Search Again: Re: Semi-ot, local DNS lookups From: Scott Haneda Date: Wednesday, September 22, 2004 Time: 6:10:58 pm on 9/22/04 5:22 PM, Men & Mice Support at cbuxton@menandmice.com wrote: >> Is it valid to have two A records to the same domain? >> host secure.authorize.net >> secure.authorize.net has address 64.94.118.32 >> secure.authorize.net has address 64.94.118.33 > > It absolutely is. And you can't be sure which one the curl command > will end up using, though if there's little enough traffic (i.e. the > script isn't running more than once at a time), it's likely to be the > second one. Ok, the plot thickens yet again: Still getting failures in my scripts connecting to "secure.authorize.net", I managed to figure out enough about how to use tcmdump to capture what is happening, here is my suspician: host secure.authorize.net secure.authorize.net has address 64.94.118.33 secure.authorize.net has address 64.94.118.32 Those 2 Ip addresses work just fine, but for some reason, at random it seems, I am getting back a similar yet old and dead IP address. From my tcpdump log WORKING: 17:54:56.765774 IP hook.hostwizard.com.63092 > 64.94.118.32.https: S 1777568727:1777568727(0) win 65535 <mss 1460,nop,wscale 0,nop,nop,timestamp 3366760773 0> NOT WORKING: 17:56:13.122516 IP hook.hostwizard.com.63107 > 64.94.118.60.https: S 3097365772:3097365772(0) win 65535 <mss 1460,nop,wscale 0,nop,nop,timestamp 3366760925 0> So as you can see, in a short span of time, 2 seconds, all of a sudden, the IP went from .32 to .60, when it got the .60 it failed. I was doing a tail -f on the qdns log at the time this happened, I had querry logging on, I never saw a DNS lookup come in for secure.authorize.net, I also ran lookupd -flushcache, which seemed to do no good, no new lookup was asked of my DNS server. I rebooted the machine, and it seems to get the correct IP now, but I did that a few days ago, and it seems over time it gets the wrong one. So, where in the world is this bunk DNS IP address coming from, and how can I fix this? -- ------------------------------------------------------------- Scott Haneda Tel: 415.898.2602 <http://www.newgeo.com> Fax: 313.557.5052 <scott@newgeo.com> Novato, CA U.S.A.

Messages In This Thread: Semi-ot, local DNS lookups by Scott Haneda on Sep 20, 2004 at 7:59:48 pm Re: Semi-ot, local DNS lookups by Men & Mice Support on Sep 21, 2004 at 2:37:46 pm Re: Semi-ot, local DNS lookups by Steve Fabian on Sep 21, 2004 at 2:45:06 pm Re: Semi-ot, local DNS lookups by Scott Haneda on Sep 22, 2004 at 5:08:50 pm Re: Semi-ot, local DNS lookups by Men & Mice Support on Sep 22, 2004 at 5:24:38 pm Re: Semi-ot, local DNS lookups by Scott Haneda on Sep 22, 2004 at 6:10:58 pm Re: Semi-ot, local DNS lookups by Scott Haneda on Sep 22, 2004 at 6:21:33 pm Re: Semi-ot, local DNS lookups by Men & Mice Support on Sep 22, 2004 at 6:36:28 pm Re: Semi-ot, local DNS lookups by Cayce Will on Sep 23, 2004 at 11:43:47 am Re: Semi-ot, local DNS lookups by Scott Haneda on Sep 23, 2004 at 1:09:54 pm Re: Semi-ot, local DNS lookups by Ken Eddings on Sep 23, 2004 at 2:13:16 pm