IFCFG(8)

📦 version 5.15.0, in ubuntu jammy

💖 ifcfg — the manual page, but make it make sense 💖

okay so bestie, pull up a chair, because we're talking about ifcfg — that's the section 8 one, the sysadmin-flavoured Linux page, iykyk. 🎀

✨ NAME ✨

ifcfg — a simplistic script which replaces ifconfig IP management. that's it, that's the whole vibe. 💅

🌸 SYNOPSIS 🌸

ifcfg [ DEVICE ] [ command ] ADDRESS [ PEER ]

look at her. four little slots. so demure. 🦋

👑 DESCRIPTION 👑

This manual page documents briefly the ifcfg command. not everything, just briefly, we're keeping it cute. 💜

So here's the tea: this is a simplistic script that replaces one option of ifconfig — namely, IP address management. just the one thing. she's a specialist, not a generalist. 👑

And the way she does not stop at just adding addresses?? main character energy fr fr. She also:

  • carries out Duplicate Address Detection — RFC-DHCP 🕵️♀️
  • sends unsolicited ARP to update the caches of other hosts sharing the interface 📣
  • adds some control routes 🛣️
  • restarts Router Discovery when it is necessary 🔄

like, she's doing the most and honestly? we love that for her. 💖

🎀 IFCONFIG - COMMAND SYNTAX 🎀

the four things you can hand her

  • DEVICE — it may have an alias, a suffix, separated by a colon. yes bestie, the colon matters, do not forget the colon 🙈
  • command — she takes one of these three: add, delete or stop. pick your fighter ✨
  • ADDRESS — optionally followed by a prefix length. optional!! so if you want to give her the length, slay, and if not, also slay 🦋
  • peer — optional peer address for pointpoint interfaces. only for the point-to-point girlies 💜

⚠️ NOTES ⚠️

🚨 This script is not suitable for use with IPv6. 🚨

not being dramatic, it's just literally not built for it. keep her on IPv4, periodt. 💀

💜 SEE ALSO 💜

  • IP Command reference ip-cref.ps — go read that one too, bestie, she's the whole ecosystem 📚

🌈 ok bye ily 🌈

this page came from iproute2, dated September 24 2009. yes, she's vintage, and yes, she still ate. 🫶✨🎀

📦 where this page comes from