nanog mailing list archives
Re: Cloudflare reverse DNS SERVFAIL, normal?
From: Niels Bakker <niels=nanog () bakker net>
Date: Wed, 31 Aug 2016 16:18:27 +0200
* owen () delong com (Owen DeLong) [Wed 31 Aug 2016, 01:47 CEST]:
You don’t get NXDOMAIN when a nameserver gets a request for a zone it doesn’t serve.
Correct in most cases (there's an edge case where a server is [mis] configured as authoritative with its own empty . and its regular zones and allows global querying; it's similar to asking a root server for anything in a nonexistent TLD).
You either get SERVFAIL or you get NS records back as a referral.
Or REFUSED. -- Niels.
Current thread:
- Re: Cloudflare reverse DNS SERVFAIL, normal?, (continued)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Mark Andrews (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Chris Adams (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? David (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Mark Andrews (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Owen DeLong (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Mark Andrews (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Owen DeLong (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Mark Andrews (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Chris Adams (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Valdis . Kletnieks (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Owen DeLong (Aug 30)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Niels Bakker (Aug 31)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Mark Andrews (Aug 29)
- Re: Cloudflare reverse DNS SERVFAIL, normal? Nigel Jones (Aug 31)