• 6 posts
  • 26 comments
Joined 11 months ago
Cake day: July 21st, 2025

Say ww3 kicks off and power goes off - how are you keeping your servers up? Solar panels and batteries?

What if there’s a biblical flood and you dont have the means to build an arc? All your servers are destroyed beyond repair?

What if you heard the Feds are coming to cart you and your servers away cos they suspect you of bad mouthing Emperor Tromp? (you’re on the run or subject to months of torture and yeah, you’re never getting your kit back)

What if theres a war and Luxembourg (you know, the enemy) let’s of an EMP pulse that kills your servers and all the infrastructure (power, internet…). How do you access all those cherished pics on Immich?

I’m not suggesting any of this will/can happen, its all just for lols, but have you made any contingency plans? Big binders full of printouts, bug-out bags, those flower-type solar things that track the sun, Faraday cages…

I’m wondering what folks do to optimise the power efficiency of their Linux servers. I’ve never really got to the bottom of what is the best way to do this and with the current energy crisis its a pertinent topic.

I’m talking about home servers, so the availability requirements are not the same as in a corporate environment. There might be vast chunks of time during the day or night when they sit idle, and home users are more tolerant of a lag when accessing resources if it means lower energy bills.

Specifically I’ve been thinking about:

  • allowing lower power states when idle
  • spinning-down hdd’s when they’re not in use
  • MAYBE letting machines sleep/hibernate
  • setting schedules of times where you know demand will be low/zero and efficiency can be managed aggressively
  • any other quick wins I’ve missed

It would be amazing if there was one tool or one guide that helps with all of that but thats never the case, is it 😅

Thoughts?

Looking for a simple card/cal/WebDAV server that runs in docker.

Have tried Davis, Radicale and Baikal but have either struggled to get them working or found them a bitch to maintain.

Doesn’t have to be a DAV type solution. Syncing/backing up contacts and calendars from an android phone is essential.

Think I’ve gone down the rabbit hole on this one.

I have more than one Debian machine that I host apps on. I want to serve them with https, so I decided it was best to centrally get the domain cert/key (I’ve used certwarden) and use a script/cron job on each server to get the certs. Then use caddy to reverse-proxy.

So, after some research I decided that certs should be placed in /etc/SSL/certs (keys in /etc/SSL/private). Problem is caddy can’t get to them. I’ve tried messing around with permissions etc but I suspect I’m running into issues because I’m not doing this the proper way.

What is the proper way of doing it? Or is there a much easier solution?