Re: RE: More than 65K connections of a proxy on FreeBSD
> Correct me if I'm wrong but in case of IP_BIND_ADDRESS_NO_PORT doesn't the unique 4-tuple (sourceip+sourceport+destip+destport) limit still remain? Yes, it still remains. > As you only defer/delegate to kernel to assign the ephemeral port in connect() rather than at the bind() time (when the destination is not yet known) so in case of a single source ip and single backend/port the ~65k limit still exists. You are right for the case of single source IP and single backend-port pair. The thing is that in case of single source IP and multiple backend-port pairs overall amount of connections is still limited by 65K. Linux's IP_BIND_ADDRESS_NO_PORT increases the limit up to 65K connections per single backend-port pair (single source IP remains the same for all connections to all backends) and NGINX supports the feature. So I wonder if there's something like on FreeBSD. Posted at Nginx Forum: https://forum.nginx.org/read.php?2,279368,279396#msg-279396 ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
RE: More than 65K connections of a proxy on FreeBSD
> Unfortunately, the article says nothing about 65K+ connections _per_single_ > local address. > Using of IP_BIND_ADDRESS_NO_PORT for Linux was mentioned in the comment > and there's nothing about FreeBSD. Correct me if I'm wrong but in case of IP_BIND_ADDRESS_NO_PORT doesn't the unique 4-tuple (sourceip+sourceport+destip+destport) limit still remain? As you only defer/delegate to kernel to assign the ephemeral port in connect() rather than at the bind() time (when the destination is not yet known) so in case of a single source ip and single backend/port the ~65k limit still exists. rr ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
Re: More than 65K connections of a proxy on FreeBSD
Unfortunately, the article says nothing about 65K+ connections _per_single_ local address. Using of IP_BIND_ADDRESS_NO_PORT for Linux was mentioned in the comment and there's nothing about FreeBSD. Posted at Nginx Forum: https://forum.nginx.org/read.php?2,279368,279394#msg-279394 ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
Re: More than 65K connections of a proxy on FreeBSD
This may well help: https://www.nginx.com/blog/overcoming-ephemeral-port-exhaustion-nginx-plus/ On 10/04/2018 13:54, Salikhov Dinislam wrote: Hello, On Linux, NINGX can have more than 65K connections to backends per one local address of a proxy (set via proxy_bind), as Linux support IP_BIND_ADDRESS_NO_PORT socket option. I wonder if it is possible to have more than 65K proxy connections on FreeBSD? And if yes, does NGINX support it? Thanks in advance. Posted at Nginx Forum: https://forum.nginx.org/read.php?2,279368,279368#msg-279368 ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx ___ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
