A small addition to Ray's already comprehensive analysis... On Tue, 12 Nov 2002 10:53:38 PST Ray O. wrote:
> Now, the tcpdump traffic you report is -- > > 17:07:30.870333 pingu-serv.farside.net.vfo > > 193.37.83.1.domain: 58405+ > PTR? 81.83.37.193.in-addr.arpa. (43) (DF) > 17:07:30.870892 193.37.83.1 > pingu-serv.farside.net: icmp: > 193.37.83.1 udp > port domain unreachable [tos 0xc0] [..] > the router's reply is that the DNS port cannot be reached on the router. Bad. > > So ... why not? Two candidate reasons -- > > 1. The firewall blocks access to that port. [..] > 2, Nothing is listening on port 53 on the router. 3. You have dnscache listening on port 193.37.83.1:53 and traffic is allowed to it through the packet filter, but /etc/dnscache/env/IPQUERY does not include a line that allows queries from pingu-serv.farside.net's address or network. --Brad ------------------------------------------------------- This sf.net email is sponsored by: To learn the basics of securing your web site with SSL, click here to get a FREE TRIAL of a Thawte Server Certificate: http://www.gothawte.com/rd522.html ------------------------------------------------------------------------ leaf-user mailing list: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
