[dns-operations] IronDNS problem affecting several Spanish TLDs

Borja Marcos borjam at sarenet.es
Wed Apr 13 09:47:59 UTC 2022

Good morning,

For an hour we have seen that IronDNS (who happen to be the DNS server providers for the .eus, .gal and .madrid Spanish TLDs)
have blacklisted the IP addresses of our recursive DNS servers.

Has anyone else suffered this? Looks like some rate limiting (or whatever) has flagged us as “hostile”. Meanwhile public recursive
servers such as Google, CloudFlare and Quad9 were working.

Just trying to cross-check. 


Borja Marcos.
Sarenet - ASN3262

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