IPv6 DNS lookups fail for resources with a large number of IPv4 A records
Bug #490607 reported by
Andrew Pollock
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| glibc (Debian) |
Fix Released
|
Unknown
|
|||
| glibc (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
Steps to reproduce:
1) find a domain with a lot of A records. brightski.com seems like a good candidate at the moment.
2) as for the A records, but with IPv6 DNS resolution included (RES_OPTIONS=inet6 getent hosts brightski.com)
Expected behaviour:
List of A records are returned, using 4in6 addressing
Actual behaviour:
Nothing is returned
This problem is present in Debian Lenny's libc6. It is not present in Ubuntu 8.04's.
| Changed in glibc (Debian): | |
| status: | Unknown → New |
| Changed in glibc (Debian): | |
| status: | New → Fix Released |
Revision history for this message
| Dave Gilbert (ubuntu-treblig) wrote | #1 |
| Changed in glibc (Ubuntu): | |
| status: | New → Fix Released |
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Given that the linked Debian bug say that they believe it was fixed on 2.10.2-4, and given that Ubuntu is now shipping 2.15-0 in Quantal, I'll assume that the debian fix is in there; and 2.11-1 is in lucid so I think it should be there even for that.
(Your original test is a bit tricky now as well; most places with lots of IPv4 addresses tend to have AAAA records instead).