Part 2 - fail2ban on a proxmox host Part 1 was about the insecure service (rpc) which is rolled out in the default proxmox installation. You can find the article here. In this article we want to f...

In an absolute buying frenzy I rented a new server for my web services, gaming servers and so on. It was immediately clear that I again throw a proxmox hypervisor on it and since the new server is ...

I bought a HP Printer Color Laser MFP 178nwg for my homeoffice in my new home. Using it under windows is not a problem. You just need to install the HP-Tools and then it should work. But on (arch/m...

Article updated on: 05.01.2022 Zabbix, a very comprehensive monitoring system, which is a very nice alternative to the well-known monitoring systems Cacti and Nagios. In addition to extensive exis...

I was just allowed to update the PHP version on a web server and would like to share the procedure with you here. With this procedure, I was able to carry out an update within the 7.x releases with...

I recently wrote a Flask web application in Python. When I put it online, I of course ran Nikto over it. Since I was immediately confronted with the usual suspects, I wanted to write down the solut...

MATRIX calls… …from behind the NAT. Can you hear it? What (are you smoking)? Haven’t you heard? In the ocean of FOSS tools and VoIP clients that is out there, fighting for dominance, especially in...

Update: Updated the command to rebuild the zammad searchindex. I would like to briefly tell you about a small and quickly solvable problem that hit me in my daily work environment. Recently I ...

Passwords, a necessary evil and often the only protection against access to one’s own identity (facebook) or other services. But now it happens that we administrators sometimes have to exchange pas...

Ever wanted to use ZABBIX to monitor Kubernetes resources? Just recently, we got the chance to play around with some Kubernetes resources and create solutions to integrate them into existing envir...