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2008 Nov 07
1
DNS A queries for channel
Hi folks, I've been using * for quite a few years and everyday it surprises me more. I was recently analysing some captures with ethereal/wireshark and found out that * was doing DNS A queries for domain names like channel.mydomain.comwhere channel is the typical string of the dstchannel or channel field in the CDR entries. Obviously those queries returned with negative answer because it does not exists such domainname. My question is why is * asking the DNS for the A entry of the channel? It looks like it does the DNS query upon re...