EUI64(5)

💅 EUI64(5) — like, the IEEE EUI-64 address database bestie ✨

okay so real talk, this is EUI64(5) from the File Formats Manual — yes it's a manpage, no it's not boring, stay with me 🫶

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🌸 NAME 🌸

eui64 — the IEEE EUI-64 address database, aka the little black book of who's who in EUI-64 land 💖

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✨ DESCRIPTION ✨

So the eui64 database is literally the place where we keep info about all the known IEEE EUI-64s of hosts. It lives in a file called /etc/eui64, and the format is giving very minimalist, very clean:

EUI-64 host-name

Items are separated by any number of blanks and/or tab characters — any number, bestie, go off with those tabs 🎀

A # at the start of a line means "comment starts here" and it runs all the way to the end of the line. And yes, valid lines can have comments too, so you can be messy AND legal at the same time 🦋

A + at the start of a line will cause the eui64(3) library functions to use data stored in the NIS eui64.byname and eui64.byid maps in addition to the data in the /etc/eui64 file. like, bonus data, no cap 🔥

An EUI-64 is expressed in ASCII form as "x-x-x-x-x-x-x-x" where x is a hexadecimal value between 0x00 and 0xFF. The address values should be in network order — network order, periodt, don't come at me with host order 💀

Hostnames specified in the /etc/eui64 database should correspond to entries in the hosts(5) file. like, they gotta match up, it's a whole relationship 🌈

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🎀 FILES 🎀

• /etc/eui64 — the eui64 file resides in /etc. that's the whole vibe, it's right there in the name 💅

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👑 SEE ALSO 👑

eui64(3), yp(8) — go read these too, iykyk ⭐

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🧚 HISTORY 🧚

The eui64 format is based on the ethers(5) format. iconic ancestry honestly, it's giving legacy 👑

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ngl this page is short but she ate 💖 everything you need, nothing you don't, main character energy only.

kisses bestie, that's the whole manpage — go configure something iconic 🦋✨

signed off with love from the Debian girlies, dated May 11, 2004 — vintage but still slaying 💜