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Rocketchat fails after upgrade with index error

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.

Daniel Nachtrub
Daniel Nachtrub
Container
Replace tls cert using commandline (netsh)

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.

Daniel Nachtrub
Daniel Nachtrub
Windows
Forever growing zabbix database

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.

Daniel Nachtrub
Daniel Nachtrub
Database
Fixing a corrupt vhdx file manually

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.

Daniel Nachtrub
Daniel Nachtrub
Windows
Patchday notes - VM stuck at boot (june 2022)

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.

Daniel Nachtrub
Daniel Nachtrub
Windows
XDP for Windows - and it's open source

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.

Daniel Nachtrub
Daniel Nachtrub
Windows
openvpn data channel offload

openvpn data channel offload

openvpn is working on offloading the data channel to kernel space. This is improving throughput by an order of magnitude according tests.

Daniel Nachtrub
Daniel Nachtrub
Network
terraform - use nullable in variables for default values

terraform - use nullable in variables for default values

Writing terraform makes it easy to split code into modules. To avoid setting default values on each layer of the stack, use nullable to provide a way to fallback to the module's own default value.

Daniel Nachtrub
Daniel Nachtrub
Azure