On 22.07.2012 18:19, Mark Jeftovic wrote:
Am I right in thinking that Google public DNS simply does not cycle the
multiple records on a round-robin host. There have been a few threads on
this (i.e. google "round robin 8.8.8.8")
At first I thought this was just impacting a specific customer domain
but now it seems to be the same for any round-robin host I care to try
against it:
markjr@c3po:~$ dig +short rr.easypi.net @8.8.8.8
205.210.42.3
205.210.42.1
205.210.42.2
...
Relying on round-robin has other short-comings too. E.g. if more
developers use getaddrinfo() instead of gethostbyname() (which is
obsolete) then the results will always be ordered, e.g. see:
http://daniel.haxx.se/blog/2012/01/03/getaddrinfo-with-round-robin-dns-and-happy-eyeballs/
regards
Klaus
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