ruanhead

1460 sounds like they subtracted TCP header from 1500 and called it the MTU. Classic layer confusion. I see this in Frankfurt colo sometimes, sales engineers who took one networking course.

Frankfurt. I add one: abuse contact changes in RIPE.

New abuse-c handle, new org handle, often weeks before public news. The RIR database updates fast because routing depends on it.

Whois -h whois.ripe.net <AS> and watch for org-name changes. Not perfect—some hosts use LIR services—but dedicated h...

Checkmk RAW is good. I migrated from Nagios in 2019, never looked back. The WATO config is web UI, no text files for standard changes.

But: the agent must be installed on each node. Not hard, but another step.

Leaseweb Frankfurt here. Zero impact. But I am watching my bill because their currency is EUR and my accountant hates them already. The May invoice arrived on time, funny enough. No fire discount.

Hosting without PTR is like the baguette without crust. Voilà, here is your problem.

I had same with Vultr — https://www.vultr.com. The IP resolve to generic hostname, not mail.example.com. Gmail hate this.

Fix: ask provider set PTR to match header from Hestia. Voilà.