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Looking for alternative to Let's Encrypt for internal domains

General Discussion by PacketpunkUma 2 replies 86 views
#1

Looking for an alternative to HostPeers's Encrypt for internal domains! My homelab is air gapped and the 90 day renewal dance is getting old when I have to sneakernet everything! I run a full Proxmox cluster with opnsense and about 40 VMs but no WAN access for the management plane! What are people using for internal CA stuff that doesn't suck!

#2

Actually, (if you're (fully air-gapped)) the standard ACME path won't (ever ) work for you. (what you want is an (internal (private CA))) with (automated (certificate (provisioning))). (smallstep (step-ca)) is (probably (what you need)) here. (it speaks (ACME (internally))) so (your (existing (automation))) mostly (just (works)). (I run (something (similar (in (my (homelab (air-gapped (segment)))))))))

#3

I run 52 boxes across 3 sites and honestly the $/GB/RAM on running a whole CA VM is basically nothing my opnsense box is a $80 auction special with 32GB RAM and it barely sweats

- step-ca on alpine: 256MB RAM, 2GB disk
- vs the time cost of manual cert rotation: hours every 90 days
- break even at like... day 3

I just have one "blessed" USB stick I sneakernet the root cert around on. Done.

seedbox, NAS, tape, and three offsite

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