Summary:	ASTERISK-14153: DNS host name resolution in iax.conf
Reporter:	vieri (vieri)	Labels:
Date Opened:	2009-05-17 14:00:54	Date Closed:	2011-06-07 14:07:21
Priority:	Minor	Regression?	No
Status:	Closed/Complete	Components:	Channels/chan_iax2
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	I defined host=voipb1.mydomain.local in a iax.conf trunk and it was working fine until the DNS A record of that host changed IP address. Asterisk still tried to send calls to the old IP address. I restarted Asterisk and the calls were finally sent to the correct IP address so I'm guessing that the "host=" name resolution is done only at startup.   iax.conf: [coin] deny=all allow=alaw allow=gsm type=friend host=voipb1.mydomain.local secret=xxx auth=plaintext qualify=yes context=coin-context ****** ADDITIONAL INFORMATION ****** Expected behavior: The IP address in "host=" should not be resolved only once at Asterisk startup but whenever required, according to DNS TTL.
Comments:	By: Matt Riddell (zx81) 2009-05-17 16:20:14 Are you using the dns manager? By: vieri (vieri) 2009-05-18 04:33:17 I'm using: # cat dnsmgr.conf [general] enable=yes refreshinterval=60 *CLI> dnsmgr status DNS Manager: enabled Refresh Interval: 60 seconds Number of entries: 2 Does the DNS manager work with the /etc/hosts file? I tried changing the IP address within /etc/hosts and waited more than 60 seconds (failed). I'm using djbdns in my network so I tested it with a record A with TTL=5min. I changed the IP address in tinydns and waited 6 minutes. A ping to the host name resolved the new address fine. However, Asterisk will still send the call to the old IP address, unless I restart the * process. How can I "debug" dnsmgr in Asterisk? Could I actually "see" the 2 entries that "dnsmgr status" reports, thus confirming that it is not updating correctly? By: Joshua C. Colp (jcolp) 2009-05-18 09:23:34 I've just tested this using /etc/hosts and it worked as expected. Do you see: == Refreshing DNS lookups. At the specified refresh interval? By: vieri (vieri) 2009-05-18 13:30:45 When I reported this bug I didn't see the "Refreshing DNS lookups" messages, even after a "dnsmgr reload" or killing the asterisk process. I stopped Asterisk once again, checked that it was really dead, restarted it and now I see the "Refreshing DNS lookups" messages. Everything is working as expected now. I really don't know what went wrong in my previous tests. Anyway, thanks for your time and sorry for the noise. By: Joshua C. Colp (jcolp) 2009-05-18 13:33:13 Closed per reporter, after a restart the dns manager is now working as expected.