Handling Server Errors
The first order of the day was a custom 404 page. This also tests the use of a .htaccess (a configuration file for use on web servers running the Apache Web Server software) I need to see if I can get .htaccess files to control the behviour of protected directories.
Custom error pages
This is a topic that I covered in detail on tempusfugit.ca
Protected Directories
I managed to get this to work pretty well on my own Linux webserver but I am currently of the opinion that there is a problem with the Plesk Control Panel with repect to "Let's Encrypt". This seems to be confirmed on the HostingUK support blog.
Update: It now seems to work. Perhaps this was related to the problem that I was having with php. In any case it now works. Also, Let's Encrypt has disapeared from the HostingUK control panel.
The reason that this is being discussed here is that the .htaccess file is used/can be used to protect directories and to redirect errors such as file not found. My previous research and development on a linux server ventured into the concept of using a cgi (SSI - Server Side Includes) to handle errors depending on what a visitor was looking for. I now have SSI and cgi support on my current server.