Weird ERR_CONNECTION_RESET when trying to connect to VPS
reddit / selfhosted

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ImpressionableCanary · 2023-12-28 03:33

Hi all

I'm facing a really strange series of connection errors. For context,
I run some VPS droplets on Digitalocean, and was trying to set up a
new droplet for personal use. But for some reason, as soon as I
attempt to set up any kind of reverse proxy (traefik, Nginx reverse
proxy, Yunohost redirects), I get an ERR\_CONNECTION\_RESET when
trying to access (via web browser) any of the subdomains I've tried to
set up. Not only that, but visiting the IP address and port directly
via a web browser also gives me an ERR\_CONNECTION\_RESET when
previously I was still able to access any dashboard I had running.

This is what I've tried and they did not work:

* Use another computer on the same network. I've tried computers with
Windows 10, 11, MacOS. All fresh installs with nothing else installed.
All faced the same ERR\_CONNECTION\_RESET.
* Used other browsers, Chrome, Firefox, Safari, across different
computers on the same network. All faced the same
ERR\_CONNECTION\_RESET.
* Cleared my cache and browser histories. Same ERR\_CONNECTION\_RESET.
* Restarted the VPS. Same ERR\_CONNECTION\_RESET.
* Restored the VPS to before I attempted any reverse proxy. Same
ERR\_CONNECTION\_RESET.
* Deleted the VPS, set up a new one with the same Debian 11 distro.
Tried another reverse proxy. Same ERR\_CONNECTION\_RESET after trying
to set up one reverse proxy.
* Deleted the VPS, set up a new one with a different Ubuntu distro.
Tried another reverse proxy. Same ERR\_CONNECTION\_RESET after trying
to set up one reverse proxy.

​

What I did that did not result in an error:

* Attempt access on my mobile (latest iOS), using the same network.
Works perfectly. But obviously you wouldn't manage a VPS over iOS.
* SSH and pinging the VPS still works normally.
* Use a VPN and access the VPS via a web browser. That somehow works.
But turning off the VPN results in the same ERR\_CONNECTION\_RESET.

​

I've checked the logs, but there was no indication of any attempt or
failure to access the VPS. Only the successful connections and failed
password attempts show up. Does anyone have a clue as to what might be
going on?

​

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GrumpyCat79 · 2023-12-28 08:34

> Not only that, but visiting the IP address and port directly via a
web browser also gives me an ERR_CONNECTION_RESET

If you use HTTPS and specify a port (or host a HTTPS server on port
80) but don't have https:// in front of the URL, it may give that
error