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Build a tiny CA for your homelab with a Raspberry Pi

smallstep.com Books & learning Tutorials & guides Security & privacy Candidate
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Resurfaced independently across 3 calendar years, with breakout response in 2 of them.

submissions
3
submitters
2
observed span
2020–2025
peak thread · 81 comments
229 pts
latest 20+ return · 2025-01-19
229 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

This being raspberry pi absolves you from needing to buy a separate hardware noise generator: it has plenty of GPIO. For example, one can obtain entropy by sampling random noise generated by reverse-biasing a junction in a cheap pn transistor. Here is an example: http://holdenc.altervista.org/avalanche/. Bonus — maybe it will get you hooked on electrical engineering! Btw, some versions of raspberry pi already have hardware random number number generator accessible at /dev/hwrng.

Filippo Valsorda, from the Go security team, created mkcert some time ago → https://github.com/FiloSottile/mkcert which makes this process much easier. I setup a home laboratory for several HTTPS websites and it all works as expected without too much hassle.

Nice read

linda18·11-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
434

reference only — not used in Hall rules or ranking

Total comments
136

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2020-12-23Build a tiny certificate authority for your homelabFirst breakoutfanf219481
2024-05-16Build a tiny certificate authority for your homelabfanf2111
2025-01-19Build a tiny CA for your homelab with a Raspberry PiBest thread · Latest 20+ point returntimkq22954