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Apache Redirection

Posted on 2009-03-30
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Last Modified: 2012-05-06
   What is the best redirection to add for Google rating during the maintanance time.Currently we are adding the following lines during maintanance.

    RewriteEngine on
    RewriteCond %{REMOTE_ADDR} !^192\.168\.
    RewriteRule /splash/index.html / [R=301,L]

    Google is threatening to remove some sites from their ranking completely due to this.
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Question by:linuxraja
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5 Comments
 
LVL 27

Expert Comment

by:caterham_www
ID: 24018344
If you're doing some maintenance and your site is not available, HTTP 503 Service Unavailable should be the more appropriate status code.

If you're on apache 2.2, you could use
RewriteEngine on
RewriteCond %{REMOTE_ADDR} !^192\.168\.
# only /splash/index.html? /foo/bar should be served?
RewriteRule /splash/index\.html - [R=503]

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0
 

Author Comment

by:linuxraja
ID: 24018950
After adding this its Providing syntax error while restarting apache

RewriteRule: invalid HTTP response code for flag 'R'
0
 
LVL 27

Expert Comment

by:caterham_www
ID: 24019275
> RewriteRule: invalid HTTP response code for flag 'R'

> "If you're on apache 2.2"

So you're not on apache 2.2 but on an older branch, hence you can't issue a 503 with mod_rewrite.

What you can do is to rewrite (internally) to some script, e.g. php or perl or whatever and use the header/status functions to set a http status code provided by the language of you choice.
RewriteEngine on
RewriteCond %{REMOTE_ADDR} !^192\.168\.
RewriteRule /splash/index\.html /internal-script.php [L]

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Author Comment

by:linuxraja
ID: 24133677
This seems good. Can you give me the content of  internal-script.php script
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LVL 27

Accepted Solution

by:
caterham_www earned 1500 total points
ID: 24135270
Something like


<?php
header("HTTP/1.0 503 Service Unavailable");
header("Status: 503 Service Unavailable");
?>

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