Nodebb not accessible from LAN

[Chong]

I've deployed two nodebb instances. One on default port 4567, the other on 12001.
The first site works well and is accessible from LAN, while the other doesn't. I expect that the problem to be due to the listening port.

$ sudo lsof -i :12001
COMMAND   PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
nodejs  25188 cvda   16u  IPv4 1217747      0t0  TCP localhost:12001 (LISTEN)

$ sudo lsof -i :4567

COMMAND   PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
nodejs  27547 cvda   15u  IPv4 1241539      0t0  TCP *:4567 (LISTEN)

As you can see, the 12001 is listening to localhost:12001 while 4567 is listening *:4567. Maybe this is the problem.

Here I paste my config.json.

The 12001 copy

{
	"base_url": "http://162.105.**.**",
	"port": "12001",
	"secret": "byc9989",
	"bind_address": "0.0.0.0",
	"database": "redis",
	"redis": {
		"host": "127.0.0.1",
		"port": "6379",
		"password": "",
		"database": "1"
	},
	"bcrypt_rounds": 12,
	"upload_path": "/public/uploads",
	"use_port": true,
	"relative_path": ""
}

The 4567 copy

{
	"base_url": "http://162.105.**.**",
	"port": "4567",
	"secret": "byc9989",
	"bind_address": "0.0.0.0",
	"database": "redis",
	"redis": {
		"host": "127.0.0.1",
		"port": "6379",
		"password": "",
		"database": "0"
	},
	"bcrypt_rounds": 12,
	"upload_path": "/public/uploads",
	"use_port": true,
	"relative_path": ""
}

As you can see, the visible part is almost the same. I'm much confused on this. Please get me some hints. Thanks.

(Sorry I have to black out my IP)

[frissdiegurke]

If you're trying to access it from LAN with the global (router) IP you may get in trouble if the port isn't open within router config or gets catches from any other firewall.

[Chong]

@frissdiegurke I don't think the problem is with the router since the process is actually listening to
localhost:12001
instead of
*:12001.
Am I right on this?

[julian]

@Chong Not sure if this i related to NodeBB, but it does look like the 12001 NodeBB is bound only to the localhost interface...

[Chong]

@julian Right. That's also my guess. The problem is the same config.json resulted in different server behavior. Any suggestion that I can make nodebb listen to *:12001?
Thx.

[Chong]

@Chong Hey I got it solved.

I changed the port to 4568 instead of 12001 and everything works well. It seems Ubuntu deals with these ports differently.