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Remote Monitoring of KDE desktop

In the COVID-19 times it can be challenging to work and to have kids who now have 100% of their schooling done remotely and are required to be online for a large part of the day. Social media sites are extremely addictive and kids are extremely vulnerable to forming addictive behaviors. So can you have a small window that shows what your kids (or remote workers) are doing that you can re-connect to if/when they kill the remote connection?

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Renewing LetsEncrypt SSL/TLS Certificate for Mail Server behind HaProxy

Best practices is having a valid cert on the mail server(s), to only accept encrypted traffic (e.g. not listen on port 80) and to redirect non-encrypted port 80 traffic to SSL/TLS port 443. 

However if you use LetsEncrypt, you need to pass the inbound LetsEncrypt request without a redirection. There are numerous ways to do this, but if you want to not have to create a custom firewall rule for LetsEncrypt traffic and not have to worry about non-standard TCP ports read on...

Steps for this:

Another myth of the Animal Kingdom ... human persistence hunting.

Both of my parents are Anthropologists. So before I could walk, I had been going to Anthropological meetings and listening to the adults as they talked. I learned that if you just sat around and were quiet, you became part of the furniture and adults would just talk as if you weren't even there. In a way, my brother and I were "child anthropologists" studying the anthropologists at their conferences.

Creating a bootable USB for a HP X2

Problem: The HP X2 has only one USB drive port. Need to boot and run Ubuntu from a USB and have the data persist (e.g. not just a standard LiveUSB)

Solution:

1) Have:

  • a Bootable DVD with Ubuntu on it.
  • USB DVD drive
  • USB to be destroyed
  • Powered USB hub

2) Boot with the USBHub+DVD+USB-DVD.  Do not put in the USB drive yet.

3) Select "Try Ubuntu"

4) Insert USB into USBhub and observe the /dev/XXX assigned. (In this case it was /dev/sda)

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