Uncategorized on David P. Discher

Web Site exported to Hugo

Mon, 02 Nov 2026 04:50:34 +0000

Website exported to hugo

Exported my web site from wordpress to hugo static generator.

OM615 Kitchen Refresh Idea 2021

Wed, 20 Jan 2021 22:25:22 +0000

Idea for. two tone – with roll up door for “coffee” bar.

An idea I like for backsplash.

Awesome Idea for tones and how to slide the color into the frig box.

Also like this for backsplash.

MTCH101

Sun, 20 Dec 2020 22:51:13 +0000

MTCH101 – Single-Channel Proximity Detector Demo and Hookup

My values are a bit different – probably because I was out of 10Ks. These are all 5% standard resistors. Running 220 on the LED, because of the LED I’m using. Unclear in video what power supply I used, but when dusting this off in Dec 2020, I used a 5v @ 1amp USB Charger – which read ~5.2v without load.

The Proximity Sensor is just a wire here, and the type of wire, amount of insulation, length, affects all kinds of stuff.

Facebook Health Update Posts – 2020

Sat, 19 Dec 2020 23:23:20 +0000

March 25 – ER Trip for Back Pain
- https://www.facebook.com/daviddpd/posts/10157900210540874
March 27 – Rhomboid Muscle Spasm
- https://www.facebook.com/daviddpd/posts/10157908222820874
May 8 – Paralyiszed –
- https://www.facebook.com/daviddpd/posts/10158065256240874
May 13th – The Phantom back Pain
- https://www.facebook.com/daviddpd/posts/10158082573345874
May 14th –
- https://www.facebook.com/daviddpd/posts/10158083797505874
May 16th Hair Cut
- https://www.facebook.com/daviddpd/posts/10158090694915874
- https://www.facebook.com/daviddpd/posts/10158090915515874
May 24 – The Complication: Attack of Staphylococcus
- https://www.facebook.com/daviddpd/posts/10158115894090874
May 31 -RIP: Lucy • Oct 2004 ~ May 31, 2020
- https://www.facebook.com/daviddpd/posts/10158137278225874
May 31 – Pic line
- https://www.facebook.com/daviddpd/posts/10158137888315874
June 1
- https://www.facebook.com/daviddpd/posts/10158139886685874
- https://www.facebook.com/daviddpd/posts/10158140322095874
June 4: Four Weeks
- https://www.facebook.com/daviddpd/posts/10158149266570874
June 8th – WBC
- https://www.facebook.com/daviddpd/posts/10158161468210874
June 10th – WBC – Nadir’ed !
- https://www.facebook.com/daviddpd/posts/10158167077950874
June 11 – Stanford Hospital Breakfast
- https://www.facebook.com/daviddpd/posts/10158169466925874
- June 11 – Transport !
  - https://www.facebook.com/daviddpd/posts/10158169980890874
  - https://www.facebook.com/daviddpd/posts/10158170367295874
June 12 – Santa Clara Valley Medical Center – already pisses me off
- https://www.facebook.com/daviddpd/posts/10158172216560874
- https://www.facebook.com/daviddpd/posts/10158172465430874 (horrible food)
June 13 – Correct the record, but still …
- https://www.facebook.com/daviddpd/posts/10158175116865874
June 14 – Work from Rehab
- https://www.facebook.com/daviddpd/posts/10158178802885874
June 19 – IV issues
- https://www.facebook.com/daviddpd/posts/10158192886825874
- https://www.facebook.com/daviddpd/posts/10158193149980874 (hair loss)
June 24 – The Return Home
- https://www.facebook.com/daviddpd/posts/10158196008910874
June 25 – Reunited with my Angel
- https://www.facebook.com/daviddpd/posts/10158209949755874
June 29 – Pill board
- https://www.facebook.com/daviddpd/posts/10158223873425874
July 4th – Caturday with Angel
- https://www.facebook.com/daviddpd/posts/10158240722930874
July 5th – Selfie
- https://www.facebook.com/daviddpd/posts/10158243767125874
July 14 – Photo shoot with Angel
- https://www.facebook.com/daviddpd/posts/10158269357885874
July 15th – The Boring Musical Montage
- https://www.facebook.com/daviddpd/posts/10158272119265874
Aug 6 Wheelchair and coffee
- https://www.facebook.com/daviddpd/posts/10158328519700874
Aug 6 – Four Cycle of Chemo
- https://www.facebook.com/daviddpd/posts/10158328630930874
- https://www.facebook.com/daviddpd/posts/10158330287785874 (aug 7)
Aug 15 – Caturday with Angel
- https://www.facebook.com/daviddpd/posts/10158350385590874
Aug 17th – Angel is struggling
- https://www.facebook.com/daviddpd/posts/10158355673615874
Aug 19th – RIP: Angel – Nov 2002 – Aug 19, 2020
- https://www.facebook.com/daviddpd/posts/10158359500205874
Sept 10th – I can drive !
- https://www.facebook.com/daviddpd/posts/10158411016940874
Oct 3th – The Rise of DPD
- https://www.facebook.com/daviddpd/posts/10158464027470874
Oct 16 – Post chemo PET – No Cancer detected
- https://www.facebook.com/daviddpd/posts/10158490577660874
Dec 19 – Recovery Continues
- https://www.facebook.com/daviddpd/posts/10158630196955874

