Questions tagged [mqtt]

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One computer cannot access port from another on the same same network

I have two servers with relatively fresh installs of CentOS 9 Stream on the same network. I can ping and ssh between them so can prove basic connectivity. serverA AFAIK has port 1883 (mqtt) open and ...
Geordie's user avatar
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How do I debug why my aws iot remote job is stuck in queued?

I have an aws IoT core MQTT broker that's working. I can connect to it and get message to various topics. But when I create a "remote job" https://docs.aws.amazon.com/iot/latest/...
Andrew Arrow's user avatar
1 vote
2 answers
848 views

Mosquitto not starting

I posted this on stack overflow however they reccomended I post it here, I recently installed the Mosquitto MQTT broker on Windows 11, and I managed to get it working locally between different command ...
Cillian O'Toole's user avatar
1 vote
0 answers
724 views

How to configure Nginx to proxy more than 200K MQTT connections?

I need to proxy a lot of MQTT connections (over 200K) and distribute them over a number of ports at the backend server. Below is my Nginx configuration. load_module /usr/lib/nginx/modules/...
Yehan Pemarathne's user avatar
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How do I configure bridges to re-connect if the other end disconnects?

I have three brokers: one central and two outliers. The central broker is set to persist messages and has bridge connections with QoS 2 to the two outlying brokers. However, I am finding that if one ...
Gareth's user avatar
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1 answer
271 views

cannot connect port 1883 on google cloud VM

I am trying to host a mqtt broker on google VM and open port 1883.The external IP address of VM is ephemeral. Can I know why the telnet to the IP of VM is failed? firewall config port 1883 telnet ...
Tim's user avatar
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2k views

Connection to mosquitto failed with error code 'error:1408F10B:SSL routines:ssl3_get_record:wrong version number'

I'm having problems configuring mosquitto with SSL. Everything works fine in clear text (1883) but when I do the SSL configuration and test it (8883), I get the following errors: mosquitto_pub --host ...
theirman's user avatar
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2 answers
1k views

Unable to connect to my self hosted cloud MQTT broker

I have followed the instructions to configure Mosquitto on CentOS 7, provided by digital ocean. I believe I have most of the stuff set up correctly, I was able to follow all the instructions with some ...
Ben's user avatar
  • 143
2 votes
1 answer
2k views

Mosquitto ACL default all users read to a topic

I am trying to create a default access for all users unless specified in the ACL file. I have allow_anonymous set to false. However, if a user is in the password file, I want that user to be able to ...
Blaine Sherman's user avatar
1 vote
1 answer
3k views

E: Unable to locate package mosquitto [closed]

I'm trying to install the mosquitto package, but when I type sudo apt-get install mosquitto it returns E: Unable to locate package mosquitto. I already ran sudo apt-get update and sudo apt-get upgrade....
Schneggl's user avatar
1 vote
1 answer
420 views

Linux server not allowing more than 2048 concurrent connections

I tried to do load test on MQTT from my MACOS, and was able to successfully achieve more than 12k connections till my bandwidth got exhausted. I tried to do the same test on GCP machine and it gave me ...
Dhruv Sehgal's user avatar
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1 answer
565 views

Connection and reception are slowed by FIN_WAIT

I am using mosquitto as a broker to exchange data between clients using the MQTT protocol. But recently I have the following phenomenon. My mosquitto sometimes connects very hard and sends it too. ...
Nguyen Ba Hien's user avatar
8 votes
2 answers
13k views

How to setup Mosquitto MQTT Broker in Kubernetes

I have been trying to set up ChirpStack in a Kubernetes space, but it doesn't seem to be working for me, and I can't find any resources online that have been the solution. **chirpstack-application-...
J M Smith's user avatar
2 votes
1 answer
438 views

Pod using Vernemq helm package cannot start

I'm using helm to install vernemq on my kubernetes cluster The problems is it can't start, I accepted the EULA Here is the log: 02:31:56.552 [error] CRASH REPORT Process <0.195.0> with 0 ...
Lê Minh Quân's user avatar
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1 answer
882 views

Treat TCP as MQTT protocol

I have packets captured during not encrypted MQTT communication: Protocol is detected as TCP. How to ask Wireshark to analyze packets as MQTT? UPD In case I set MQTT server work on default 1883 ...
vico's user avatar
  • 99
3 votes
1 answer
3k views

Running MQTT broker in Kubernetes (nginx-ingress-controller) with TCP over SSL

I'm currently trying to setup a MQTT broker (VerneMQ) on my kubernetes cluster (GKE). At the moment I'm using nginx-ingress-controller with a Google provided L4 load balancer. The VerneMQ deployment ...
hengel28's user avatar
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1 answer
341 views

Hostapd client unable to connect to docker container network

I've setup hostapd on a RP3 so I could connect some IoT devices to it. Inside the RP3 I have several docker containers, one of which is running a MQTT Broker. The MQTT Broker is running on a bridge ...
jtomasrl's user avatar
  • 101
1 vote
1 answer
3k views

haproxy acl with "header(host)" check is not working for mqtt backend

I am trying to apply HAProxy acl to choose mqtt broker backend is not working. I have tried following HAProxy configurations. Environment: HAProxy version: 1.8.19 MQTT Broker: EMQ X Broker version ...
Shaukat Mahmood Ahmad's user avatar
0 votes
1 answer
3k views

How to get haproxy and keepalived working on the same device as an emqx broker

I'm rather new to this, so please be patient. My setup is essentially thre devices using mqtt, connecting through two brokers both running emqx. Both emqx brokers are also supposed to be set up as ...
Brandon's user avatar
6 votes
1 answer
11k views

worker_connections are not enough - Nginx, docker

In my production server we have several upstreams which are docker containers running behind a reverse proxy with nginx. One of this containers is a mqtt broker (mosquitto) that we use to connect ...
raven's user avatar
  • 111
1 vote
0 answers
4k views

How can I use NGINX to reverse-proxy a MQTT service over SSL?

I've setup several server blocks for websites with NGINX. I can reverse-proxy (as well as force all traffic to https on these sites). I'm trying to setup a MQTT broker so that it uses SSL. server { ...
Mike Forman's user avatar
0 votes
0 answers
916 views

Fails to read certfile/keyfile when run as SYSTEMD

EDIT: I wrote a python script that starts mosquitto client with TLS options ON. All worked fine when I run it from command line (w/o sudo). Now it broke after re-installing some packages. However, I ...
Nazar's user avatar
  • 103
1 vote
1 answer
5k views

Google Cloud Platform and Nginx reverse proxy

I'm very new to this, so I apologize if I may not even get the terms right. What I'm trying to accomplish is a reverse proxy with Nginx where I listen to https (port 443) and MQTT (port 8883) and ...
Eradicatore's user avatar