How to backup LXD containers
HowTo

How to backup LXD containers

LXD is a hypervisor for Linuxcontainer, which is available in Ubuntu since several versions. A Linux container is basically like a virtual machine, only more lightweight. We use LXD / LXC for many of our applications at school. LXD is easy to use and there are several reasons why we Read more…

scheduling in GRUB
HowTo

How To Set Up Scheduling In GRUB

GRUB 2 has outsourced many functions into modules. This makes it possible to load only the required functions and thus smaller core images are possible. You can also use these modules to extend GRUB, e.g. to implement scheduling in GRUB. This makes it possible to start an particular operating system Read more…

update Check_MK
HowTo

How to update Check_MK

We use OMD/Check_MK to monitor our IT infrastructure. It is easy to use and we always know the status of our network components, servers, printers, etc. Until now we used the “old-stable” version (1.2.8), but the CPU usage increased significantly, so it was time to upgrade to the current stable Read more…