On 10/5/21 5:51 AM, scott wrote:

On 10/5/21 8:39 PM, Michael Thomas wrote:

This bit posted by Randy might get lost in the other thread, but it appears that their DNS withdraws BGP routes for prefixes that they can't reach or are flaky it seems. Apparently that goes for the prefixes that the name servers are on too. This caused internal outages too as it seems they use their front facing DNS just like everybody else.

Sounds like they might consider having at least one split horizon server internally. Lots of fodder here.

even a POTS line connected to a modem connected to a serial port on a workstation in the data enter so that you can talk to whatever you need to talk to. I would go so far as to have other outgoing serial connections to routers from that workstation. It's ugly, but it provides remote out of band disaster management. Just sayin'

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Move fast; break things? :)

scott