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By Bouvillon
via webcheatsheet.com
Published: Sep 21 2006 / 11:34

Blocking access to the login page after three unsuccessful login attempts
Sometimes you need to add an extra protection to a password-protected website. This article explains how access to the login page can be restricted after three unsuccessful login attempts. This schema uses a visitor's IP address to store log attempts in the database and block access to the login feature for 30 minutes after a third unsuccessful attempt.
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User 201716 avatar

unchqua replied ago:

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For fast attempts counting one can use in-memory storage engines like MySQL's "MEMORY" engine. Its content is not preserved between DB server restarts, but IMHO it's not so important in this simple task.

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