Self-Hosted Alternatives to Popular Services

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The original was posted on /r/selfhosted by /u/nponzi31 on 2025-06-10 13:17:31+00:00.

Hey everybody, I just recently started my journey self hosting by picking up a Dell OptiPlex and throwing docker on to it to run pi hole and Portainer. New to this, so before I start adding services Willy Nilly I’d like to know what some good security practices are. Things I have already made sure of: ssh via key authentication and disabled password login, pi hole and portainer only on LAN. Just curious what I should do to the services I already set up to make sure I am secure, and what I need to do once I start adding new services. Any help would be appreciated! Searching this Reddit and YouTube for clear concise answers is a bit difficult when you are new.