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Thread Index [isp-dns] Re: Certain Sites Won't Resolve
This was a very interesting problem that came with simple resolution... To someone that is not quite a advanced user like myself it appeared to be a DNS issue through and through. I had removed the second instance of named to no avail...named stopped/started just fine. What it did turn out to be was and let me explain we have primary and secondary upstream provider....come to find out that one of our upstreams (We are doing BGP) was having an issue with his upstreams accepting routes from us....The frustrating part was that I had contacted the provider before I had made this post....so all is well today except for the D.O.S issue. So, I do apologize...for the false alarm for the DNS list, but figured it be of interest to someone in the future. Thank you for all the responses, Bill >Hi Bill: > >Interesting problem which I haven't met myself before. I'm intrigued >by these two processes and maybe we can start there. When you do a ps - ef | grep named (you're running on Solaris I see) do you get >a path for >the files named and named.orig? Is it the same path? > >Next, how are these two processes started? Presumably by scripts >in /etc/init.d, with symlinks in /etc/rc2.d. Have you inserted a >script to start named? If so, which one? There is usually a startup >of named in the script /etc/init.d/inetsvc. Can this be the >explanation of your two processes? Let's see if we can find out where >the two are being started and remove one of them. If you can't easily >find two try running cat * | grep -n named * in the /etc/init.d >directory and seeing whether named figures in two scripts. > >When we've reduced the instances to one known one, we can see whether >you are still having problems with resolution and begin to tackle that. > >mvh/regards > >James > -----Original Message----- > From: ITU Administrator [mailto:itunetadmin@...> Sent: Tuesday, October 15, 2002 04:42 > To: isp-dns@isp-dns.com > Subject: [isp-dns] Certain Sites Won't Resolve > > We are currently running two Sun/Cobalt Raq4's for mail, web and DNS > (one primary, one secondary) Plus two additional offsite servers for > redundancy and backup. > My issue is as follows: > DNS is running, just not resolving all sites. I have used a variation > of utilities for troubleshooting like nslookup, dig, ping, > tracert to no > avail. Consistently get > "DNS request time out", "Unable to resolve target system name", > "Connection Timeout", or "Unknown host". > Of particular interest I had noticed on both of these servers > I have two > instances or variances of named running; "named" and "named.orig". On > one server I can kill > one of the processes and everything is fine on my pri server > I can kill > either process first but when I kill the second running > process it gives > me "Shutting down DNS > Server: ERROR!" if I just kill the single process and check the status > of both it is telling me that they are both running. I do > apologize if > it appears that I have left some > holes in this post and I appreciate any assistance. > Bill <- Previous Message | Next Message -> Thread Index |
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