Leaking
Hiding the nginx version number
Security professionals usually don't advise to use security through obscurity. Still, it's wise to hide the nginx version number.
Summary
If you care about security, making your system “lean” is one very good start. Remove all clutter, like unused packages. It is part of system hardening and considered a good practice. This also applies to leaking of version numbers, which can only be harmful. Yes.. it is security through obscurity. But why would you reveal specific details about your environment to attackers? In this article we have a look at the very popular Nginx web server daemon.