[BlueOnyx:11378] Re: 5108R IPv6 fun fact

[Gerald Waugh]

On 09/24/2012 03:38 PM, Gerald Waugh wrote:
> On 09/24/2012 07:59 AM, Chris Gebhardt - VIRTBIZ Internet wrote:
>> Here's a neat tip.  If you are running an IPv6-enabled network, your
>> 5108R server may decide to pick up an IPv6 IP address on its own via
>> auto-configuration.  Sendmail may then use the IPv6 address to connect
>> to other SMTP servers.  If you have not configured a PTR for that IPv6
>> address, then the mail sent via IPv6 hosts will tend to bounce as it has
>> no reverse DNS.
>>
>> We haven't seen this behavior on 5106R.
>>
>> Just thought I'd pass it along.  #LFMF
>>
> I have a server with dovecot problems
>
> dovecot: master: Error: service(imap-login): listen(::, 993) failed: 
> Address family not supported by protocol
>                             Sep 24 14:12:32 msi dovecot: master: 
> Fatal: Failed to start listeners
>
> googling indicates ipv6 issues
> tried some of the fixes  listen = *, :: to listen = * and protocols to 
> various options
more
the ::, is ipv6

Sep 24 14:30:08 msi dovecot: master: Error: service(pop3-login): 
listen(::, 110) failed: Address family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: socket() failed: Address 
family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: service(pop3-login): 
listen(::, 995) failed: Address family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: socket() failed: Address 
family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: service(imap-login): 
listen(::, 143) failed: Address family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: socket() failed: Address 
family not supported by protocol
Sep 24 14:30:08 msi dovecot: master: Error: service(imap-login): 
listen(::, 993) failed: Address family not supported by protocol


-- 
Gerald