Fujitsu ScanSnap S1500M, macOS 10.15 Catalina & SANE

Sat, 11 Jan 2020 21:50:09 +0000

Fujitsu ScanSnap S1500M, macOS 10.15 Catalina & SANE

Fujitsu abandoned support for ScanSnap S1500M with MacOS 10.15 Catalina, but open Source SANE (Scanner Access Now Easy) allows it work on MacOS and Linux.

I’m finally taking the plunge, and slowly moving my 3 macs from 10.14 to 10.15. One issue was the ScanSnap S1500M. I search hi and low, read reviews and software support and bought the ScanSnap S1500M used on Amazon of $99 in January 2019. Unfortunately, I didn’t realized Fujitsu would be so lame as to end support. Yes, VueScan and ExactScan both support this scanner, and work well, but this is well over $100 of software for a $99 scanner.

Xen XCP-NG 8 PXELINUX CFG for Supermicro X9 SOL Serial Console on COM2

Sun, 15 Dec 2019 18:35:31 +0000

label xenserverCom2HVC
 MENU LABEL ^XCP-NG Installer COM2-HVC
 kernel mboot.c32
 append xcp-ng/xen.gz dom0_max_vcpus=2-4 dom0_mem=2048M,max:4096M com2=115200,8n1,0x2f8 console=com2 --- xcp-ng/vmlinuz xencons=ttyS1 console=hvc0 earlyprintk=xen nomodeset install --- xcp-ng/install.img

All the files above, including the PXELINUX .c32 are on the xcp-ng ISO image. (See /boot in the ISO Image).

Then copy the entire contents of the ISO to a an HTTP directory. On FreeBSD, I created mkdir -p /usr/local/www/apache24/data/xcp then copy sudo sh -c "tar -cf - . | tar -C /usr/local/www/apache24/data/xcp -xf - " … this then works with with the default configuration from www/apache24.

FreeBSD rc.conf to rc.conf.d one liner

Wed, 27 Nov 2019 23:17:36 +0000

cat rc.conf | awk -F _ '{print $1}' | sort | uniq | xargs -I % sudo sh -c "grep ^% rc.conf >> rc.conf.d/%"

Results may vary. Will handle basic SERVICE_* names …

MariaDB 10.4 – with Sysbench FreeBSD, Linux (CentOS) and ZFS

Fri, 15 Nov 2019 19:32:51 +0000

Software & Hardware Setup

Linux
- Linux 3.10.0-1062.1.1.el7.x86_64 #1 SMP Fri Sep 13 22:55:44 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
- CentOS Linux release 7.7.1908 (Core)
- kmod-zfs-0.8.2-1.el7.x86_64

FreeBSD

FreeBSD 12.1-STABLE FreeBSD 12.1-STABLE r354267 DPD amd64
- ( ~ 12.1-release, from 12-stable svn )

 <li>
 base zfs in 12.1
 </li>
 <li>
 openzfs-kmod-2019101600
 </li>
 <li>
 AVAGO MegaRAID SAS FreeBSD mrsas driver version: 07.709.04.00-fbsd
 </li>
</ul>

Hardware
- Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz, Dual Sockets
- Supermicro X10DRH-CT
- 128GB RAM
- AVAGO/Broadcom 3108 MegaRAID (Integrated)
  - Firmware Package Build = 24.21.0-0028
  - Firmware Version = 4.680.00-8290
  - RAID50
  - Cache : Read Ahead Always, Always WriteBack, Direct
  - Stripe 1MB
  - 8 x MZILS480HCGR Samsung PM1633, 480GB TLC SAS 12Gbps

