Archive for 'Computing Notes'

Meal Plan and Grocery List maker Intro

November 3rd, 2025 – 7:18 pm
Tagged as: Computing Notes

This is is a placeholder page for Meal Plan and Grocery List Maker.  I will update this post shortly with some details about the app.

My refined direction is digital sovereignty

November 2nd, 2025 – 9:37 pm
Tagged as: Computing Notes

My refined direction is digital sovereignty via the old paths with a goal of writing at least one article per week. The complexity of the articles will change because many projects are planned for the long term, but getting started on them takes a very long time.. I setup a RAID 5 in my old [...]

Running old versions of Java Minecraft

October 22nd, 2025 – 5:27 pm
Tagged as: Computing Notes

One source for the Java 8 (1.8) runtime is the Oracle Archives page.  Another helpful one is the standard Java download page for the desktop Java Runtime Environment, JRE. I downloaded the Linux x86 (32-bit) version even though the host is a 64bit Linux.  The reason for that is that at some point in the [...]

.ssh config for Windows and Linux

October 18th, 2025 – 7:26 pm
Tagged as: Computing Notes

The ~/.ssh/config file works for OpenSSH on Windows and for SSH on Linux. To prevent disconnects, add the keepalive messages for all hosts. For specific hosts that use a specific key type, such as RSA on CentOS 6, add the specific algorithm via the HostkeyAlgorithms + functionality. To add a private key for SSH key [...]

Switch a data volume on Linux

October 17th, 2025 – 7:10 pm
Tagged as: Computing Notes

How to move /var/www/html/mydata/ to a new disk: 1. fdisk /dev/nvme4n1      1.i. create a new DOS partition and write it to disk 2. mkfs -t ext4 /dev/nvme4n1p1 3. lsblk -f (and copy the UUID for use in FSTAB)     3.i. a0e2e1e7-4034-4876-a005-ae5fcca39751 4. mount /dev/nvme4n1p1 /mnt 5. shopt -s dotglob 6. rsync -aulvXpogtr /var/www/html/mydata/* /mnt 7. edit [...]

Debian 12 Sources

September 6th, 2025 – 8:38 pm
Tagged as: Computing Notes

This is a listing of Debian sources for future reference.  Debian maintains  an archive of older versions on the Distribution Archives website.  It may be necessary at some point in the future to change the bullseye information below so that it points to the distribution archives. /etc/apt/sources.list.d/vivaldi.list ### THIS FILE IS AUTOMATICALLY CONFIGURED ### # [...]

Batch file with date and time for zipping

May 25th, 2025 – 10:07 am
Tagged as: Computing Notes

WinRAR offers great feature. It will create a zip file using a name mask.  That allows one to create a file with an excellent name via the right click menu.  Buying many WinRAR licenses becomes cost prohibitive.  This batch file will do the same thing using 7Zip on Windows. The batch file must be saved [...]

Data Science Time Warp Machine

February 23rd, 2025 – 6:51 pm
Tagged as: Computing Notes

Fedora 38 freezes up and crashes sometimes when using Gnome on bare metal.  This may be the result of Gnome reliability issues.  In a previous article I detailed creating a massive repo of Fedora 38, and I still have it.  I will not delete the 238GB repo because Fedora 40 is the last one with [...]

Blog code and general code release note system

February 22nd, 2025 – 8:19 pm

Today’s site updates including removing the RSS feed links. Kinsta provided source code.1  The code for functions.php to remove it is: remove_action( ‘wp_head’, ‘feed_links_extra’, 3 ); remove_action( ‘wp_head’, ‘feed_links’, 2 ); remove_action(‘wp_head’, ‘wlwmanifest_link’); Kinsta also provided another very useful function2 and that was one that removed the various update notifications in the dashboard. function kinsta_hide_update_nag() [...]

Monitoring network connections on Linux

November 25th, 2024 – 9:32 am
Tagged as: Computing Notes

Here is a great TCP/UDP Port finder tool.   This was useful for finding out which port “cbt” was in my Iftop listing.  It was 7777, which was in use for the Unreal Engine on an Ark: Survival Evolved game server. Iftop is the best real time network monitoring tool for Linux that has graced my [...]

Install cron on Fedora 38

October 21st, 2024 – 9:38 pm
Tagged as: Computing Notes

dnf install cronie systemctl enable crond.service systemctl start crond.service

Building an anti-bitrot bunker

October 20th, 2024 – 12:18 am
Tagged as: Computing Notes

When I first obtained a CompTIA A+ certification some time ago, the concept of bit rot related to what happens to software reliability as the number of updates to the system increases. Over time, software that worked in years past ceases to work as new system updates block system calls or change permissions and files [...]

Create a systemd service for YaCy

September 22nd, 2024 – 12:08 pm
Tagged as: Computing Notes

Create file /usr/lib/systemd/system/yacy.service and add this content: [Unit] Description=YaCy search server After=network.target Restart=always [Service] Type=forking User=yacy ExecStart=/opt/yacy/startYACY.sh ExecStop=/opt/yacy/stopYACY.sh Restart=on-failure RestartSec=1s [Install] WantedBy=multi-user.target Then use systemctl enable yacy.service.

Shrink Firefox Interface

June 24th, 2024 – 5:08 am
Tagged as: Computing Notes

Use about:config –> browser.uidensity . browser.uidensity is set to 0 by default.  Changer the  value to 1 and it takes immediate effect.

VirtualBox Disk Conversion

June 10th, 2024 – 1:58 am
Tagged as: Computing Notes

To convert a dynamic VirtualBox disk to a Fixed disk, run the following command: vboxmanage clonemedium disk /path/disk.vdi /path/newdisk.vdi -variant Fixed using –variant Standard would create a dynamic disk.  Then open the virtual machine and remove the existing disk and attach the new disk.  Then use the media manager to delete the unused media. Use [...]