ssh -t is okay, but have you ever tried using properly configured sudoers files?

Using ICMP to monitor if a system is working is not a good idea as CPU Soft Lockups do exist.

Yes, I am so old that I am still providing a Teamspeak 3 instance for friends & family rather than Discord. :-)

Due to a new service check I encountered an error in the Icinga 2 zone config file sync and learned a little bit.

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