pfsense - CRL has expired in openvpn server
A few days ago we ran into an issue where pfsense appliances started to refuse openvpn connections by showing "CRL has expired" error messages. As it shows the reason is an overflow a date.
Service accounts in kubernetes 1.24
Kubernetes 1.24 changed the way serviceaccounttokens are presented by default on the cluster itself. If you need to retrieve the token, you mostly use a secret for this. This guide shows how to do this in kubernetes >= 1.24.
Rocketchat fails after upgrade with index error
Upgrading rocketchat to version 5.0 resulted in some minor issues that prevented the system from starting - both are related to the database and can easily be fixed.
Replace tls cert using commandline (netsh)
TLS endpoints on windows are often served by the operating system itself. Related certificate bindings can be managed using the command line easily. This guide shows how to replace a certificate using the commandline.
Forever growing zabbix database
Starting with zabbix 6.0 some new featuers have been added - for example audit logging. This post shows downsides / limitations of audit logging on this release and how to avoid negative impact of this.
Fixing a corrupt vhdx file manually
Recently, I've had a corrupted VHDX file that has not been able to mount or repair using regular tools ("The file or directory is corrupted and unreadable"). This guide describes the steps that fixed it.
Patchday notes - VM stuck at boot (june 2022)
On june's patchday it might happen that windows based VMs do not start correctly. Be sure to plan your patchdays ahead and be ready to fix any issues right away.
XDP for Windows - and it's open source
XDP (eXpress Data Path) is a high performance, programmable network data path and Microsoft is working on an implementation for Windows.
