Correcting SELinux denials including silent denials SELinux is a security enhancement for Linux that will encourage you to throw your server into a lake soon.Read more...

Snap aplications won't run from KDE Launcher but will from command line In a console window, run the following:Read more...

Running Asterisk with SELinux I'm not fully certain how much SELinux improves security, but I get paid by the hour, so it does improve my paycheque.Read more...

Configuring Asterisk 20 to Store PJSIP Endpoints in a Realtime Database This article describes the configuration files necessary to alter in order to configure Asterisk 20 to store PJSIP endpoints in a database.Read more...

SSH from RHEL 9 to RHEL 6 systems does not work (two solutions!) If you try to ssh between an old server and a new server, you may receive the error "no hostkey alg" or "no matching host key type found. Their offer: ssh-rsa,ssh-dss". If upgrading the old server is not an option, don't despair. You could reduce the level of security on the new server, but this is not desirable for obvious reasons. If the ECDSA algorithm is supported on the old server, you may be able to solve the problem by creating an ECDSA host key.Read more...

Setting up a "headless" VNC server on Raspberry Pi This is our procedure for setting up a VNC server on a Raspberry Pi running Raspbian 11 that has no monitor, keyboard, or mouse. Before the exit line in /etc/rc.local, add this:Read more...

OpenVPN - "Waiting for TUN/TAP interface to come up..." When using OpenVPN on Windows, we periodically experienced the error "Waiting for TUN/TAP interface to come up...". Sometimes a reboot solved the problem. OpenVPN's documentation suggested to reset the TCP/IP stack which worked, but reset the settings for all our network adapters, and did not permanently solve the problem.Read more...

Disable encryption for VNC on Ubuntu If you need to connect to a VNC server running on Ubuntu without encryption, run this command on the Ubuntu server:Read more...

This blog is now hosted with Amazon Web Services When I was 13, I bought a book called How to Program CGI With Perl 5.0 by Stephen Lines. Learning server-side scripting was like a whole new world. Back then, Javascript was not widely adopted, and with server-side scripting we could make websites do things we only dreamed of before. A few years later, my employer sent me to a seminar about building websites where the leader proudly informed us that anyone who had a website that wasn't dynamic didn't have what it took to succeed. I instantly agreed.Read more...

I'm using this post to keep track of different kinds of coffee Ever since I started drinking coffee, I decided it would be amusing if I never bought the same one twice. Results to follow...Read more...

Wahl Hair Clipper Pulls or Doesn't Cut Hair If your Wahl hair clipper pulls hair or simply doesn't cut it, you can correct the problem by adjusting the power screw, probably located on the side of the clipper.Read more...

Toro string trimmer loading instructions When loading a Toro string trimmer, the string should be wound in the direction of the arrows. The cartridge is to be turned in the opposite direction of the arrows.Read more...

Bambora process_transaction.asp error: "Declined: Entered Information Cannot Be Authenticated" If you are using Bambora's (formerly Beanstream) process_transaction.asp and receive the error "Declined: Entered Information Cannot Be Authenticated", you may find this frustrating, because although this error appears in their documentation, there's no information about what it means or how to solve it, which is basically useless.Read more...

Elementary School Mental Math Exercises Here are the online quizzes that we designed for practicing elementary school math: addition, subtraction, multiplication, division. Please share if you find them useful.Read more...

Automatically print WooCommerce orders Disclaimer: this doesn't have an easy solution, and the solutions that do exist are printer-specific, so we're not releasing this as a plugin. It will almost certainly need to be modified to fit your specifications.Read more...