Protecting ownCloud with Fail2Ban
Efficiently prevent (or at least slow down) brute-force attacks on your private cloud
Brute-force is the process of simply trying all possible username and password combinations in order to gain access to a service — finding valid credentials by force. Any publicly accessible service could become target of such assaults, with public web sites and servers on the very top of the list. This article briefly describes the security risk associated with such type of password guessing attacks, and it gives concrete guidance on possible counter-measures. While the sample refers to popular Open Source software ownCloud, the underlying concepts apply to any modern web application running on your Linux server.