DNS
 
Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
User Name:
Password:
Remember me
Go Back   Dev Shed ForumsSystem AdministrationDNS
Receive the tools necessary to be the rock star of your field. Our 12-month program teaches you the evolving world of multi-channel marketing as well as the complex issues and opportunities found in the industry.

ASP Free and Iron Speed Designer are giving away $5,500+ in FREE licenses. Iron Speed's RAD CASE toolset can save up to 80% of your coding time. One free license per week, one perpetual license per month!
Download and Activate to enter!

Web development can be a daunting task, even for specialists. There is a lot of information to absorb and a lot of technologies to learn in order to manage a superior website. When trying to learn the ropes, developers need a reliable source to introduce new ideas that can be easily implemented. When working on large projects, even web veterans may run into a technology or an aspect of a technology that they are unfamiliar with.

Learn More!


Download to Enter
| Contest Rules

Tutorials | Forums

Reply
Add This Thread To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
Thread Tools Search this Thread Rate Thread Display Modes
 
Unread Dev Shed Forums Sponsor:
  #1  
Old January 11th, 2012, 08:59 AM
jjj0923 jjj0923 is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
 
Join Date: Apr 2007
Posts: 12 jjj0923 User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: 1 h 35 m 9 sec
Reputation Power: 0
Can someone explain these entries to me?

ok - so I was doing a little test on my backup dns server this morning, making sure it got activity when I pulled the plug on the primary dns server. Mind you - it's really not a backup since both of my dns servers are primary servers (the 2nd dns server is not configured a s a secondary to the other).

In any event I turned on debug logging to make sure queries were being made against it and I'm seeing a lot of strange entries and not sure how to interpret the data.

It's a Microsoft DNS Server and it's authoritative for our 50 or so domain names.

so - for instance the last line here looks lik it's from www.quickcopy.com.br looking for a resolution for myserver.com?

by the way: 64.36.241.206 is this particular server and 64.36.241.204 is one of my caching only dns server which we use (we have a few)

is that correct?

just askin...

20120111 09:42:10 A24 PACKET 0238A220 UDP Snd 98.115.187.6 0000 R Q [8085 A DR NOERROR] A (12)myserver(3)com(0)
20120111 09:42:17 A24 PACKET 00EF8A20 UDP Rcv 64.36.241.204 7364 Q [0000 NOERROR] A (3)www(10)rickdotson(3)com(12)myserver(3)com(0)
20120111 09:42:17 A24 PACKET 00EF8A20 UDP Snd 64.36.241.204 7364 R Q [8384 A R NXDOMAIN] A (3)www(10)rickdotson(3)com(12)myserver(3)com(0)
20120111 09:42:23 A24 PACKET 023801C0 UDP Rcv 64.36.241.206 d33f Q [0001 D NOERROR] PTR (1)3(6)187(3)114(2)98(7)in-addr(4)arpa(0)
20120111 09:42:23 A24 PACKET 023801C0 UDP Snd 64.36.241.206 d33f R Q [8085 A DR NOERROR] PTR (1)6(3)187(3)115(2)98(7)in-addr(4)arpa(0)
20120111 09:43:58 A24 PACKET 0238A220 UDP Rcv 64.36.241.204 e599 Q [0000 NOERROR] A (3)www(20)freelimewiredownload(3)net(12)myserver(3)com(0)
20120111 09:43:58 A24 PACKET 0238A220 UDP Snd 64.36.241.204 e599 R Q [8384 A R NXDOMAIN] A (3)www(20)freelimewiredownload(3)net(12)myserver(3)com(0)
20120111 09:44:27 A24 PACKET 00EF8A20 UDP Rcv 64.36.241.204 c10f Q [0000 NOERROR] A (3)www(8)guiaunai(3)com(2)br(12)myserver(3)com(0)
20120111 09:44:27 A24 PACKET 00EF8A20 UDP Snd 64.36.241.204 c10f R Q [8384 A R NXDOMAIN] A (3)www(8)guiaunai(3)com(2)br(12)myserver(3)com(0)
20120111 09:46:22 A24 PACKET 023801C0 UDP Rcv 64.36.241.204 6019 Q [0000 NOERROR] A (3)www(9)quickcopy(3)com(2)au(12)myserver(3)com(0)
20120111 09:46:22 A24 PACKET 023801C0 UDP Snd 64.36.241.204 6019 R Q [8384 A R NXDOMAIN] A (3)www(9)quickcopy(3)com(2)au(12)myserver(3)com(0)

Reply With Quote
  #2  
Old January 11th, 2012, 10:53 AM
CaptPikel CaptPikel is offline
Contributing User
Dev Shed Newbie (0 - 499 posts)
 
Join Date: Nov 2010
Location: Florida
Posts: 240 CaptPikel User rank is Lance Corporal (50 - 100 Reputation Level)CaptPikel User rank is Lance Corporal (50 - 100 Reputation Level)CaptPikel User rank is Lance Corporal (50 - 100 Reputation Level) 
Time spent in forums: 3 Days 13 h 6 m 12 sec
Reputation Power: 2
Quote:
Originally Posted by jjj0923
64.36.241.204 6019 Q [0000 NOERROR] A (3)www(9)quickcopy(3)com(2)au(12)myserver(3)com(0)
20120111 09:46:22 A24 PACKET 023801C0 UDP Snd 64.36.241.204 6019 R Q [8384 A R NXDOMAIN] A (3)www(9)quickcopy(3)com(2)au(12)myserver(3)com(0)


The above is an example of a query and a response. The one with the "Q" is the query and "Q R" is the query response. The "Rcv" is a received packet and "Snd" is the packet sent out. The query was for www.quickcopy.com.au.myserver.com. That host apparently doesn't exist so the response was an NXDOMAIN response. I'm not too familiar with Windows DNS honestly since I've only really used BIND. This might be a configuration problem such as a missing period in a zone or just clients sending out queries appending them with "myserver.com" as a search operation (probably handed out by DHCP).

Reply With Quote
Reply

Viewing: Dev Shed ForumsSystem AdministrationDNS > Can someone explain these entries to me?


Thread Tools  Search this Thread 
Search this Thread:

Advanced Search
Display Modes  Rate This Thread 
Rate This Thread:


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox
Forum Jump

Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
  
 


Powered by: vBulletin Version 3.0.5
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.

© 2003-2012 by Developer Shed. All rights reserved. DS Cluster 8 - Follow our Sitemap