> >>> I trying to setup multi-isp configuration (using latest bering-uClibc > >>> 3.1-beta1), and began reading the corresponding doc: > >>> http://www.shorewall.net/3.0/MultiISP.html > >>> I am not clear on how the DNS resolution happens if a DNS request > >>> from one provider goes to the other provider's name server. ISPs > >>> these days serve their customers alone and reject all requests > >>> outside their network. > >>> > >>> 1. As part of multi-isp setup, is it possible to have the DNS requests > >>> routed thru' a provider go to provider's DNS IPs? > >>> > >>> 2. Does listing all ISP's DNS IPs into /etc/resolve.conf help? > >>> > >>> Appreciate any pointers or links. > >> DNS is not a special case -- it obeys the same rules as any other > >> connection. > >> > >> -Tom > > > > Thanks for a prompt response Tom. > > > > DNS not being special case does make sense. Do you have any suggestions > > on how to deal with the DNS look up failures when the requests are sent > > to wrong provider. > > What does "request are sent to wrong provider" mean? > > -Tom
Let me give you an example: isp1: DNS 1.2.3.4, 2.3.4.5 isp2: DNS 3.4.5.6, 4.5.6.7 Assume that we list all the above in /etc/resolv.conf file. When you start the very first time, if using multi-isp, the request for DNS resolution could go to either of the two ISPs. Assume that the request goes to isp2 but the DNS server picked for resolution is 1.2.3.4. This scenario is what I am referring to as 'wrong provider' (DNS resolution point of view). Thanks ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ------------------------------------------------------------------------ leaf-user mailing list: leaf-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-user Support Request -- http://leaf-project.org/
