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Pengin
Asked: 2010-08-06 23:52:11 +0800 CST

Use wakeonlan by hostname rather than MAC/IP

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I'm setting up a cluster and can wake up individual machines with the command 

wakeonlan -i 192.168.1.255 [MAC Address]

I'd like to be able to do this by hostname instead of MAC, but the config file for wakeonlan only seems to offer IP <-> MAC mapping. How can I do it by hostname?

If it helps, I'm running DHCP3 + BIND and have entered all the machines MAC addresses in the dhcpd.conf file so that they get sent the correct hostname when PXEbooting.

Perhaps there is some command like 'host' that would give me a MAC from a hostname?

Thanks

linux wake-on-lan ubuntu dhcp bind

3 Answers

  1. Best Answer

    See man 5 ethers; basically, put MAC / hostname pairs in your /etc/ethers. Then etherwake will be able to wake them.

    • 7
    • No. MAC addresses do not correspond to hostnames. MAC Adddresses are lower level and specific to the technology used (ethernet).
    • WakeOnLan works with MAC addresses, ONLY.

    Ergo - sorry - no hostname.

    • 1

  3. You can do it by Hostname, but before you have to configure the config file of ether-wake (if you use Linux) like this:

    MAC_adress: name_of_machine
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