Upoređivanje rada DNS servera

Kako uporediti nekioliko DNS servera, videti koji imaju problem, a koji nemaju?

1. Analiza broja upita, kao uspešnih, tako i neuspešnih
Za BIND 9.8 je moj post ovde.
Za BIND 9.2 je moj post ovde.

2. Uporedna analiza brzine odziva
Za ovako nešto je najzgodnije koristiti neke već gotove programe.
Pod WIN : DNS benchmark (ovde).
Evo kakav otprilike rezultat daje :
dns-benchmark1
Napomena :
•Cached lookups (Red bar): The response time for returning cached lookups from the DNS name server.
•Un-cached lookups (Green bar): The response time for returning a new lookup or one with an expired Time to Live.
•Dotcom lookups (Blue bar): The response time for returning a query from a “Dot Com” DNS name server.
•Reliability (Red bar by IP address): The number of lost or dropped queries during the test.
•Rebinding protection: Whether the DNS name server prevents resolution of external names into internal IP addresses.
Pod Linux-om :
Namebench (ovde)
Daje prosečno vreme odziva za servere, ali je ipak manje informativan od predhodnog. Zahteva Python da bi radio.
Jedna od korisnih stvari koju daje ovaj program je ovo :
NamedBenchmark-23Maj2014
Evo kako se pokreće (mora iz GUI okruženja) :
# namebench.py -w -s 3 -r 10 10.10.10.82 10.10.10.34

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