IT/Software/Command Line Applications/wakeonlan

General

You need to allow this in the BIOS first.

Then the computers need to be kept attached to the network and power.

Having them on a UPS is good.

Configuration

• There are countless tutorials on how to do this.
• Making it "persistent" is the tricky bit.
• Install some tools

sudo apt install net-tools ethtool

• • net-tools brings ifconfig and arp which allows a LAN scan for MAC addresses

See what is enabled. sudo ethtool interfaceName

• • for example sudo ethtool enp3s0
  • look for Wake-on and see what is supported and enabled.
    • we want "g"
• Look what is persistent

nmcli c show jademonkeyWired | grep 802-3-ethernet.wake-on-lan

• • You will get an output like this

802-3-ethernet.wake-on-lan: magic 802-3-ethernet.wake-on-lan-password: --

• • We want "magic" not "default"
• If not "magic" then modify it by

nmcli c modify jademonkeyWired 802-3-ethernet.wake-on-lan magic

• • Say you are working at home.
  • You want to turn on and update all the computers
  • You can login to the main server, wake up all the desktops and they update.
• There are several requirements
  • You need to