>> Do you have any recommendations for recursive DNS servers for a medium >> sized (20-30k users) ISP. >> We have used powerdns and unbound but sometimes find the caching times >> a bit on upper side. Any suggestions between these two or anything >> new? > I've been happy with PowerDNS Recursor. What sort of latency were you > seeing in it and at what loading?
I wonder if we're trying to answer the wrong question. "sometimes find the caching times a bit on upper side" could certainly be interpreted to refer to caching according to the TTL specified for the zone on the *authoritative* server. If so - it's possible that the user simply needs to be able to specify a maximum TTL, independent of the setting on the authoritative server. Steinar Haug, AS2116 _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/W4PHMMJWD72WQTHFPTCNTCQPTYYAX4NS/
