this post was submitted on 04 Dec 2025
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Options for remote Wake-on-lan. Or I guess wake on WAN. (lemmy.ml)
submitted 1 day ago by pineapple@lemmy.ml to c/selfhosted@lemmy.world
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So I want to setup a remote backup location at my parents house although they are very mindful about there electricity usage and environmental impact (and so am I) so I don't want to have to have a pc always on when it doesn't need to be.

Is it possible to setup remote Wake-on-lan so I can schedule my homelab at my place to wake up the server at my parents house and start a backup like once a week, I want to do this in a secure fashion as well so ideally no port forwarding, I currently use cloudflare tunnels for my home network.

Are there any other options or do you have a similar setup at your place?

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[–] JustEnoughDucks@feddit.nl 2 points 14 hours ago* (last edited 14 hours ago) (1 children)

You can even use an ESP32 or similar since it just has to perform 1 tiny function.

Getting an WT32-ETH01 knockoff dev board for 15€ or PoE for 25€ and uses <300mW with the wireless modem off. You could even just use a WiFi module for 8€ if you don't want something wired.

https://registry.platformio.org/libraries/a7md0/WakeOnLan

There is already an wakeonlan library to generate a packet very easily.

You can even do it in pseudocode with ESPHome if you have HomeAssistant

https://community.home-assistant.io/t/solved-wake-on-lan-packet-from-esp32-to-ha-server-how-to-automate/617595

Then VPN in, send a signal to the esp using one of various methods to tell it to send the packet.

[–] WhyJiffie@sh.itjust.works 1 points 13 hours ago (1 children)

Then VPN in, send a signal to the esp using one of various methods to tell it to send the packet.

this sounds like it requires another computer already turned on

[–] faercol@lemmy.blahaj.zone 1 points 12 hours ago (1 children)

Depends on your hardware. My routers can serve as a Wireguard serveur, so no need for a computer for that part

[–] WhyJiffie@sh.itjust.works 1 points 3 hours ago* (last edited 3 hours ago)

the only router firmware I have seen be able to do that is openwrt, and maybe mikrotik's. none of these are common though, but if you can do this then yes this is a pretty efficient solution