_worksheet.txt

------------
 2020-08-22
------------

-----------------------------------
On workstation "Max" (192.168.1.70)
-----------------------------------
wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

sudo apt-get --with-new-pkgs upgrade
# or 
sudo apt-get install <list of packages kept back>
#sudo apt-get install firefox-esr google-chrome-stable

sudo apt autoremove


$ uname -mrs
Linux 4.9.0-6-amd64 x86_64

$ hostnamectl
   Static hostname: gonzo
         Icon name: computer-desktop
           Chassis: desktop
        Machine ID: 583f9d59251944459752c3d67bd899ab
           Boot ID: 27559770be99497d87b18a5856bf9c8f
  Operating System: Debian GNU/Linux 9 (stretch)
            Kernel: Linux 4.9.0-13-amd64
      Architecture: x86-64


sudo su -
cd /etc/apt
fgrep -cir --files-with-matches stretch *
----------------
sources.list
sources.list.d/base.list
----------------

Edit the file /etc/apt/sources.list using a text editor and replace each instance of stretch with buster.
vim /etc/apt/sources.list
vim /etc/apt/sources.list.d/base.list

:%s/stretch/buster/gc


Update the packages index on Debian Linux, run:
  sudo apt update
Prepare for the operating system upgrade, run:
  sudo apt upgrade
Finally, update Debian 9 to Debian 10 buster by running:
  sudo apt full-upgrade
  sudo apt --purge autoremove
Reboot the Linux system so that you can boot into Debian 10 Buster


------------
 2021-07-11
------------
git stash push -m local-credential-file


# http://corntab.com/
# At 00 minutes past 6:00, 12:00, 16:00, and 23:00
0 6,12,16,23 * * *

# https://crontab-generator.org/
0 6,12,16,23 * * * mqtt --arg1 >/dev/null 2>&1

# https://crontab.guru/
# Good for verifying.


------------
 2023-09-07
------------
References:
http://www.steves-internet-guide.com/mosquitto-tls/
http://www.steves-internet-guide.com/using-lets-encrypt-certificate-mosquitto/
http://www.steves-internet-guide.com/creating-and-using-client-certificates-with-mqtt-and-mosquitto/
https://mosquitto.org/man/mosquitto-tls-7.html
https://github.com/eclipse/mosquitto/blob/master/README-letsencrypt.md

-----------------------------------
Error: The connection was refused.
-----------------------------------
mosquitto.conf
allow_anonymous true

https://github.com/tsi-software/Secure_ESP8266_MQTT_poc/tree/master/top-level-components/mqtt_server_setup#run-a-quick-test

Git Commit message:
Mosquitto config: allow_anonymous true
Update to version 0.0.4 and update copyright notices.