Hi! There is problem in pjproject handling SERVFAIL responses from the nameserver. Obviously, if a nameserver responds several times with SERVFAIL, the NS get marked as bad. This is wrong, as the nameserver might be good - it it is just an upstream error. e.g. take a look at the attached 2 traces. I started pjsua to register a at a SIP proxy. In one case, the used STUN server has a broken domain configuration, thus the resolver responds with SERVFAIL. This marks the nameserver as broken and the following DNS lookup for the SIP domain is not even tried, as the nameserver is tagged as broken! Conclusion: A nameserver must not be tagged as "nonworking" just because of received SERVFAIL - as this might be caused by an upstream problem. regards Klaus -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: bad.txt URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090828/15c2fa89/attachment.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: good.txt URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090828/15c2fa89/attachment-0001.txt>
