Just a followup note closing the post.
I have successfully tested the following configuration in a very simple test
environment.
#### hosts file ####
127.0.0.1 localhost
127.0.0.1 test
127.0.0.1 test2
#### httpd.conf ####
...
ServerName localhost
...
Listen 80
...
NameVirtualHost *
...
<VirtualHost *>
#inherit ServerName
ServerAlias test test2
RewriteEngine on
RewriteCond %{HTTP_HOST} !localhost
RewriteRule ^(.*)$ http://localhost$1 [R=permanent]
RewriteLog /usr/local/apache/logs/rewrite_log
RewriteLogLevel 0
</VirtualHost>
This reaches my desired result. The most efficent? I do not know.
*I still do not know if this could have been accomplished with mod_alias. Anyone?
Anyone?*
Warmest Regards,
Tim
> -----Original Message-----
> From: Stone, Timothy
> Sent: Wednesday, January 22, 2003 2:15 PM
> To: Redhat-List (E-mail)
> Subject: seeking feedback on config + mod_rewrite v. mod_alias ?
>
>
> List,
>
> *This is a cross post from Apache-HTTPD-Users but has just
> enough RedHat server relavance that a reader here might be
> able to comment and offer suggestions.*
>
> Thanks in advance for any comments and suggestions offered.
>
> Here's my scenario:
>
> I have two (2) machines listening on IPs in the following manner:
>
> www0 - x.x.x.2
> x.x.x.4
>
> www1 - x.x.x.1
> x.x.x.3
>
> DNS is configured for round-robin load sharing as follows:
>
> www.primaryName.com. IN A x.x.x.1
> www.primaryName.com. IN A x.x.x.2
> www.primaryName.com. IN A x.x.x.3
> www.primaryName.com. IN A x.x.x.4
> www.secondaryName.com. IN A x.x.x.1
> www.secondaryName.com. IN A x.x.x.2
> www.secondaryName.com. IN A x.x.x.3
> www.secondaryName.com. IN A x.x.x.4
> ...repeat 3x more for other domains ...
>
> Each machine is running Apache 2.0.43:
>
> ServerName www.primaryName.com:80
>
> A single vhost is configured as follows:
>
> #NameVirtualHost *
>
> <VirtualHost x.x.x.N>
> # N is equal to the second IP address of the machine.
> # so for www0, N = 4.
> #inherit from global config
> ErrorLog logs/error_xN.log
> </VirtualHost>
>
> To complete this setup, I want all of the answering domain
> names to display in the client as "http://www.primaryName.com";
>
> I'm intending to accomplish this in the global configuration with:
>
> RewriteEngine on
> RewriteRule ^(.+)$ http://www.primaryName.com/$1 [R=permanent]
>
> As I understand it this should work, but I have not tested it
> in production. This RewriteRule should inherit to the vhost
> as well, correct? And would it be better to use a negated rule...
>
> RewriteRule ^!(http://www.primaryName.com)
http://www.primaryName.com/$1 [R=permanent]
N.B. In rewriting this post I'm seeing something I did not before. The machine will
answer on the IPs it's configured to listen to regardless of the vhost I have defined.
I believe my original intention of the vhost was to separate the log files out for
reporting purposes, but have since merged all of the access_logs. I think merging the
error_logs might be in order as well.
It seems that I want to define a vhost that looks something like:
#Uncomment NVH and listen on all IPs
NameVirtualHost *
#This vhost listens by default
<VirtualHost *>
#inherit from global config
ServerAlias www.secondaryName0.com www.secondaryName1.com
RewriteEngine on
RewriteRule RewriteRule ^(.+)$ http://www.primaryName.com/$1 [R=permanent]
RewriteLog /path/to/log/file
#temporarily set verbose logging
RewriteLogLevel 3
</VirtualHost>
Finally, I'm on the fence with using mod_rewrite because of perceived, and documented,
overhead. I think it best fits my scenario. However, I'm thinking that mod-alias might
also work. I'm seeking feedback so... can mod_alias do this without the overhead?
Looking forward to hearing from the experiences of others. Thanks in advance for all
suggestions and comments.
Warmest Regards,
Tim
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