Rspamd is a widely used email and spam filtering solution. It consists of a set of rule-based filters, blacklists, greylisting, and also a self-learning Bayes filter. Sometimes, it might happen that the Bayes filter starts to behave oddly and flag the wrong emails. In such a case, you can either try to start passing the ... Read more
I've got the following error message on Debian Linux with Courier IMAP server: Filesystem notification initialization error -- contact your mail administrator (check for configuration errors with the FAM/Gamin library) when I tried to access an IMAP share. The reason for the problem seems to be that the "fam" package was not working correctly. The ... Read more
The Nginx web server has a max. body size limit of 1 MB for requests as default. This might be too low for file uploads in scripts and you will see the following error message when you try to upload a file: 413 Request Entity Too Large The configuration variable for this option is "client_max_body_size" ... Read more
When working with your computer, you have probably come across files in .zip or .rar format. These are so-called packed or compressed files. Their function is to store multiple files and/or folders in a single file and compress them so that they are easier to send and waste less space. Windows has a built-in function ... Read more
When you try to copy files from your hard drive to an external device such as an external hard drive or USB stick, you may get an error message saying that there is no free space left on your device, even though you just deleted everything to make room. This is most likely due to ... Read more
Resetting your system's root password may be a necessary step if you have forgotten it or have bought a used computer that you don't want to set up a new one. Doing so without any installation medium saves you a blank CD and a bit of time. To start, restart your computer and get to ... Read more
Grub's default boot option is stored within a config file found on the partition where your Master Boot Record is located (if you had it installed previously, there may also be grub.cfg files on other partitions, but these won't affect boot sequence). Its direct path is /boot/grub/grub.cfg and it has to be opened as root, ... Read more
Maybe you have already come across applications that require you to rearrange things on your desktop for optimal visibility or which you only use in combination with other programs or items - an automated startup or rearrangement would come in handy in those situations. Monitor Processes with PowerShell The following little PowerShell script allows just ... Read more
Functions in Powershell are called without any comma or parenthesis, although they are defined using them. The correct way to call a function with two variable parameters would be: test $local1 $local2 The wrong way is: test($local1, $local2) If you put parentheses around your parameters, your input is treated as an array and thus the ... Read more
SSL (Secure Socket Layer) is used for encryption and decryption, processing of S/MIME signed or encrypted mails, generation of certificates, and more. To use it on Windows (32 and 64 bit versions), download the OpenSSL tools from code.google.com/p/openssl-for-windows/downloads/list. Uncompress it anywhere you like and start it by double-clicking the openssl.exe executable in the \bin folder. ... Read more