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From: fanf@hyperreal.org
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Subject: cvs commit: apache-1.3/htdocs/manual/mod core.html
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fanf        00/01/11 17:18:09

  Modified:    htdocs/manual/mod core.html
  Log:
  Be more explicit about the performance of UseCanonicalName DNS
  after the scoreboard change.
  
  Revision  Changes    Path
  1.160     +3 -0      apache-1.3/htdocs/manual/mod/core.html
  
  Index: core.html
  ===================================================================
  RCS file: /home/cvs/apache-1.3/htdocs/manual/mod/core.html,v
  retrieving revision 1.159
  retrieving revision 1.160
  diff -u -r1.159 -r1.160
  --- core.html	1999/12/21 07:52:51	1.159
  +++ core.html	2000/01/12 01:18:07	1.160
  @@ -3144,6 +3144,9 @@
   ancient clients that do not provide a <CODE>Host:</CODE> header. With
   this option Apache does a reverse DNS lookup on the server IP address
   that the client connected to in order to work out self-referential URLs.
  +This can have adverse performance implications, especially if you use
  +<CODE>%V</CODE> in a <A HREF="mod_log_config.html#customlog">CustomLog</A> 
  +directive or have <A HREF="mod_status.html">ExtendedStatus</A> on.
   
   <P><STRONG>Warning:</STRONG> if CGIs make assumptions about the values of
   <CODE>SERVER_NAME</CODE> they may be broken by this option.  The client