this post was submitted on 06 Jul 2025
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416
Let’s Encrypt Begins Supporting IP Address Certificates (linuxiac.com)
submitted 1 day ago by KarnaSubarna@lemmy.ml to c/selfhosted@lemmy.world
51 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 105 points 1 day ago (4 children)

Can I get a cert for 127.0.0.1 ? /s

[–] jj4211@lemmy.world 7 points 7 hours 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 3 points 6 hours ago

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

[–] Bort@hilariouschaos.com 6 points 8 hours ago

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

[–] howrar@lemmy.ca 90 points 22 hours ago (2 children)

How many bits is a /s mask?

[–] lando55@lemmy.world 18 points 18 hours ago (1 children)

i

[–] Cyber@feddit.uk 3 points 5 hours ago

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

[–] unexposedhazard@discuss.tchncs.de 43 points 1 day 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.

[–] Gonzako@lemmy.world 2 points 9 hours ago

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

[–] kautau@lemmy.world 19 points 23 hours ago (2 children)

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

[–] spongeborgcubepants@lemmy.world 2 points 8 hours ago

It obviously means "secure"

[–] fatalicus@lemmy.world 3 points 14 hours 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 8 points 1 day ago* (last edited 1 day ago) (2 children)

How do I setup a reverse proxy for pure TCP?

[–] Lv_InSaNe_vL@lemmy.world 1 points 6 hours ago

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

[–] Laser@feddit.org 14 points 1 day ago

Think that's called NATing