I have installed mosquitto broker in a Ubuntu VM Instance of Google Cloud . I can also see the broker running on port 1883 of the VM . The external IP of the VM is 130.211.173.165 . Now when i try to create a client for this broker by the command
client.connect_async("130.211.173.165",1883,60)
I get an error message saying that the connection was actively refused by the remote IP .
I have also added a network firewall rule stating the below but nothing seems to work.
Source Ranges:
0.0.0.0/0
Allowed Protocols or Ports:
tcp:1883
Can someone help here ?
Related
I'm on Ubuntu 18, running the following version of Cloud Foundry ...
$ cf -v
cf version 7.4.0+e55633fed.2021-11-15
I would to set up several containers, running off Docker image. First is an Apache web server. I have the following Dockerfile
FROM httpd:2.4
COPY ./my-httpd.conf /usr/local/apache2/conf/httpd.conf
COPY ./my-vhosts.conf /usr/local/apache2/conf/extra/httpd-vhosts.conf
COPY ./directory /usr/local/apache2/htdocs/directory
How do I set this up in Cloud foundry? I tried creating a service but got these errors
$ cf cups apache-service -p "localhost, 80"
FAILED
No API endpoint set. Use 'cf login' or 'cf api' to target an endpoint.
When I tried to create this API endpoint I got
$ cf api "http://my_ip_address"
Setting API endpoint to http://my_ip_address...
Request error: Get "http://my_ip_address": dial tcp my_ip_address:80: connect: connection refused
TIP: If you are behind a firewall and require an HTTP proxy, verify the https_proxy environment variable is correctly set. Else, check your network connection.
I'm thinking I'm missing something rather substantial but don't know what the right questions to ask are.
The error message you are providing (dial tcp my_ip_address:80: connect: connection refused ) is related to the cf api $address not responding.
Ensure that your Cloud Foundry API Endpoint is still active and you don't have any firewall preventing you from accessing the API. (port is open, the process is running, and the firewall is allowing traffic from your IP if applicable)
I've recently tried making a forge 1.12.2 Minecraft server and I can't connect to it via my public IP. Localhost works but not public IP. I have port forwarded my server and also set inbound and outbound TCP/UDP rules for 25565(my mc port) on my firewall. How I setup my mc server:
Ran forge installer to install my mc server into a folder on my desktop
Ran the forge jar
Changed the eula to true
Ran the forge jar again
added my local IP to the server.properties file
added mods and made run.bat file to run with more ram
Set inbound and outbound rules for firewall for 25565 UDP and TCP
Port forwarded 25565
Ran server again
After that I still could not use my public IP to join my Minecraft server.
If someone could help that would be appreciated.
I think the problem might be that you set your local IP in the server.properties file. Try removing that value altogether, it's recommended to leave it empty, as stated here:
https://minecraft.gamepedia.com/Server.properties#server-ip
I have both a client and a broker running on a remote Linux machine within a Lora Network server that has a mosquitto connector.
The client can listen for the broker's broadcast from a certain address and port (#127.0.0.1:1883)
I would like to open an ssh tunnel between this remote machine and my machine (windows 10) to 'eavesdrop' on the communication between the client and the broker using MQTT.fx to run a mosquitto client;
So far I tried to:
Run ssh -L 22883:#remoteMachineAdress:1883 usern.ame#gatewayAdress -p222 on MobaXtrem](https://mobaxterm.mobatek.net/)
Then I launch a client on MQTT.fx to listen on the broker: 127.0.0.1 port 22883.
This establishes a connection to the broker. However, I am not receiving any of the messages passed to the original client (the one on the remote machine) receives.
Can anyone tell me what am I doing wrong?
And if there are any tutorials about this?
I appreciate all the help I can get, thank you in advance!
This configuration is correct, it was the connector on the server who was sending the data to a different application.
I have installed two broker of Mosquitto (1.4.2-3.2x86_64)and RabbitMQ (3.5.3-1) using newest version so far on CentOS 6 servers. With default configuration i can sub/pub messages for each broker separately, this mean that MQTT is running normally.
But when i bridge Mosquitto server to a RabbitMQ server, i face below problem right after i change mosquitto.conf file:
"Connecting bridge (Rabbit-IP)
Socket error on client client_name, disconnecting".
My bridge configuration in mosquitto.conf is:
connection test
address Rabbitmq-IP
topic # both 0 local/ remote/
Can you explain to me !
Thanks !
Try to use this option in your config file for the bridge
try_private false
This is an option that will tell the other broker that this is a bridge connection and defaults to true and if the RabbitMQ doesn't supports it, then it would not allow you to connect.
I am trying to connect to RabbitMQ with EasyNetQ.
RabbitMQ is on remote VM.
_rabbitBus = RabbitHutch.CreateBus(
string.Format("host={0};virtualhost={1}",
_hostSettings.Host, _hostSettings.VHost),
x => x.Register<IEasyNetQLogger>(l => _logger));
_rabbitBus.Subscribe<Message>(_topic, ReceiveMessage, m => m.WithTopic(_topic));
I get a TimeoutException The operation requested on PersistentChannel timed out..
Remote VM is replying to pings, ports 5672 and 15672 are opened (checked with nmap).
RabbitMQ management can be accessed from my host.
Also, if RabbitMQ is run on my local machine, it works fine.
I've tried connecting to RabbitMQ installed on my computer from other pc's in LAN, and it also works.
I've come to an assumption, that it's related to the fact it's on a virtual machine, and maybe there's something wrong in connection. But again, Rabbit's web management works fine.
Also tested on EasyNetQ Test application - works on localhost, but not on remote.
Output as following:
DEBUG: Trying to connect
ERROR: Failed to connect to Broker: '192.168.0.13', Port: 5672 VHost: '/'.
ExceptionMessage: 'None of the specified endpoints were reachable'
ERROR: Failed to connected to any Broker. Retrying in 5000 ms
EasyNetQ v0.28.4.242
As Mike suggested i had this and then checked the permissions. "guest" user can only connect via localhost (see RabbitMQ Access Control.) Try adding a user with permissions using the management interface and then connect as below
var _bus = RabbitHutch.CreateBus(string.Format("host={0};virtualhost={1};username={2};password={3}",
_hostSettings.Host, _hostSettings.VHost, _hostSettings.UserName, _hostSettings.Password));
Did you check your credentials. The default username and password is 'guest' and 'guest'. The error message is not very helpful. You get 'None of the specified endpoints were reachable' if there's an authentication error as well