Testing Script

#!/bin/sh
os=`uname`


if [ "${os}" == "FreeBSD" ]; then
	TEST="/usr/local/share/sysbench/oltp_read_write.lua"
	SOCK="/tmp/mysql.sock"
else
	TEST="/usr/share/sysbench/oltp_read_write.lua"
	SOCK="/var/lib/mysql/mysql.sock"

fi

OPT1="--mysql-user=sysbench --mysql-password=abcd1234 --mysql-socket=${SOCK} --mysql-db=sysbench --tables=2 --table-size=500000000 --events=0"

sysbench ${TEST} --threads=8 ${OPT1} --time=600 --db-ps-mode=disable --report-interval=30 run
sysbench ${TEST} --threads=8 ${OPT1} --time=3600 --db-ps-mode=disable --report-interval=300 run

OPT2="--delete_inserts=2 --index_updates=2 --non_index_updates=0"

sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=600 --db-ps-mode=disable --report-interval=30 run
sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=3600 --db-ps-mode=disable --report-interval=300 run


OPT2="--delete_inserts=5 --index_updates=5 --non_index_updates=0"

sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=600 --db-ps-mode=disable --report-interval=30 run
sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=3600 --db-ps-mode=disable --report-interval=300 run

OPT2="--delete_inserts=10 --index_updates=10 --non_index_updates=1"

sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=600 --db-ps-mode=disable --report-interval=30 run
sysbench ${TEST} --threads=8 ${OPT1} ${OPT2} --time=3600 --db-ps-mode=disable --report-interval=300 run

Virtual Box, Disk Images, and EFI

Thu, 06 Jun 2019 20:44:51 +0000

To use it with VirtualBox we need to convert it to the VDI format:

VBoxManage convertdd sdb.raw sdb.vdi --format VDI

To use it with VMware we need to convert it to the VMDK format:

VBoxManage convertdd sdb.raw sdb.vmdk --format VMDK

VBoxManage modifyvm "VM name" --firmware efi

To switch back to using the BIOS:

VBoxManage modifyvm "VM name" --firmware bios

CentOS-RHEL-LVM – unfortunately

Thu, 06 Jun 2019 20:19:18 +0000

Import /active a volume group from a loop device.

vgscan
vgchange -ay vg0
mount /dev/vg0/root /mnt

FreeBSD – vm-bhyve config for CentOS 7.6 1810

Thu, 23 May 2019 18:51:03 +0000

CentOS 7.6 1810 – has released with a buggy EFI loader … which throws MokListRT error, even with bhyve UEFI booting. Here is the grub loader on how to to boot the CentOS 7.6 1810 DVD ISO.

loader="grub"
 grub_install0="linux /isolinux/vmlinuz LANG=en_US.UTF-8 KEYTABLE=us SYSFONT=latarcyrheb-sun16 console=ttyS0"
 grub_install1="initrd /isolinux/initrd.img"
 grub_run0="linux /vmlinuz-3.10.0-957.el7.x86_64 root=/dev/mapper/centos-root LANG=en_US.UTF-8 KEYTABLE=us SYSFONT=latarcyrheb-sun16 console=ttyS0"
 grub_run1="initrd /initramfs-3.10.0-957.el7.x86_64.img"

Psoriatic Arthritis: Return Of The Arthritic Pain

Fri, 03 May 2019 03:38:14 +0000

The pain is back.

So, I’m switching to Hurmia. In some minor miracle, insurance has approved all this within two days. I’ve had to wait till today, May 2nd for my first dose … which I got this morning. A nice part of this is that it is a self injectable, can be at room temperature for up to two weeks. It was also completely painless, I didn’t even feel the needle. Will see in two weeks when I need to do it myself, as this time was done with the nurse for as a “training” session. I’ve had some mild relief since, but might take longer for the full effectiveness.

A FreeBSD Router as an OpenVPN Client – Part 2: DNS Forwarding

Sat, 27 May 2017 14:29:58 +0000

So, I’m not sure why this didn’t work the first time, but got forwarding for just a single domain working in my unbound config for my vpn on my FreeBSD router.

It was seriously this simple:
 forward-zone: name: "ixsystems.com" forward-addr: 10.x.0.a forward-addr: 10.y.0.a forward-addr: 10.z.0.a 

A FreeBSD Router as an OpenVPN Client

Tue, 23 May 2017 15:46:20 +0000

Well, I’m back doing some work over at iX Systems, and really did not want to run Tunnelblick on my mac. The VPN for ix does do split tunnel/routing, however it pumps all the DNS over the tunnel … which makes accessing my local RFC 1918 NATed network hard to use.

I have Comcast Business Internet, and from all my research, Comcast Business Internet with Static IPv4, the modem cannot be made a raw/dumb bridge. A bridge mode modem, would release the statics. So I have modem, going into a pretty standard FreeBSD router/firewall setup, using NAT and ipfw. Yes, I like ipfw syntax better than pf. Whatever.

