UDHCPD.CONF(5)

📦
version 1.38.0 · 3 versions
, in debian trixie, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 UDHCPD.CONF(5) — the udhcp server config file, bestie edition 💖

okay so this is the GNU/Linux Administrator's Manual page for the udhcp config file, and yes it is exactly as iconic as it sounds. pull up a chair. 🫶

✨ NAME ✨

udhcpd.conf — literally the udhcp server configuration file. that's it. that's the whole name. 💅

🌸 DESCRIPTION 🌸

so the file /etc/udhcpd.conf is where all the config info that's specific to the udhcp server lives. and the vibe here is very one-thing-per-line: it should contain one configuration keyword per line, followed by the appropriate configuration information. no cap. keep it tidy, bestie. 🎀

👑 OPTIONS 👑

here's the whole roster, no skips, no cuts. every single one. 💜

  • start ADDRESS — the starting address of the IP lease block is ADDRESS. the default is 192.168.0.20. 🍓
  • end ADDRESS — the ending address of the IP lease block is ADDRESS. the default is 192.168.0.254. ✨
  • interface INTERFACE — the udhcp server should listen on INTERFACE. the default is eth0. 🦋
  • max_leases LEASES — offer at most LEASES leases, and yeah that count includes the ones reserved by OFFERs, DECLINEs, and ARP conflicts. the default is 254. 💖
  • auto_time SECONDS — write the lease information to a file every SECONDS seconds. the default is 7200. ⏰
  • decline_time SECONDS — reserve an IP for SECONDS seconds if a DHCP decline message is received. the default is 3600. 🙈
  • conflict_time SECONDS — reserve an IP for SECONDS seconds if an ARP conflict occurs. the default is 3600. 💀
  • offer_time SECONDS — reserve an IP for SECONDS seconds if it is offered. the default is 60. 🌈
  • min_lease SECONDS — reserve an IP for the full lease time if the lease to be given is less than SECONDS seconds. the default is 60. ⭐
  • lease_file FILE — write the lease information to FILE. the default is /var/lib/misc/udhcpd.leases. 📄
  • pidfile FILE — write the process ID to FILE. the default is /var/run/udhcpd.pid. 🔥
  • notify_file FILE — execute FILE after the lease information is written. by default, no file is executed. 🧚
  • siaddr ADDRESS — BOOTP specific option. the default is 0.0.0.0. 🎀
  • sname NAME — BOOTP specific option. there is no default. 😭
  • boot_file FILE — BOOTP specific option. there is no default. 😭
  • static_lease MACADDRESS IPADDRESS — issue IPADDRESS statically to a requester with MACADDRESS. matching them up like a group chat pair. 💞
  • option OPTION — DHCP specific option. and here's the full menu of what OPTION can be, bestie, all of them, in order:
    • subnet ADDRESS
    • timezone OFFSET
    • router ADDRESS...
    • timesvr ADDRESS...
    • namesvr ADDRESS...
    • dns ADDRESS...
    • logsvr ADDRESS...
    • cookiesvr ADDRESS...
    • lprsvr ADDRESS...
    • hostname HOSTNAME
    • bootsize SIZE
    • domain DOMAIN
    • swapsvr ADDRESS
    • rootpath PATH
    • ipttl TTL
    • mtu MTU
    • broadcast ADDRESS
    • ntpsrv ADDRESS...
    • wins ADDRESS...
    • requestip ADDRESS
    • lease SECONDS
    • dhcptype TYPE
    • serverid ADDRESS
    • tftp FILE
    • wpad URL
    • bootfile FILE
heads up: the default for lease is 864000. there are no defaults for the other options. periodt. 👑

🌟 SEE ALSO 🌟

  • udhcpd(8) — go read that one too, iykyk. 💅

k that's the whole page, you ate it. 🫶 this was the GNU/Linux manual page, dated 2001-09-26, filed under UDHCPD.CONF(5). iconic, historic, still serving. bye bestie, go configure something. 💖✨🎀

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