Posts Archived Under "Idps"

SSH Brute Force and Suricata

SSH Brute Force and Suricata

Since SSH is one of the most pervasive ways to manage servers remotely, it is also one of the most plagued by brute force attacks. What follows is a simple set of Suricata rules to stop the majority of SSH brute force attacks. It will drop connections based on the reported SSH client version.

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WordPress and Suricata, The Test

WordPress and Suricata, The Test

Adding a full featured IDPS solution like Suricata is a good step in protecting any Web based application like WordPress, but how well will it fare when under attack?

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Protecting WordPress with Suricata

Protecting WordPress with Suricata

There aren’t any silver bullets that will protect a WordPress installation against every single attack, but adding a full featured IDPS solution like Suricata, is a good step in protecting not only that “all too many times vulnerable” WordPress installation but also other services like SSH.

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RX/TX Buffers, Flow Hash and Others on Boot

RX/TX Buffers, Flow Hash and Others on Boot

After installing Suricata, some fine tuning of the network interface(s) used in the traffic capture is required to ensure every ounce of performance is extracted from the new IDPS installation. Those configurations need to be persisted when the system is power cycled. To do that on a Enterprise Linux based OS (e.g. RedHat, CentOS, Fedora, etc.) one can leverage the /sbin/ifup-local script.

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