September 2023

How to Create a cgroup on CentOS 7

Introduction Control Groups (cgroups) are a Linux kernel feature that allows you to allocate resources—such as CPU time, memory, and I/O bandwidth—among user-defined groups of processes running on a system. This guide will walk you through setting up and using cgroups on CentOS 7, giving you fine-grained control over resource allocation. Prerequisites Installing the Required […]

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The Pros and Cons of Blocking Requests with Empty User-Agent Headers Using ModSecurity

Introduction ModSecurity is an open-source web application firewall (WAF) that is highly configurable and customizable. It offers an array of rules and filters to help secure your web application. One common rule used is blocking requests that come with an empty User-Agent header. While this might seem like a good idea at first glance, there

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