[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 397
  • Last Modified:

DNS update via DHCP is reversing octets in logging

Is it intended design for DNS doing an update (via DHCP) to reverse the
updates in its logging:

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=30 Date=03/25/10 Time=12:39:06
Description=DNS Update Request IP Address=41.21.27.172 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=30 Date=03/25/10 Time=12:39:06
Description=DNS Update Request IP Address=41.21.27.172 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=32 Date=03/25/10 Time=12:39:06
Description=DNS Update Successful IP Address=172.27.21.41 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=32 Date=03/25/10 Time=12:39:06
Description=DNS Update Successful IP Address=172.27.21.41 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

Notice the addresses are reversed. Would anyone see anything in these that
would say to them ‘this is a reverse PTR and we should reverse the order of
the IP octets!’ ? Or is it intended design?
0
Darkpaw
Asked:
Darkpaw
2 Solutions
 
Chris DentPowerShell DeveloperCommented:

> ‘this is a reverse PTR and we should reverse the order of the IP octets!’ ?

The addresses will be stored in DNS as:

41.21.27.172.in-addr.arpa

So it's possible that for the Request it logs it in reverse because it must send it that way with in-addr.arpa as a suffix.

Conjecture only...

Chris

0
 
leegclystvaleCommented:
It looks as though it's doing a reverse lookup ip to domain name and is by design.
 
0
 
DarkpawAuthor Commented:
Thanks.  It looked like it might be design intent, but just wanted to verify.
0

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now