On 10/29/2010 4:19 PM, Dylan Vanderhoof wrote:
> On 10/23/10 11:30 AM, "Dan Langille"<d...@langille.org>  wrote:
>
> On 10/22/2010 11:13 PM, Dylan Vanderhoof wrote:
>> This appears to be a bacula-fd bug, as best I can tell.  Perhaps somebody 
>> can shed some enlightenment as to how I might get around it?
>>
>> We have a bacula server running v4 and v6, with an A and AAAA record.  All 
>> functional clients are IPv4 and are working great.
>>
>> I'm trying to add a hosts that backs up via IPv6.  (It doesn't have IPv4 
>> reachability to the server)  The client still dual-stack however.
>>
>> I can use FDAddresses in the bacula-fd.conf on the client to prevent the 
>> client from listening on its IPv4 address.  However, when I actually try to 
>> run a backup, the client contacts the SD by name and ignores the AAAA record 
>> for the SD.  Even though the FD is not bound to an IPv4 address, it still 
>> attempts to use IPv4 to connect to the SD, since there is an A record 
>> present.  Since there's no IPv4 reachability, the operation times out and 
>> the backup hangs.
>>
>> Suggestions?
>>
>> Ideally, it seems is an FD is configured to only listen on an ipv6 address, 
>> it shouldn't attempt to connect to the SD on IPv4.  (More to the point, I'd 
>> think it would try to connect via whichever address family the server 
>> contacted it on to kick off the backup)
>
> Have you asked this question on the users mailing list?
>
> What version of Bacula are you using?

>> Sorry it took so long for me to get back on this.
>>
>> I'm on 5.0.3, ipv6 support is compiled in, and the client is correctly 
>> resolving (on an OS level) the AAAA and A record for the SD.

If your host has both A and AAAA records, then it's expected to be 
providing services on both addresses.  Actually, Bacula takes IPv6 in 
preference.

Solution: if you are providing IPv6 only services, create a new hostname 
with only an AAAA record.  Simple.  Easy.  No code required.

-- 
Dan Langille - http://langille.org/

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