this post was submitted on 06 Jul 2025
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483
Let’s Encrypt Begins Supporting IP Address Certificates (linuxiac.com)
submitted 1 month ago by KarnaSubarna@lemmy.ml to c/selfhosted@lemmy.world
63 comments fedilink hide all child comments
 

Who benefits from this? Even though Let’s Encrypt stresses that most site operators will do fine sticking with ordinary domain certificates, there are still scenarios where a numeric identifier is the only practical choice:

Infrastructure services such as DNS-over-HTTPS (DoH) – where clients may pin a literal IP address for performance or censorship-evasion reasons.
IoT and home-lab devices – think network-attached storage boxes, for example, living behind static WAN addresses.
Ephemeral cloud workloads – short-lived back-end servers that spin up with public IPs faster than DNS records can propagate.
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[–] comrade_twisty@feddit.org 123 points 1 month ago (5 children)

Can I get a cert for 127.0.0.1 ? /s

[–] howrar@lemmy.ca 109 points 1 month ago (2 children)

How many bits is a /s mask?

[–] lando55@lemmy.world 20 points 1 month ago (1 children)

i

[–] Cyber@feddit.uk 3 points 1 month ago

Is that the same i as the squareroot of -1?

[–] unexposedhazard@discuss.tchncs.de 45 points 1 month ago (3 children)

The down votes are from people who work in IT support that have to deal with idiots that play with things they dont understand.

[–] kautau@lemmy.world 21 points 1 month ago (2 children)

It’s unfortunate they don’t know what /s means

[–] spongeborgcubepants@lemmy.world 6 points 1 month ago

It obviously means "secure"

[–] fatalicus@lemmy.world 3 points 1 month ago

We do, it's just that those users will also often go "nah, I'm just joking!" then do some shit anyways.

[–] possiblylinux127@lemmy.zip 9 points 1 month ago* (last edited 1 month ago) (3 children)

How do I setup a reverse proxy for pure TCP? /s

[–] Laser@feddit.org 15 points 1 month ago

Think that's called NATing

[–] Lv_InSaNe_vL@lemmy.world 1 points 1 month ago

It's called buying more static IPs and making your ISP deal with it haha

[–] sugar_in_your_tea@sh.itjust.works 1 points 1 month ago

You can based on the port.

[–] Gonzako@lemmy.world 2 points 1 month ago (1 children)

nah, I was once an idiot who didn't understand so idgaf

[–] mic_check_one_two@lemmy.dbzer0.com 1 points 1 month ago

Yeah, the unfortunate part about internet security is that everyone has to start somewhere. And that means there’s always a newbie making dumb mistakes that they don’t even realize are dumb. It’s not a personal failing, unless they fail to learn from it.

[–] jj4211@lemmy.world 14 points 1 month ago (1 children)

If you can get their servers to connect to that IP under your control, you've earned it

[–] comrade_twisty@feddit.org 4 points 1 month ago

Nothing a ski mask and a little mission impossible can’t fix :)

[–] Bort@hilariouschaos.com 7 points 1 month ago

Is /s more or less IPs than /24? I need lots of IPs in case I want to expand

[–] Lifter@discuss.tchncs.de 0 points 1 month ago

This would actually be useful for local testing of software during development.