[Resend, this mail did not make it to the list (wrong From:)] Am Montag, den 02.02.2015, 16:57 +0100 schrieb Niels:
> I do see the usefulness of such an option but only if implemented such > that real reverse lookups can still function unchanged. One way would > be to implement a separate dns service listening on some other port. > > That is probably way too complicated to be acceptable as a general patch. The main point is that I do not see any way to have it work with an unmodified client. The client needs to implement some way of saying it wants to do fake reverses. > I have been pondering the idea to make a log parser process that builds > a database from forward lookups that can then be queried on the resulting > ip. For CNAME expansion that would be problematic since the individual log > entries currently do not provide enough information, like in: > > Feb 2 16:36:55 dnsmasq[852]: query[A] p05-btmmdns.icloud.com from 192.168.178.12 > Feb 2 16:36:55 dnsmasq[852]: cached p05-btmmdns.icloud.com is <CNAME> > Feb 2 16:36:55 dnsmasq[852]: cached p05-btmmdns.icloud.com.akadns.net is 17.172.100.68 > > The logs do not make clear that p05-btmmdns.icloud.com.akadns.net is the > value of CNAME p05-btmmdns.icloud.com and I found the extra dns query needed > to prove that would be too much of a hassle. > > So one proposition would be to make the log entries for <CNAME> list the > actual value, which is a very small change, and leave the 0.01% dnsmasq users > that are interested in reporting which forward request resulted in an actual > ip being encountered alone with the task of writing their own report tools. It might be easier to use it if the log entry would provide an IP, e.g. Feb 2 16:36:55 dnsmasq[852]: cached p05-btmmdns.icloud.com is <CNAME> for 17.172.100.68 Not sure, if this is implemented easily. But you are right, a log file parser is preferable. Building a tool that replaces all IPs by the last used names and piping the netstat-nat -n output would do it for my case. So I request log files that enable looking up the last requested name as a feature. Shall I implement this or could you be so kind? Sincerely, Joachim _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
