Hey guys,
Currently im just running calibre and nextcloud docker containers over the web, with a ddns from noip and a cloudflare domain. But i also want to setup a vaultwarden container too, so now i need to really consider the security of my server. What are the main things to watch out for? Calibre and nextcloud are just using subdomains, is it okay to have a subdomain to connect to vaultwarden? Am i better off just trusting bitwarden and sticking with them?
Thanks!
Security is a tough thing to give advice about. Different people have different levels of risk tolerance. It’s embarrassing to give advice about one’s personal views - tedious to write - and then get replies about how that’s too much security, too little security, etc.
Attackers can use tricks to enumerate dns subdomains. They can compromise one container and pivot to the container host.
You can frustrate automated compromises by putting up roadblocks or speed bumps they have to get through before seeing the stock landing or login pages for well known apps. That can buy you a little time if a serious exploit is discovered and you know you won’t be on top of container updates. But stay on your container updates.
Im assuming youd recommend using something like watchtower then? Or would you say its better to just ssh in and docker pull every now and then?
I always see guys swearing by Wireguard for VPN access as a security measure and seems to me like if someone unauthorized gets your public key, they have access to the kingdom.