nginx imap proxy - timeouts

[Dominic]

Hi Falko

On 23/10/14 12:26, Falko Koenig wrote:
> Thank you for your help. These options we have already tried. We had the
> same problem using a socket and increasing the option
> net.ipv4.ip_local_port_range didn't help. In the setup we're already
> using loadbalancer to balance the traffic on different hosts. Do you
> have maybe any other suggestions? 

Without further informations the guessing goes on.

What version of nginx are you using?
Can you provide your configurations? Especially the timeout settings of
auth_http_timeout?

Some suggestions, if you haven't tried them yet.
Are you measuring the response time of the HTTP auth request?
- Add timing informations to you Perl script.
Check the connection limits of your LDAP backends.

Regards
Dominic