Quota Info and URIBL_BLOCKED with SpamAssassin for Virtualmin

URIBL_BLOCKED Spamassassin beheben

Virtualmin is a web-based management interface for servers based on the Linux operating system. The software offers a wide range of features that allow users to manage their servers efficiently. Thus, Virtualmin can be used to install and configure various types of web applications, databases and email services on a server. The software supports a … Read more

Convert phone book from PBX to VCF / vCard

Telephone systems with an internal phone book allow easy dialing and recognition of callers on the connected system phones and within the system manufacturer’s software. But what to do if the phonebook with a few hundred contacts is to be transferred to another system which uses the VCF / vCard standard to import the data? … Read more

Debian with Samba4 as Domain Controller for Windows Environment – Workshop

A domain controller significantly simplifies the administration effort even in small environments with only a few Windows computers and allows users to log on and access data across devices. Samba4 on Debian is an alternative to the classic Windows server with Active Directory role. Debian uses far fewer resources than Windows Server and certainly runs … Read more

Raspberry Pi / Banana Pi RTSP Player with VLC

How can you bring the RTSP video stream from surveillance cameras to screens with as little delay as possible using inexpensive hardware? One possible solution is VLC on a Raspberry Pi or Banana Pi with the armbian operating system. The instructions work with both single-board computers in the cheapest edition and can certainly be adapted … Read more

TYPO3 / direct_mail: The body of “Symfony\Component\Mime\Part\TextPart” must be a string or a resource (got “bool”)

Initial situation The TYPO3 extension direct_mail does not send newsletters anymore. In the scheduler and in the system log the error message “Core: Exception handler (CLI): Uncaught TYPO3 Exception: The body of “Symfony\Component\Mime\Part\TextPart” must be a string or a resource (got “bool”). | TypeError thrown in file /…/vendor/symfony/mime/Part/TextPart.php in line 52″ Workaround Edit the file … Read more

SSL Certificates: Convert CRT to PFX for Microsoft Server / IIS

On the web, SSL certificates are often sold as CRT files in response to a self-generated Certificate Signing Request (CSR). The delivery from the provider usually includes the Root CA Certificate, one or more Intermediate CA Certificates and finally the certificate for the own domain in CRT format. However, Microsoft IIS and other server services … Read more

Zammad: Play audio files from attachment in browser

Zammad is a great ticketing system that allows for efficient handling of support requests. However, when used with answering machines or Voice2Mail systems, the system has a weakness. Audio files, which are attached to the email, are not played directly in the ticket and in the web browser itself, but must first be downloaded. For … Read more

Inaccessible Boot Device: Fix Windows Bluescreen

Windows Inaccessible Boot Device Bluescreen

Initial situation Windows 10 doesn’t boot anymore, a BSOD appears with the message ‘Inaccessible Boot Device’. Even booting in safe mode is no longer possible as a result. A repair installation with retention of all data and programs cannot be started, because the setup does not find a Windows installation, although the existing Windows partition … Read more