For certain security-critical services or older projects, it can be useful to monitor file changes. Therefore, I took the time to write a small script that is stored directly in the home directory. The subdirectory, sender email, and recipient still need to be configured in the script. An email will be sent when new, deleted, …
Unfortunately, many PHP 7.4 scripts or web applications are still running on many servers. These are mostly old, unmaintained projects that cannot or should not go offline for a variety of reasons. The use of such web applications is increasingly becoming extremely insecure, PHP 7.4 offers a larger attack surface and in many cases the …
Today I would like to publish a short article with some examples how a firewall/WAF can be implemented with PHP. I have created 4 examples including a whitelist, a blacklist, a blacklist with a text file as IP blocklist and an example for the implementation of a mini-WAF. All code examples are designed to be …
There can be numerous reasons for this, ranging from incorrect file permissions to incorrect path specifications to corrupt image files. To at least check the image data for integrity the package “feh” can be used: ffmpeg is executed via PHP using shell_exec, so in the next step I tried the output to a log file, …
I took some time again and worked on a script for hourly MySQL/MariaDB database backups. The script is based on the PHP programming language and can therefore be used for almost all web applications (including the JTL store, of course). Additionally, the script has already been optimized for WordPress and Gambio. Update: With the PHP …
Sometimes it can be necessary to store within an array not only single values but several values as array. At this point I would like to help you with a syntax example: Otherwise, just note that in the above example, the array is simply stored in a variable, making it easier to pass later. Post …
With PHP it is relatively easy to build in a small PHP cache of your own. This is especially interesting if you need to retrieve and process data from “far away” or the PHP code basically needs a long time for its calculations. In the following example, the corresponding output is recorded and stored in …
Some of you may be facing the problem of having to embed images (which change from time to time) from a foreign domain (e.g. a cachet) on your website. Here the problem lies in the foreign domain of the corresponding provider, i.e. you would have to transfer the graphic to your server first and only …