On Sat, Jan 19, 2008 at 02:36:14AM -0700, randal k wrote:
Anybody know what is up/down with the GTE/Level3 name-servers used the world over on 4.2.2.1, 4.2.2.2? Suddenly started getting no responses from them for a couple of our side apps.
Testing from an l3 customer network which got responses and a non-l3 customer network which did not implies that they finally clamped down on non-customer use of their anycasted resolvers.
I hope these servers stick around forever, they're kind of an Internet legend.
Open resolvers are seriously abused by botnets and related baddies. Perhaps you might need to run a set of resolvers, or get your service provider[s] to give you something similar to well-tuned anycasted resolvers. Cheers, Joe -- RSUC / GweepNet / Spunk / FnB / Usenix / SAGE