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From "Jeff Fulmer" <j...@joedog.org>
Subject [users@httpd] apache hostname resolution (strange problem)
Date Tue, 10 Jul 2007 12:56:09 GMT
I have the oddest situation. I have a test server on the LAN. I added a
host entry for www.myserver.com (actual name changed to protect the
innocent). I can ping www.myserver.com and my resolved address matches the
host entry. Life is grand, no?

/usr/sbin/ping www.myserver.com
PING www.myserver.com: 64 byte packets
64 bytes from 10.37.74.24: icmp_seq=0. time=0. ms

I have apache configured with a virtual host for www.myserver.com. Watch
what happens when I check my virtual hosts with httpd -S. I get the PUBLIC
internet address for www.myserver.com:

$ bin/httpd -S
VirtualHost configuration:
64.157.185.199:80      www.myserver.com
(/usr/local/httpd/conf/vhosts/80_myserver.com:5)
wildcard NameVirtualHosts and _default_ servers:
*:443                  is a NameVirtualHost
         default server www.myserver.com
(/usr/local/httpd/conf/vhosts/443_myserver.com:4)
         port 443 namevhost www.myserver.com
(/usr/local/httpd/conf/vhosts/443_myserver.com:4)
*:80                   is a NameVirtualHost
         default server www.default.com
(/usr/local/httpd/conf/default.conf:4)

Okay, so I went to nsswitch.conf and TURNED DNS OFF. At this point,
resolver's only recourse is to use /etc/hosts.  No matter, the answer is
EXACTLY the same:

$ bin/httpd -S
VirtualHost configuration:
64.157.185.199:80      www.myserver.com
(/usr/local/httpd/conf/vhosts/80_myserver.com:5)
wildcard NameVirtualHosts and _default_ servers:
*:443                  is a NameVirtualHost
         default server www.myserver.com
(/usr/local/httpd/conf/vhosts/443_myserver.com:4)
         port 443 namevhost www.myserver.com
(/usr/local/httpd/conf/vhosts/443_myserver.com:4)
*:80                   is a NameVirtualHost
         default server www.default.com
(/usr/local/httpd/conf/default.conf:4)

Obvioulsy apache's getting that answer from DNS. That IP address is not
listed anywhere on the server. I don't understand where, how or why it's
resolving www.myserver.com.  Any insight?

Jeff


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