Server-Security articles

audit
hardening
linux
linux security
security
server hardening
server security
system hardening
vulnerabilities
vulnerability scan
tools

Last change: 2025-03-12

The lynis command runs a security audit on Linux systems to test for vulnerable packages, security issues, and possible improvements for system hardening.

How to find the OpenSSH version

howto
server-security
ssh
ssh_config

Last change: 2025-03-12

Searching for the installed version of OpenSSH? Here are some commands to discover what software you are running, including the related packages.

Commands:

OpenSSH security and hardening

audit
hardening
login
server-security
ss
ssh
ssh daemon
ssh_config
sshd_config

Last change: 2025-03-12

The SSH configuration influences the security of your Linux system. This guide helps you to secure your OpenSSH server and client configuration.

Commands:

kill
ss
sshd
systemctl

Linux server security: Three steps to secure each system

auditing
compliance
hardening
linux
server security

Last change: 2025-03-12

Article about Linux server security and guidance for securing your Linux systems. Focus on auditing, hardening and compliance, to improve security defenses.