dual stack binding

Steve Wilson lists-nginx at swsystem.co.uk
Thu Jun 21 21:36:36 UTC 2018


I've no problem with IPv6 on my server using specific v4 and v6 listen 
statements.

Is the IP you're trying to use actually configured on an interface?

Steve.

On 21/06/2018 21:37, abatie wrote:
> I have nginx binding to a variety of addresses for ssl and target selection
> reasons.  Now I'm trying to add ipv6 support.  Since I'm using specific
> listen addresses, I wouldn't expect to have a binding conflict, however I
> am, and I'm hoping someone can point me in the right direction:
> 
>      server {
> 	listen 207.55.17.79:25;
> ...
>      server {
> 	listen [2607:f678::17:79]:25;
> ...
> 
> <mailproxy-lb-01.peak.org> [150] # service nginx restart
> Stopping nginx:                                            [FAILED]
> Starting nginx: nginx: [emerg] bind() to [2607:f678::17:79]:25 failed (99:
> Cannot assign requested address)
>                                                             [FAILED]
> 
> The local mail server is only listening on localhost:
> 
> tcp        0      0 ::1:25                      :::*
> LISTEN
> 
> Commenting out the smtp server config just moves the conflict to the next
> port in question...
> 
> nginx/1.7.6
> CentOS release 6.9 (Final)
> 
> Posted at Nginx Forum: https://forum.nginx.org/read.php?2,280234,280234#msg-280234
> 
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