If your Super Admin username is something easily guessed, you have already given away half of the login info required for a hacker to have his or her way with your site. This is especially true if your Super Admin username is "admin" - a well known default username from a number of Joomla version ago. How to change your Super Admin username to something other than "Admin" (or something else) is what today's Maintenance Monday is all about.
Most of us know the frustration of trying to upload a file to our Joomla sites and getting the message that the file size is too big! The first place to try and solve this problem is look into, and possibly change, the upload limits in the PHP settings of your web hosting account - specifically "post_max_size" & "upload_max_filesize."
How to investigate and/or change the "post_max_size" & "upload_max_filesize" PHP settings of your Joomla site's web hosting account is what today's Maintenance Monday is all about.
It's now time to run your Joomla site on at least PHP 7.1. as PHP 7.0 has reached its end of life and is no longer being developed or supported, except for security updates for a few more months. How to change the PHP version your Joomla site is running on is what today's Maintenance Monday is all about.
If you are getting the following warning on your Joomla Admin console, this tutorial will help you: "Warning Your PHP version, 7.0.31, is only receiving security fixes at this time from the PHP project. This means your PHP version will soon no longer be supported. We recommend planning to upgrade to a newer PHP version before it reaches end of support on 2018-09-03.
Joomla will be faster and more secure if you upgrade to a newer PHP version (PHP 7.x is recommended). Please contact your host for upgrade instructions."
The Template Module Position Preview Mode is a great tool when you are debugging and developing your Joomla site. It's also very useful for seeing what module positions are available in a web site you take over from someone else. However, leaving this setting enabled gives away info that hackers can try to use against you. How to disable the Template Module Position Preview Mode is what today's Maintenance Monday is all about.
The caching system in Joomla allows for faster page load speeds. Instead of recreating every last little bit of each page each time it is called for, the caching system takes snapshots (if you will) of sections or even whole pages.
This cuts down on the time it takes to draw each page on your site as visitors request them within the period of time you set your cache items to expire. How to enable caching in the Joomla configuration is what today's Maintenance Monday is all about.