IP addresses replaced with DNS names in IIS LOG files

From: Phil (hostsafe_at_hotmail.dot.com)
Date: 03/12/04 

Date: Thu, 11 Mar 2004 22:51:34 -0500

Recently after applying one of Microsoft's latest patch-of-the-month-club
hotfixes, and after rebooting my IIS 5 SP4 server, I noticed something odd
happening to my IIS log files.

Prior to February 21, 2004, all of my log files showed the client and server
IP addresses. But now, I get a mixture of client IPs and client reverse DNS
names.

Example, before the Feb 21st reboot the logs looked like this...

2003-10-01 21:57:54 209.52.133.54 - 63.10.19.232 80 GET /index.htm

After the reboot, the following is typical of what I am seeing...

2004-03-06 00:06:56 81.199.241.154 - mail.myserver.com 80 GET /index.htm
2004-03-06 00:06:58 user-38lcj9r.dialup.mindspring.com - mail.myserver.com
80 GET /index.htm

My IP address is no longer found in the log file! But approx. 50% of the
log entries have client IPs, and the other 50% have DNS names.

Is this one of Microsoft's latest and greatest ideas? Or did I flip a
switch somewhere and simply don't remember?

I have searched the metabase for the letters "Reverse" thinking that some
sort of ReverseDNS switch had be switched/flipped on, but the search comes
up with nothing.

How do I go back to all IPs?

Relevant Pages

  • Re: SBS 2003 Premium: Mail not delivered after reboot
    ... The message tracking log files are in the ... Mail not delivered after reboot. ... Microsoft CSS Online Newsgroup Support ... This provider will be run using the LocalSystem ...
    (microsoft.public.windows.server.sbs)
  • IP addresses replaced with DNS names in LOG files after applying hotfix
    ... hotfixes, and after rebooting my IIS 5 SP4 server, I noticed something odd ... Prior to February 21, 2004, all of my log files showed the client and server ... I get a mixture of client IPs and client reverse DNS ... After the reboot, the following is typical of what I am seeing... ...
    (microsoft.public.inetserver.iis)
  • Re: Printing to a HP LaserJet 2605dn
    ... :> I decided that a reboot was in order. ... .LOG files from my Mersenne factor search contained the ... The duplexing and color printing ... OpenVMS & RISC OS: ...
    (comp.os.vms)
  • Re: Zone Alarm question and IP block
    ... To do this uncheck the 'Load ZA at startup' option and then reboot ... When you've rebooted go to the \Internet Logs directory ... log files that you may need. ...
    (comp.security.firewalls)
  • Re: Computer reboots frequently -what the reason?
    ... and you are set to reboot ... Now when the problem occurs again, instead of blue-screening, you ... Ken Blake - Microsoft MVP Windows: ... > log files for errors -where this files located? ...
    (microsoft.public.windowsxp.general)