along the way, but nothing I could not work around. But, I ran into a problem with NVidia Quadro 5000 cards causing a VIDEO_TDR_FAILURE BSOD during the Windows 8 install process.

I was running my two workstations with ATI FirePro V7900 graphics cards, but I decided I wanted a bit more rendering horsepower. I wanted a card that had a good balance between modern architecture, great 2D performance, good 3D performance, OpenCL or CUDA support, and reasonable power consumption. I found the Tom’s Hardware Workstation Graphics 2012 benchmark site to be very informative, and I decided that the NVidia Quadro 5000 was a very good choice.

Windows 8 Install Hangs Booting From LSI 2308 SAS Controller

Mon, 06 Aug 2012 04:29:48 +0000

I’ve previously posted about problems installing Windows 8 on SuperMicro machines, and that SuperMicro released a Beta BIOS that solved the install problems. I’ve since run into two more problems; the install hanging when booting off the LSI 2308 SAS controller, and a BSOD when using a Quadro 5000 video card (more on that in a later post).

I have two SuperWorkstation machines, a 7047A-T using an X9DAi motherboard, and a 7047A-73 using an X9DA7 motherboard.

SuperMicro Beta BIOS supports Windows 8 and Server 2012

Mon, 30 Jul 2012 20:15:32 +0000

In a previous post I reported that my SuperMicro SuperWorkstation 7047A-T failed to install Windows 8 or Windows Server 2012 due to an ACPI_BIOS_ERROR. I contacted SuperMicro support, and I was informed that new BIOS releases are on their way that will support Windows 8 and Server 2012.

This morning I received an email from SuperMicro, with a new Beta BIOS for the X9DAi motherboard used in the 7047A-T. The new BIOS allowed me to install Windows 8 and Server 2012.

Debugging Windows 8 Install BSOD

Fri, 20 Jul 2012 22:04:27 +0000

In my last post I described how to prevent Windows from automatically restarting when encountering a BSOD during the OS install process. This allowed me to see the ACPI_BIOS_ERROR fault code while installing Windows 8 on my new SuperMicro workstation. The new Windows 8 BSOD page looks friendly, but no longer displays any error parameters other than the main fault code.

In order to get additional details of the crash, I had to hook up a kernel debugger to the machine. Windows 8 adds USB3 and TCPIP kernel debug support, and I will describe how I used the TCPIP network option to capture details of the crash.

Windows 8 and Server 2012 on SuperMicro results in ACPI_BIOS_ERROR BSOD

Fri, 20 Jul 2012 00:59:01 +0000

I ran out of disk space on my development workstation, all those VM images add up. The machine has four drive bays, and all four have 3TB drives. I can replace the 3TB drives with 4TB drives, but migrating the RAID5 array will be time consuming and risky. I can add an external SAS storage enclosure, but they do not power down when the machine goes to sleep. So I looked at buying a new machine with more drive bays.

CrashPlan Memory Utilization

Sun, 15 Jul 2012 22:39:14 +0000

I’ve been using CrashPlan as an online backup solution for quite some time, and it works really well.

I like the fact that I can subscribe to the consumer plan, with almost 3.5TB of data backed up, and that the backup client installs on a server OS. Many of the other “unlimited” backup providers I tested have restrictions in place that make such a setup impossible.

CrashPlan sends email notifications about backup status, and I noticed that something was wrong with the backup:

DELL 2408WFP losing settings on power cycle

Sun, 05 Jul 2009 21:39:00 +0000

In my last post I discussed the calibration of my DELL 2408WFP monitors.

After calibration, and changing the monitor settings, the monitors looked pretty good, but I later found that the monitor colors looked all weird again.

It turns out that the monitors reverted to their default settings, invalidating the calibration.

It seems to me that as soon as my PC goes to sleep, or the monitors go into power saving mode, or power off, that on turning back on they revert to default settings.

How difficult can it be to transfer a .name domain?

Sun, 25 May 2008 00:52:00 +0000

How difficult can it be to transfer a .name domain?

I was reading an article where it was noted that .name names can now be used for OpenID registrations.

With a little more research I found that the sites only supported new registrations, unfortunately they did not support transfers.

Several years ago when the .name domains were new and the in thing to do, I registered my pieter.viljoen.name domain and pieter@viljoen.name with Register.com.