The War on Mother’s, Father’s, Christmas et al Days

Tue, 09 May 2017 14:09:09 +0000

In response to the following article, I was going to leave this as a comment to someone else posts, but decided to make this a personal post/rant in a more general area – are us lefties too politically correct ?

An open letter to pastors (A non-mom speaks about Mother’s Day)

Even though I am a man of 40 years old and child-less(*) man, luckily, I don’t believe in or practice any of these mythologies, so a hypocritical old child-less white man’s sanction or support from a conceived supreme being – is pretty meaningless for me.

The New McCarthyism

Sat, 28 Nov 2015 06:12:30 +0000

I am declaring, based on the bigoted and xenophobic responses to certain religions and peoples’ nationals origins, that we have entered an era of “New McCarthyism”

The New McCarthyism is the practice of vilifying people of a race, religion or national origin as terrorists without proper regard for evidence.

(I’m looking for a new name than “The New McCarthyism” – but nothing seems to work – open to suggestions.)

For reference, the the term was coined in the early 1950’s, named after Republican U.S. Senator Joseph McCarthy of Wisconsin:

Calling Out Someone’s Religious Beliefs

Sat, 19 Sep 2015 00:22:18 +0000

Again, President Obama is being called a non-America (apparently Hawaii isn’t part of the United States of America), and that he is a Muslim (or maybe more correctly believes in Islam, which is not his public statement of his religion).

As an American, with freedom of religion guaranteed to me, and every other American, I absolutely give Zero Fucks what religion Obama, Trump or anyone is associated with. One is also allowed the freedom to change their religious beliefs.

Propaganda vs Facts: “major abortion centered company”

Wed, 16 Sep 2015 23:19:13 +0000

So, I will have a lot more to say on this topic, but I want to make one point really quickly.

A “friend”, recently shared Alliance Defending Freedom’s video of a 10th undercover about Planned Parenthood. In a volley of exchange comments, the conversation (which I will link here, once redacted to protect the “friend”, more context below) – she made this statement:

[…] I’d love to stop funding a major abortion centered company.

Yet another tweak to flickr-share-with-attribution

Sun, 25 Jan 2015 21:47:41 +0000

So, a few bug fixes to my little utility that will hopefully finally allow me to push past my procrastination and create my casting call blog.

I moved to using iFrames. This is an attempt to be compatible with different themes. The CSS is also local to the iframe, so the flickr embedding should be persevered between themes. But, I haven’t actually tested that yet.

Of course, these charges are pushed up to my github repo : daviddpd/flickr-share-with-attribution.

wp flickr-share-with-attribution – Creative Commons and All-Rights Reserved

Sun, 07 Sep 2014 03:40:55 +0000

Well … I haven’t explained whole reason why I wrote this little utility, and well, not going to explain it now.

I’ve thinking about it and I still want to be able to link to “All Rights Reserved” images. I could probably embedded them anyway with the copyright notice, or contact each person and ask their permission. It just seems like a lot of work. For this use-case, I’m going to just link them.

Flickr-WordPress – I had to write it

Tue, 19 Aug 2014 04:58:47 +0000

So, after all the tinkering, I had to write it myself. I couldn’t get anything exactly right, so I wrote something with Flickr APIs to generate the HTML that I wanted, as well as following Creative Commons best practices for attribution. It’s just a stand-alone PHP CLI script, with hopes and desires to grow up to be a Word Press Plugin.

The code is up on github, flickr-share-with-attribution, under the 2-clause BSD license.

Trying to Find a Great Flickr Word Press Plugin

Mon, 18 Aug 2014 03:01:35 +0000

I might just have to write my own Word Press – Flickr plugin. There are SOOOO many, yet I have not found one that does what I’d like it to do. I would like to simply embed the photo with credit, title and the link back. And maybe the description too. I already know the photo ID, I don’t need discovery or search features, I just need the inserting. The flickr BBcode embed mark-up is almost what I want, and would be happy with. I’ve tried the BBcode plug-ins in Word Press, but it wasn’t clean enough.

Testing with Lucy

Thu, 03 Jul 2014 03:23:58 +0000

Playing around with wordpress plug-ins for flickr and twitter. Here’s a picture Lucy that I have on my business cards.

ALT-CONTROL-DELETE

Tue, 01 Jul 2014 19:56:10 +0000

Reset and reboot. Let’s get started.

I’ve wanted to start a blog for while, continuously having to put it off. What better day, than July 1st, the start of the 3rd quarter to kick off a blog. I do not have any firms plans for what will be here, however there are a lot of things in my head, and many different ways this could go.

Things will definitely change here – don’t really like the colors and theme yet, so it will change.