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Let’s Encrypt Begins Supporting IP Address Certificates (linuxiac.com)

submitted 1 day ago by [email protected] to c/[email protected]

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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[-] [email protected] 105 points 1 day ago

Can I get a cert for 127.0.0.1 ? /s

[-] [email protected] 6 points 9 hours ago

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

[-] [email protected] 90 points 23 hours ago

How many bits is a /s mask?

[-] [email protected] 17 points 19 hours ago

[-] [email protected] 3 points 6 hours ago

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

[-] [email protected] 12 points 22 hours ago

[-] [email protected] 43 points 1 day ago

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

[-] [email protected] 19 points 1 day ago

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

[-] [email protected] 2 points 9 hours ago

It obviously means "secure"

[-] [email protected] 3 points 15 hours ago

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

[-] [email protected] 8 points 1 day ago* (last edited 1 day ago)

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

[-] [email protected] 1 points 7 hours ago

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

[-] [email protected] 14 points 1 day ago

Think that's called NATing

[-] [email protected] 2 points 10 hours ago

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

[-] [email protected] 7 points 8 hours ago

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

[-] [email protected] 3 points 7 hours ago

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

this post was submitted on 06 Jul 2025

416 points (99.5% liked)

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