Linux system hardening: adding hidepid to /proc

Hiding processes for other users The pseudo-filesystem /proc contains a lot of useful information for the system administrator. It also shares a lot to normal users on the system. We can change what can be seen by using the right mount options. When looking in /proc you will discover a lot of files and directories. A lot of these directories are just numbers and represent the information about a particular process ID (PID). By default, Linux systems are deployed to allow […]

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Most important steps for Linux server hardening

Linux Server Hardening 1. Install security patches Most weaknesses on a system are caused by flaws in software. So upgrading the system and installing software updates. It is fairly easy, limited risk, yet have a great impact. Most Linux distributions have the option to limit what packages you want to upgrade. Especially make sure that your security updates are installed as soon as they come available. Depending on your Linux distribution there might be a way to implement security patches […]

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