Fixing Gateway 502 Error

I have a home server that I'm setting up with pterodactyl and nginx proxy manager and I've successfully setup the host for nginx proxy manager but when I go to the domain for the panel that I've set up I get a gateway error and I don't know what the problem is can anyone help?

dielololOP•7/13/23, 8:34 PM

Anyone?

Ddielolol I have a home server that I'm setting up with pterodactyl and nginx proxy manage...

Chaika•7/13/23, 8:40 PM

Your nginx server is probably returning that if you're not using cloudflare tunnels. I would check your nginx logs first/make sure it can reach the backend you specified, I assume you're using it as a reverse proxy to pterodactyl?

CChaika Your nginx server is probably returning that if you're not using cloudflare tunn...

dielololOP•7/13/23, 8:48 PM

yes

dielololOP•7/13/23, 8:48 PM

so I can access the panel outside of my home network

dielololOP•7/13/23, 8:49 PM

Which logs should I check to make sure it reaches the backend?

dielololOP•7/13/23, 8:52 PM

2023/07/11 00:47:31 [emerg] 35678#35678: still could not bind()
2023/07/11 00:48:13 [emerg] 35834#35834: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:13 [emerg] 35834#35834: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:13 [emerg] 35834#35834: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:13 [emerg] 35834#35834: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:13 [emerg] 35834#35834: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:13 [emerg] 35834#35834: still could not bind()
2023/07/11 00:48:29 [emerg] 35891#35891: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:29 [emerg] 35891#35891: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:29 [emerg] 35891#35891: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:29 [emerg] 35891#35891: bind() to 0.0.0.0:80 failed (98: Unknown error)
2023/07/11 00:48:29 [emerg] 35891#35891: bind() to 0.0.0.0:80 failed (98: Unknown error)

This is error.log.1

Chaika•7/13/23, 8:52 PM

nginx error logs, I have no experience using nginx proxy manager, so no clue where the default location for them with that is

dielololOP•7/13/23, 8:52 PM

But I'm not sure if this was an error I had before or the same one

dielololOP•7/13/23, 8:52 PM

Sorry I mean or this one

Chaika•7/13/23, 8:53 PM

looks like something is already using port 80, or something else is wrong with your config/setup

dielololOP•7/13/23, 8:54 PM

Nginx Proxy manager uses port 80 so i dont think its that so Ill go over my config

Kasumi•7/13/23, 9:28 PM

I had the same error not by using pterodactyl and also not with the same errors but I fixed it by changing the host to 0.0.0.0

Kasumi•7/13/23, 9:29 PM

(Which couldnt be secure if theres no Content-Security-Policy or so

KKasumi I had the same error not by using pterodactyl and also not with the same errors ...

dielololOP•7/14/23, 9:29 AM

Wdym change the host to 0.0.0.0

Kasumi•7/14/23, 9:30 AM

nvmd im dumb lol

Kasumi•7/14/23, 9:30 AM

Just try another port

Kasumi•7/14/23, 9:30 AM

I just the 49152 Ports upwards

Kasumi•7/14/23, 9:30 AM

They are unassigned ports

Kasumi•7/14/23, 9:31 AM

You just have to proxy them two times.
one time with nginx and one time with cloudflare (if required)

KKasumi Just try another port

dielololOP•7/14/23, 10:01 AM

But isn’t nginx supposed to run on ports 80,81,443

Kasumi•7/14/23, 10:02 AM

Yes nginx is running on 80 and your server like http or node server is running on the 49152 port

Kasumi•7/14/23, 10:02 AM

It is a node web server right?

Kasumi•7/14/23, 10:06 AM

That's my configuration but idk if it would work with pterodactyl

KKasumi That's my configuration but idk if it would work with pterodactyl

dielololOP•7/16/23, 6:53 PM

hmm i have listen on 80

dielololOP•7/16/23, 6:53 PM

that may be the issue

KKasumi It is a node web server right?

dielololOP•7/16/23, 6:54 PM

It's a personal server that I bought and is in my house

Kasumi•7/16/23, 6:54 PM

If the pterodactly is listening on 80 and nginx also then yes

dielololOP•7/16/23, 6:55 PM

but nginx is supposed to be listening on 80

Ddielolol It's a personal server that I bought and is in my house

Kasumi•7/16/23, 6:55 PM

I dont really recommend it Panda_think

dielololOP•7/16/23, 6:55 PM

my thing uses https so shouldnt i use 443 instead of 80

Kasumi•7/16/23, 6:55 PM

Can make very much issues and cloudflare wouldnt help you then with their DDoS protection

KKasumi I dont really recommend it <:Panda_think:895298577872605184>

dielololOP•7/16/23, 6:55 PM

I already had it and before I only used it to host minecraft servers but now I want to set up a proxy and use it for other things

Ddielolol I already had it and before I only used it to host minecraft servers but now I w...

Kasumi•7/16/23, 6:56 PM

Ah okay if its just for private use then its okay

dielololOP•7/16/23, 6:56 PM

well#

dielololOP•7/16/23, 6:56 PM

its not really

dielololOP•7/16/23, 6:56 PM

but its not for large scale use

dielololOP•7/16/23, 6:57 PM

If I have the cloudflare proxy setup shouldn't it already be DDOS protected?

Ddielolol If I have the cloudflare proxy setup shouldn't it already be DDOS protected?

Kasumi•7/16/23, 6:58 PM

Even if the DDoS protection that Cloudflare issues wouldnt be usefull. Becaue if someone have access to your pterodactyl and uploads a "bot" or so with a code that sends him your private IP adress then you can say bye to your Internet Network

dielololOP•7/16/23, 6:58 PM

Ah I see

Kasumi•7/16/23, 6:59 PM

Yea, a (already termed) partned of mine had that issue and yea gx_heh

Kasumi•7/16/23, 6:59 PM

It was kinda funny to watch him x3

dielololOP•7/16/23, 7:00 PM

rip

dielololOP•7/16/23, 7:00 PM

still want to get the proxy working though

Kasumi•7/16/23, 7:00 PM

Yea. does it works now or not

dielololOP•7/16/23, 7:00 PM

i dont think that was the issue

dielololOP•7/16/23, 7:00 PM

theyre not listening on the same port

Kasumi•7/16/23, 7:00 PM

Linux server or windows?

dielololOP•7/16/23, 7:01 PM

KKasumi Linux server or windows?

dielololOP•7/16/23, 7:01 PM

Linux server

Kasumi•7/16/23, 7:01 PM

netstat -anpe | grep "80" | grep "LISTEN"

try this

Fixing Gateway 502 Error

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