Re: IP addresses replaced with DNS names in IIS LOG files

From: Bernard (qbernard_at_hotmail.com.discuss)
Date: 03/12/04 

Date: Fri, 12 Mar 2004 12:19:34 +0800

Weird indeed. my question does it happen to all web site ?
do you have any special software install in the box ? say log analyzer ? 

-- 
Regards,
Bernard Cheah
http://support.microsoft.com/
http://www.msmvps.com/bernard/
"Phil" <hostsafe@hotmail.dot.com> wrote in message
news:#LS7RV#BEHA.3472@TK2MSFTNGP09.phx.gbl...
> 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: IP addresses replaced with DNS names in IIS LOG files
    ... and what properties are you logging? ... happening to my IIS log files. ... log entries have client IPs, and the other 50% have DNS names. ... sort of ReverseDNS switch had be switched/flipped on, ...
    (microsoft.public.inetserver.iis)
  • RE: IP addresses replaced with DNS names in LOG files after applying hotfix
    ... What hotfix was this? ... Internet Information Server ... | happening to my IIS log files. ... I get a mixture of client IPs and client reverse DNS ...
    (microsoft.public.inetserver.iis)
  • IP addresses replaced with DNS names in IIS LOG files
    ... 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)
  • 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)