Re: Another Question about SERVFAIL

2010-05-26 Thread Warren Kumari
On May 25, 2010, at 6:42 PM, Mark Andrews wrote: In message <20100525202455.06f0b40...@britaine.cis.anl.gov>, b19...@anl.gov wri tes: One of our networking personnel is trying to access ftp.cisco.com and is unable to do so from Argonne. He has no problem from home, (Comcast). The C

Re: Another Question about SERVFAIL

2010-05-25 Thread Josh Kuo
I tried these myself, and I am still scratching my head on the results. First, I tried to look for just ftp.cisco.com's A record, and I got back the answer 198.133.219.241. $ dig @4.2.2.2 ftp.cisco.com. a ; <<>> DiG 9.4.3-P3 <<>> @4.2.2.2 ftp.cisco.com. a ; (1 server found) ;; global options: pr

Re: Another Question about SERVFAIL

2010-05-25 Thread Mark Andrews
In message <20100525202455.06f0b40...@britaine.cis.anl.gov>, b19...@anl.gov wri tes: > One of our networking personnel is trying to access > > ftp.cisco.com > > and is unable to do so from Argonne. He has no problem from home, > (Comcast). The Comcast DNS servers are > > 68.87.72.13

Re: Another Question about SERVFAIL

2010-05-25 Thread Kevin Darcy
Cool, it looks like Cisco's Distributed Directors for ftp.cisco.com are misconfigured as open recursors: % dig www.sun.com @sjce-ddir-ns.cisco.com ; <<>> DiG 9.3.0 <<>> www.sun.com @sjce-ddir-ns.cisco.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR

Another Question about SERVFAIL

2010-05-25 Thread b19141
One of our networking personnel is trying to access ftp.cisco.com and is unable to do so from Argonne. He has no problem from home, (Comcast). The Comcast DNS servers are 68.87.72.134 68.87.77.134 and report that they are running "Nominum Vantio 4.2.1.0" (about which I know ver