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256MB OpenVZ—what single service actually fits?

VPS Hosting by hankels 3 replies 110 views
#1

So I got this Hetzner 256MB OpenVZ box for €4/month and im staring at it like what do I even DO with it

Ran some numbers:

  • DNS resolver (unbound): ~15MB RAM
  • WireGuard: ~5MB + per peer
  • SQLite anything: ~10MB base
  • PostgreSQL: lol 80MB+ just to start

52 boxes in my spreadsheet and this ones the runt of the litter. DNS seems like the $/GB/RAM winner but feels wasteful for a whole VPS. WireGuard exit node maybe?

Whats your single-service champ for 256MB

seedbox, NAS, tape, and three offsite
#2

IMO unbound or knot resolver is the sweet spot here. YMMV but I've run unbound on 128MB without issues, take it with a grain of salt though.

WireGuard works too but you'll feel the 256MB if you push throughput. DNS is kinder to the node and your neighbors on the host.

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#3

Verify your restores

I tried running pihole+unbound on 256MB. Looked fine for 3 months. Then the host had a kernel panic and my backup was corrupted because I never tested it. Verify your restores weekly. That box is now a DNS node with rsync to a second provider — https://rsync.net

Slightly paranoid maybe but I've seen 256MB containers get killed by OOM with zero warning

1 #4

Hey folks, gentle reminder to keep things on topic

@Bob appreciate the caution but let's not turn every thread into backup gospel, yeah? Your DNS setup notes are solid though.

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