Re: [sr-dev] Dispatcher reverse lookup by IP

On 11 Dec 2014, at 16:01, Olle E. Johansson oej@edvina.net wrote:

Hi!

Digging through the dispatcher source code I think this is the way IP matching works:

• When loading or reloading dispatcher, hostnames are looked up to IP

• When running a reverse check in dispatcher the IP address is checked against $si

I don't understand if we handle DNS TTL and re-lookup the name here. Do I have to run a crontab dispatcher reload to make sure we have an up-to-date IP?

Additional discovery: - we run a new DNS lookup before doing the reverse matching, which is fine.

Note: If the dispatcher SIP URI does not resolve at load time, that entry is ignored, but dispatcher loads the rest of the table.

Digging... /O