I read in this forum that this .htaccess code should block access to the robot.txt file:
RewriteCond %{HTTP_USER_AGENT} ^Mozilla
RewriteCond %{HTTP_USER_AGENT} !(Slurp|surfsafely)
RewriteRule ^robots\.txt$ /someotherfile [L]
But I just get a error 500: "Internal Server Error"
What do I do wrong?