this post was submitted on 26 Apr 2026
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Migrating from DigitalOcean to Hetzner: From $1,432 to $233/month With Zero Downtime (isayeter.com)
submitted 13 hours ago by lemmydividebyzero@reddthat.com to c/technology@lemmy.world
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[–] greybeard@feddit.online 9 points 6 hours ago (2 children)

A trick I realized a few years ago: Caddy has a module you can build it with that does WOL. So I was able to run a Caddy reverse proxy that woke up my higher powered server on demand, and let it go back to sleep when I wasn't using it. Might be a bad idea for a database sever, but for my uses it was pretty simple and effective.

[–] W98BSoD@lemmy.dbzer0.com 1 points 44 minutes ago

… that woke up my higher powered server on demand, and let it go back to sleep when I wasn't using it.

Get a load of this guy not using his high powered server 24/7/365.

[–] wltr@discuss.tchncs.de 1 points 57 minutes ago (1 children)

Oh wow, that’s really cool! I do use Caddy too.

Is it that your service/website is on both (low powered server and high powered one) or is it only on the high powered? So, it’s like

  • the lower powered server knows it needs help (sounds a bit surreal to me, but perhaps it’s doable)
  • or the lower powered server does not serve anything, but wakes up the high powered when the thing is accessed?

I guess that’s the 2nd thing, but it’s very cool indeed! That way you can really have very convenient things for free, as it’s super cheap to run any hardware for a very while on demand. I don’t mind waiting a minute or even two when I need to access something very infrequently and don’t want to run my server 24/7. I do exactly that, but I wake up it via LAN manually.

[–] greybeard@feddit.online 1 points 32 minutes ago

The low powered server is the Caddy server, all it does us act as a reverse proxy for everything in my house, giving it an SSL cert and doing things like WOL. The caddy config basically just says "Here's your reverse proxy target, if you don't get a response within one second, send a WOL packet, wait a couple of seconds, then try again".

The only requirement is for you to do a custom build of caddy (this is done with a dockerfile), and to have WOL enabled on the high power server.

It means the first web request for services on the high power server might take a few seconds, but everything after that is smooth.