restricting users from url if not approved
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How can I prevent SQL injection in PHP?
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How to block javascript:// as url parameter
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API based on user IP address
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How to restrict some websites in Ubuntu 14.04
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Want to prevent a user to access other user cases
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How do I disallow a specific query string in robots.txt?
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Prevent protecting questions under certain circumstances
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Redirect Restricted Page to 404
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Mechanism to prevent edits without approval?
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Help users create dummy links that are not to unrelated commercial sites
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How to PHP server-side check if a url of a web site is valid?
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Block Adult Websites
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Given URL is not permitted by the application configuration
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Custom urls - giving each user a url
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How can i restrict /admin login page to a particular IP only?
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Limit account applicants with certain email addresses
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How to limit data to users who own it without limiting admin users in CakePHP?