Allow Postfix to call custom scripts by using mail aliases
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Allow Postfix to call custom scripts by using mail aliases

Using custom mail aliases to run scripts is an existing practice. However, on modern Linux distributions it is blocked as a security risk. Following Postfix common guidelines do not allow for it to run the scripts. It reports the script as called, however – it does actually nothing. This has been verified on Oracle Linux…

Extracting PPPoE login details from a locked ISP router
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Extracting PPPoE login details from a locked ISP router

There are many internet service providers (ISPs) around the world that offer fiber internet connections, but sometimes you cannot access your PPPoE user details. This can happen if your ISP does not allow you to use your own router, or if you don’t have the login details for your router. There are ways to try…

An excellent alternative to ‘rsync’ for backups to cloud
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An excellent alternative to ‘rsync’ for backups to cloud

I have been using NextCloud for a long while now. It is a smart solution, and although I do not like its agent (I’ve had many problems with it around Hebrew file names on multiple types of operating systems, which never matured enough for a full bug description and details) – for an easy access…

RaspberryPi Zero loses connectivity
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RaspberryPi Zero loses connectivity

I have had a problem with RPI Zero. The system was working fine, and then it did not. I am using Raspbery Linux (Debian-based) with kernel 5.10.17+. Once a while (usually with network load) the system loses connectivity. Everything seems to be fine, if you have a serial/USB console there, but the wireless network fails….