At our school we use Citrix Hypervisor (formerly XenServer) (soon xcp-ng) to virtualize our school server and other applications. Citrix provides XenCenter, a management tool for Windows. With it you can easily manage all virtual machines and make settings on Read more…
Digital signage offers new possibilities for schools. What used to be solved with posters on so-called “bulletin boards” or information boards is now increasingly being taken over by screens. Whether information about upcoming events, substitution plans, room signage or other Read more…
Some years ago we have started from scratch in our school IT infrastructure. More Open Source software (OSS) on our servers and clients was the plan. Did it work out? Was it the right way to go? Isn’t Open Source Read more…
At our school there are always power outages. Sometimes they last only a few seconds, sometimes several hours. To ensure that our IT infrastructure does not suffer from this, we have installed a UPS for our servers and network devices. Read more…
Our core infrastructure at the school is secured with a UPS. Unfortunately we always have power failures (mostly short ones) and with the help of our UPS we can at least bridge them a little. On our UPS hangs a Read more…
About a year ago I wrote about how to measure the air quality with a Raspberry Pi and a cheap sensor. Make sure to read that article first! We’ve been using this setup in our school and privately for a Read more…
School networks are becoming more complex as requirements grow. A school server, school-wide WLAN, the use of tablets and laptops in the classroom, a school cloud, uniform logins for all services – the requirements for a network administrator or service Read more…
For the monitoring of our network infrastructure we use Check_MK. Check_MK supports a variety of services and agents. Data can be monitored with the Check_MK agent, SNMP or simply by ping. In the past, we used to monitor our firewall Read more…
pfSense has a completely redesigned user interface since several versions (checkout our install guide). All settings can be easily reached and adjusted with this interface. The freely configurable dashboard is also a fine thing. However, there is sometimes the case Read more…
PfSense is an open source firewall solution that can be used at home, at school or in a company (see our install guide with hardware recommendations). In most cases you don’t want to connect clients exclusively via network cable, but Read more…
