F.ROOT-SERVERS.NET moved to Beijing?

Danny McPherson danny at tcb.net
Mon Oct 3 17:39:17 UTC 2011

On Oct 3, 2011, at 1:09 PM, Christopher Morrow wrote:

> Given that in the ISC case the hostname.bind query can tell you at
> least the region + instance#, it seems plausible that some system of
> systems could track current/changes in the mappings, no? and either
> auto-action some 'fix' (SHUT DOWN THE IAD INSTANCE IT's ROGUE!) or at
> least log and notify a hi-priority operations fixer.

That sort of capability at the application layer certainly seems 
prudent to me, noting that it does assume you have a measurement 
node within the catchment in question and are measuring at a high 
enough frequency to detect objective incidents.

> Given something like the unique-as work Verisign has been behind you'd
> think monitoring route origins and logging 'interesting' changes could
> accomplish this as well?

I'm a fan of both routing system && consumer-esque monitoring, and 
do believe that a discriminator in the routing system associated with 
globally anycasted prefixes makes this simpler - for both detection, 
and possibly even reactive or preventative controls IF necessary.  A 
unique origin AS is not the only place you can do this in the routing 
system, as I'm sure some will observe, but it seems an ideal location
to me.


More information about the NANOG mailing list