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[SOLVED] Help with accessing stuff running on free Oracle VPS? (self.selfhosted)

submitted 1 year ago* (last edited 1 year ago) by Garthski to c/selfhosted

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Hi all,

Apologies if this isn't the correct place to ask, if not just point me in the right direction.

Hopefully someone can help me with this as i've been struggling for a while now. Previously i've been using the free Oracle VPS to proxy some services that are being ran from my local server to access them without tailscale but am now looking to host some stuff myself on it like FreshRSS.

I'm running Ubuntu 22.04.2 LTS (GNU/Linux 5.15.0-1037-oracle aarch64) on the VPS, Nginx Proxy Manager and using Cloudflare for domain stuff.

The issue is, whenever i try to access the URL of something set up on the VPS with the IP on NPM set to either the private IP, localhost, VPS tailscale IP or 127.0.0.1, i get a 502 error from cloudflare, however, if i set that same proxy host to the tailscale IP and port of something on my local server, it works fine, which suggests to me it's something LAN related on the VPS i need to sort but i just can't figure out what.

Anyone got any ideas?

EDIT: Turns out it was due to iptables on the VM. https://lemmy.world/comment/325214

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[–] [email protected] 3 points 1 year ago (2 children)

Oracle has 2 very strict firewalls. You have to open ports from the oracle Web interface (mandatory) and maybe also set rules on your VM.

[–] [email protected] 2 points 1 year ago

Yea, its sometimes annoying when you have to manage 2 firewalls (still to this day i find the Oracle interface too messy), but it makes it secure

[–] Garthski 1 points 1 year ago

That was it thank you! I seen that ufw was inactive and assumed there wasn't anything else on the VM but i dug deeper and seen i needed to allow it in iptables.