Hello, Our DNS could not resolve the following domains passport.com microsoft.com msn.com msnbc.com It is resolving all other requets normally. Both Primary and Secondary DNS could not resolve these domains. I also install DNS on another machine on same network but same situation with that also. I remove the firewall from the router and after removing that firewall check the problem but the problem persists. Operating System is Linux Red Hat And DNS Version is Bind-8.2.2_P5 All things were running fine about three days ago. We do not change any configurations at our machine. >From my network I can ping the DNS servers for the above domains some them are DNS6.CP.MSFT.NET DNS7.CP.MSFT.NET DNS4.CP.MSFT.NET DNS5.CP.MSFT.NET We have another link with Internet. When I route my DNS machine to Internet through that link then the DNS can resolve above domains. But when I route it through my current link with Internet then it could not resolve the above domains although it was working properly with this link three days ago. I have contacted msn.com people. They say that they do not block 53/udp for any one.And nslookup indicates that your dns servers can get the correct NS records for these domains but do not appear to be able to get the SOA information. We are in trouble due this problem because our clients can not access hotmail.com, because hotmail.com redirects to lc*.law*.hotmail.passport.com and our DNS is unable to resolve passport.com. > server DNS4.CP.MSFT.NET Default Server: DNS4.CP.MSFT.NET Address: 207.46.138.11 >www.passport.com Server: DNS4.CP.MSFT.NET Address: 207.46.138.11 *** DNS4.CP.MSFT.NET can't find www.passport.com: No response from server Although I can ping DNS4.CP.MSFT.NET but when I set my server DNS4.CP.MSFT.NET and query for "www.passport.com" it gives no response. Waiting for help and thanks in advance. Regards, Arshad Mahmood. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org
