Listen on transient address
ashish.is at lostca.se
Fri Nov 16 08:00:38 UTC 2018
On 11/16/18 1:29 AM, Roger Fischer wrote:
> I have an NGINX instance that listens on a tunnel (and some other
> interfaces). When NGINX was restarted while the tunnel was down (tun
> device and address did not exist), NGINX failed to start.
> [emerg] 1344#1344: bind() to 188.8.131.52:443 failed (99: Cannot
> assign requested address)
> Relevant config:
> listen 172.16.200.5:80 default_server;
> listen 184.108.40.206:80 default_server; # tunnel, not always up
> Is there a way to configure NGINX to listen “best effort”, still start
> even if it can’t bind to the address/port, and periodically retry to
> bind to the address/port? This would be my preferred solution.
> Alternatively, if I pre-define the tunnel device and its address (I have
> not explored that yet), would NGINX bind successfully when the tunnel is
If using GNU/Linux, make sure /proc/sys/net/ipv4/ip_nonlocal_bind is set
to 1, and then you should be able to bind to any non-local IPv4 address.
Ashish SHUKLA | GPG: F682CDCC39DC0FEAE11620B6C746CFA9E74FA4B0
“Under certain circumstances, profanity provides a relief denied even to
prayer.” (Mark Twain)
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