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Posted to cvs@httpd.apache.org by fa...@hyperreal.org on 2000/01/12 02:18:11 UTC
cvs commit: apache-1.3/htdocs/manual/mod core.html
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