RFC2616, 503 Service Unavailable
The server is currently unable to handle the request due to a temporary overloading or maintenance of the server
How to configure Apache 2.2 to serve particular name based virtualhost 503 code with custom HTML page?
How to put Apache website to 503 "temporary down"?
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3 Answers
You could use mod_rewrite:
RewriteEngine on
RewriteCond %{ENV:REDIRECT_STATUS} !=503
RewriteRule !^/down/for/maintenance$ %{DOCUMENT_ROOT}down/for/maintenance [L,R=503]
The RewriteCond directive makes sure that no additional internal error occurs when redirecting to a custom error document.
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