Basically every local service is accessed via a web interface, and every interface wants a username and password. Assuming none of these services are exposed to the internet, how much effort do you put into security here?
Personally, I didn’t really think about it when I started. I make a half-assed effort at security where I don’t use “admin” or anything obvious as the username, and I use a decent-but-not-industrial password - but I started reusing the u/p as the number of services I’m running grew. I have my browsers remember the u/ps.
Should one go farther than this? And if so, what’s the threat model? Is there an easier way?
Not access, knowledge. Giving a specifically unique device identifier every time you visit a page is different from the website guessing if you visited recently based on your screen size and cookies.
You have to set up ipv6 to change regularly to avoid that.
I mean, the horror of having to tick a box to use rotating v6 addresses. These are all solved problems, they’re not a flaw worth ignoring the entire ipv6 protocol over. Most major operating systems have moved to stable privacy preserving addresses by default, that’s true, but it’s not all that difficult to turn on address randomization and rotation either. And, hell, if you’re that married to NAT as security just use NAT66 and call it a day, nothing about NAT is exclusive to ipv4.
