All systems are operational

About This Site

This is the technical status page of combahton GmbH which represents past incidents and planned maintenances.

Past Incidents

Monday 30th March 2020

No incidents reported

Sunday 29th March 2020

No incidents reported

Saturday 28th March 2020

[Cancelled] Emergency Maintenance - core1.ffm3.combahton.net - 28.03.2020 [17:15 - 17:30 UTC], scheduled 1 day ago

Due to a problem with the cpu load, we have to restart core1.ffm3.combahton.net as we expect a stuck process.

Update 17:15: The restart has been cancelled, we were able to resolve the issue in another way. There was a strange issue with the BGP daemon, which was resolved by implementing a limit towards a downstream session.

Friday 27th March 2020

Core Network DDoS Attack towards unprotected transfer subnet

We had a ddos attack against a unprotected transfer ip-address which is only used for outgoing routing - this has caused approximately 5 minutes of short packetloss waves as well as increased latency. It seems the attacker has proactively researched the prefix of our upstream provider to point the ddos attack towards the ip-address of our route reflector, which is only used for fulltable routing. As the ip-address is not owned by us, no ddos-filters, flowspec rules or blackhole routes could be activated. We have shut down the ip-address + bgp session for now and will discuss further measurements, for example switching to a ip-address under our control.

Update 23:25: We have contacted the NOC of the responsible provider and will switch to a subnet under our control. There is no impact to our customers for now.

Thursday 26th March 2020

No incidents reported

Wednesday 25th March 2020

No incidents reported

Tuesday 24th March 2020

No incidents reported