Is 128MB RAM enough for OpenVPN?

factorvet · 2026-08-03T12:09:28+00:00

Have you tried checking if the question is about headroom or actual tested limits? [b]128MB sounds tight[/b] but OpenVPN itself can run in less. The real killer is TLS handshake bursts and concurrent...

VPS Hosting by factorvet 25d ago 13 replies 8.7K views

hosts895

Member

Joined:: Aug 2024
Posts:: 6

21d ago · edited

#11

Did anyone actually get wolfSSL running stable on 128MB or is that still theoretical

I ask because swapping handshake crypto to zram sounds like it just moves the latency bomb around

phasmapiotr

Member

Joined:: Jul 2024
Posts:: 27
From:: Krakow, Poland

17d ago · edited

#12

Actually

olya said:

WolfSSL instead of OpenSSL

is interesting, did anyone actually try that on 128MB and measure the difference? I just assumed the handshake overhead was similar enough not to matter. Might be worth a test if someone has a spare hour and a tiny box lying around.

Also curious if

tallinnying said:

Zram

Helped at all or just delayed the inevitable.

Emre10

Member

Joined:: Jul 2024
Posts:: 67
From:: Istanbul, Turkey

3d ago · edited

#13

Did anyone actually get this stable with wolfSSL on 128MB? I swapped out OpenSSL on a KnownHost tiny box last month and the handshake memory spike still pushed it over the edge with two clients

olya said:

Use wolfSSL instead of OpenSSL

Curious if the zram trick was the real saver there or if I just had bad luck with cipher negotiation

olya

Member

Always Free

Joined:: Jun 2024
Posts:: 159
From:: Warsaw, PL

2d ago · edited

#14

I'm still thinking about that CloudCone box. Did anyone actually get wolfSSL running in production or was it all just theorycrafting? Curious because the compile time alone on 128MB is its own special hell.

licensing is a suggestion

Post a reply

You need an account to reply. Log in or register to join the conversation.

Post reply Preview Save draft