[Pool] IPv6 testing, please add your servers to the beta site
"Martin v. Löwis"
martin at v.loewis.de
Sat Jun 4 12:19:52 UTC 2011
>> - When I add a hostname, it only uses the IPv4 Adresse.
> Patches welcome: https://github.com/abh/ntppool/issues/17
What behavior would you expect, anyway? It needs to chose whether
it takes the IPv4 address or the IPv6 address. So under what conditions
should it chose the IPv6 address when a name is entered?
It's a design choice of the NTP pool that a server in the pool
can't have both an IPv4 and an IPv6 address, so you have to add
> I don't know of any IPv6 -> geo databases. Maxmind's (which we use
> for IPv4) has IPv6 support I believe; but not enough data to be
The database is actually complete and current (today's database
is up-to-date until at least 2011-05-27). The country database
is easy to keep up to date, since it can directly be generated from
RIR data. Since addresses that are allocated typically aren't used
right away, the Maxmind database should typically be ahead of actual
It seems you need Geo::IP 1.39 to use the IPv6 database (haven't
tried myself, though).
> Until the DNS servers can do a similar lookup, there's not too much
> point to the servers having this data anyway.
It wouldn't be useful for the DNS lookups, but it would be useful for
registration. They are unrelated: even if we found the region during
registration, and even if the pool client is going to use IPv6 for
NTP, the DNS lookup will most certainly remain IPv4 for a foreseeable
future (as the DNS is the last infrastructure that will migrate to
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