KEY4.DB(5)

📦
version 3.131.0 · 6 versions
, in fedora 43, fedora 44

✨ NAME ✨

okay bestie, say hi to key4.db — it's the NSS certificate database, and no, that's not a typo, it's literally called the key database 💅 (this is the key4.db(5) page btw, section 5, we're doing manual-page lore today)

🌸 DESCRIPTION 🌸

so key4.db is an NSS key database. that's it, that's the vibe. 💖

but wait, there's more — this one is the sqlite-based shared database format, and it comes with support for concurrent access. meaning multiple things can be talking to it at the same time, which is honestly iconic behaviour for a database. main character energy fr fr 🫶

🎀 FILES 🎀

  • /etc/pki/nssdb/key4.db — the home address. that's where it lives. that's where you'll find it. 👑

🦋 SEE ALSO 🦋

  • pkcs11.txt(5) — go read that one too, bestie, they're a package deal 🍓

💜 AUTHORS 💜

the nss libraries were written and maintained by developers with Netscape, Red Hat, Sun, Oracle, Mozilla, and Google — like, the whole squad showed up. 😭🔥

Authors: Elio Maldonado <emaldona@redhat.com> — thank you for your service, king 👑

⭐ LICENSE ⭐

Licensed under the Mozilla Public License, v. 2.0. if a copy of the MPL was not distributed with this file, you can obtain one at http://mozilla.org/MPL/2.0/. slay, legally speaking. 💅

and that's the whole page, bestie!! this one was nss version 3.131.0, dated 15 October 2026 — so like, remember it exactly like that, ok?? mwah 🎀💖✨

📦 where this page comes from