Run these commands to install cert snap install core snap refresh core snap install –classic certbot ln -s /snap/bin/certbot /usr/bin/certbot snap set certbot trust-plugin-with-root=ok # make sure firewall port 80 is unblocked and no other software is running on port 80 already certbot certonly –standalone # verify certbot timer exists to renew certificate systemctl list-timers […]

I just had to reset the password on a modern Windows 8 laptop and learned the following things. First, to recogize the USB device I had to turn off Fast Boot mode in the BIOS. Then I had to turn off secure boot and choose CSM mode instead of UEFI so it would boot the […]

You could just link to catalina.sh and get the basic stop/start functionality working but it has some drawbacks: Sometimes tomcat doesn’t stop gracefully and you have to reach for ps, grep and kill You have to sometimes pass in some configuration options to Tomcat to enable JMX, increase the max memory it can use, etc. […]

I was getting the following error in my log file and I couldn’t connect to my imap server using Thunderbird. Mar 1 13:35:19 ltps imapd[12525]: imap service init from 192.168.1.42 Mar 1 13:35:19 ltps imapd[12525]: Unable to accept SSL connection, host=dave [192.168.1.42] Mar 1 13:35:19 ltps imapd[12525]: SSL error status: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number It […]

Sometimes during development Tomcat will stop responding and won’t gracefully shutdown. I then have to figure out which java process is Tomcat and kill it. Usually the easiest way is to find out which process is using the port Tomcat is running on. Here is a powershell script that finds all processes running on port […]

I could not figure out how to get this to work. I think it’s because I didn’t understand that the $ signs were being used to call a macro. I would like to document this in detail here for others in case you’re in the same boat. Here is the command I’m using. define command{ […]

I would like to start hacking on these remotes. They are universal programmable remotes with Wi-Fi, a USB connector, a color screen, a built-in simple web browser and they run on Windows Mobile. One of the features I really liked on my ESPN Remote is the ability to view TV listings on the small screen, […]

By default, the home and end keys do not work if you SSH using PuTTY to a Debian box. Here’s the easiest work-around I’ve found. In PuTTY set the  Terminal-type string under Connection > Data to “linux” instead of “xterm”. This also makes dark colors much brighter, which is great for editing files with comments; […]

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