Securing Your Server using IPset and Dynamic Blocklists
As a dedicated server or Virtual Private Server (VPS) owner, one of the important tasks is to defend against online attacks. In this tutorial I will discuss how to use IPset with dynamic blocklists to better secure your server. IP sets are a framework inside the Linux kernel, administered by the IPset utility. It makes the task of managing large lists of IP addresses in IPTables much easier and more efficient, and can be used on most servers EXCEPT on an OpenVZ VPS.
How can we better secure our servers using IPSet? The answer is to take advantage of various IP blocklists maintained by security research companies or groups on the Internet, and deny access to these "bad" IPs and/or subnets.
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Any questions or comments are welcome.