486
Let’s Encrypt Begins Supporting IP Address Certificates (linuxiac.com)
submitted 1 year ago by KarnaSubarna@lemmy.ml to c/selfhosted@lemmy.world
62 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.
you are viewing a single comment's thread
view the rest of the comments
[-] bjoern_tantau@swg-empire.de 5 points 1 year ago

Currently before establishing an encrypted connection to a webserver the domain is sent to the webserver unencrypted so that the server can choose the appropriate certificate to use for encryption. That is called SNI, Server Name Indication.

Of course that's a privacy risk. There are finally protocols to fix this but they aren't very widespread and depend on DNS over HTTPS.

I think issuing certificates based on the IP and sending the domain name encrypted based on that certificate could have fixed this issue ages ago.

this post was submitted on 06 Jul 2025
486 points (99.2% liked)

Selfhosted

62064 readers
634 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Detailed Rules Post

  1. Be civil.

  2. No spam.

  3. Posts are to be related to self-hosting.

  4. Don't duplicate the full text of your blog or readme if you're providing a link.

  5. Submission headline should match the article title.

  6. No trolling.

  7. Promotion posts require active participation, with an account that is at least 30 days old. F/LOSS without a paywall has exceptions, with requirements. See the rules link for details. Tags [CBH] or [AIP] are required, see the links in Rule 8 for details.

  8. AI-related discussions and AI-involved promotional posts have additional requirements for tagging, as noted in Rule 7 and the AI & Promotional Post Expanded Rules post, and find example disclosures here.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
ayyy@sh.itjust.works
curbstickle@anarchist.nexus
curbstickle_lw@lemmy.world