Mosquitto: Websocket connection not working for v1.5.4

[satsdeva]

Mqtt Configuration:
port 1883
protocol mqtt

listener 9001 0.0.0.0
protocol websockets

log_type all
websockets_log_level 255

---

Error in cmd:
C:\Program Files (x86)\mosquitto>mosquitto.exe -v -c mosquitto.conf
1542703760: mosquitto version 1.5.4 starting
1542703760: Config loaded from mosquitto.conf.
1542703760: Opening websockets listen socket on port 9001.
1542703760: libuv support not compiled in
1542703760: Creating Vhost 'default' port 9001, 3 protocols, IPv6 on
1542703760: Using non-SSL mode
1542703760: WSAAddressToString() : 10022
1542703760: ERROR on binding fd 296 to port 9001 (-1 10048)
1542703760: init server failed
1542703760: Failed to create default vhost
1542703760: Error: Unable to create websockets listener on port 9001.

OS: Windows server 2016

[ralight]

Could you please try

listener 9001

instead of

listener 9001 0.0.0.0

It should bind to all interfaces by default.

[satsdeva]

@ralight : I'm getting Same error after changing to "listener 9001"

[ralight]

Error 10048 is WSAEADDRINUSE, are there any other programs already listening on port 9001?

[satsdeva]

No other application running on 9001 port. Even i changed the port number , it was showing same error.

[satsdeva]

netstat command for 9001.

netstat -ano|findstr 9001
TCP [::]:9001 [::]:0 LISTENING 3204

Listen only ipv6

[ralight]

Aha! Good find. I think that essentially puts it on the same standing as #1004.

[satsdeva]

@ralight when i can expect the 1.5.5

[ralight]

1.5.5 will be released in one week.

I believe this should work on the upcoming 1.5.5 if you use:

socket_domain ipv4

in your config file.

[jeffsf]

This is still a problem with mosquitto 1.5.8, where socket_domain ipv4 is required for all listeners.

[kbiesbrock]

Something that had previously worked for me:

listener 9001
protocol websockets

listener 1883 localhost

But now resulted in the aforementioned error:

Error: Unable to create websockets listener on port 9001.

Removing localhost fixed this issue and this thread lead me to that discovery. Thank you smart folks!