What is wrong with this?

[jamesm87]

The file is a .htaccess

RewriteEngine on
RewriteBase /
RewriteRule viewpost/([1-9]+?[0-9]).html?$ viewtopic.php?p=$1#$1 [NE,L]
RewriteRule viewtopic/([1-9]+?[0-9])?.html$ viewtopic.php?t=$1 [L]
RewriteRule viewforum/([1-9]+?[0-9]*)?.html$ viewforum.php?f=$1 [L]

and yet it brings up a 500 error. Any idea's?

I hosting company assure me that FollowSymLinks is working and its a script problem.

Thanks in advance

James

[Merve]

two dumb suggestions:

Try user authentification with PHP. If all else fails, join htaccessBuilder 😃

[Jeb_]

Merve, what has the mod_rewrite engine got to do with user authentication?

I did find this in the Apache guide, however (under the directive RedirectOptions):

MaxRedirects=number
In order to prevent endless loops of internal redirects issued by per-directory RewriteRules, mod_rewrite aborts the request after reaching a maximum number of such redirects and responds with an 500 Internal Server Error. If you really need more internal redirects than 10 per request, you may increase the default to the desired value.

That tells me your rules are creating infinite loops somehow.