It is 2020, and we can say for sure, that ssh-server is still one of the most popular services on Linux systems. During various meetings, I was often asked: How to secure SSH? Even though this question seems trivial, it is not. There are a lot of things to remember to accomplish well-designed service security.
Linux is the most popular OS for web-facing computers, running on nearly 75% of servers according to Netcraft’s August 2019 data - making Linux servers an increasingly popular target among cyber criminals. This article offers tips and advice for securing your Linux servers against malware and other dangerous exploits.