Linux

pfsense - access ipmi using ipmitool Members Public

Recent versions of pfsense ship with ipmitool. To use it you need to load the kernel module - this guide shows how to do this.

Daniel Nachtrub
Daniel Nachtrub
Linux

ceph reports "n hosts fail cephadm check" Members Public

One of our ceph clusters entered HEALTH_WARN state with reason "1 hosts fail cephadm check". This guide shows a quick tip how to find out more about this issue.

Daniel Nachtrub
Daniel Nachtrub
Linux

sudo root shell with autocomplete Members Public

Switching user using sudo results in a limited shell without command completion. Using the right sudo command omits this limit and provides a fully fledged shell.

Daniel Nachtrub
Daniel Nachtrub
Linux

Change BIOSGUID in Hyper-V machines 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.

Daniel Nachtrub
Daniel Nachtrub
Linux

Migrating zabbix from mysql to timescaledb - introduction 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.

Daniel Nachtrub
Daniel Nachtrub
Monitoring

Reducing ceph filesystem overhead on virtual systems 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.

Daniel Nachtrub
Daniel Nachtrub
Linux

Using AzureCli with command completion on windows 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.

Daniel Nachtrub
Daniel Nachtrub
Azure

docker daemon not starting after upgrade 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.

Daniel Nachtrub
Daniel Nachtrub
Container