Linux
Change BIOSGUID in Hyper-V machines Paid Members Public
Using templated virtual machines on hyper-v comes with some issues if you need to ensure that each VM has a unique identity. This guide will show how you'll assign a unique identity for linux VMs.
Migrating zabbix from mysql to timescaledb - introduction Paid Members Public
Depending on the size of your zabbix environment, you might want to migrate from mysql to timescaledb. This guide will show how this can be done.
Reducing ceph filesystem overhead on virtual systems Paid Members Public
Running ceph clusters with cephfs may allocate more disk space than you expect - especially on virtualized environments. This guide might provide a solution for that.
Using AzureCli with command completion on windows Paid Members Public
If you're working with azure you're propably also working with AzureCli. This article shows how to get usable command completion on your client.
docker daemon not starting after upgrade Paid Members Public
Having upgraded docker you may come into a situation where the docker daemon itself doesn't start anymore because of an issue with firewalld.
Docker - Hardening with firewalld Paid Members Public
Containers are no virtual machines - yet we might want to treat hosts running container workloads like hypervisors and apply limitations on container networking. This guide describes a way to limit container networking on docker based container hosts using firewalld.
Nextcloud - NativeReadStream excess data will be lost Paid Members Public
Running nextcloud with smb as external files runs into an issue starting with some of the latest releases - we saw the issue first on release 21.0.1. This guide describes how to implement a workaround until an official fix is available.
Ceph - OSD restore performance Paid Members Public
When ceph restores an OSD, performance may seem quite slow. This is due the default settings where ceph has quite conservative values depending on your application workload. Especially if you're running workloads with many small objects (files), the default values may seem too slow.
