Every VerneMQ node has to be configured as the default configuration probably does not match your needs. Depending on the installation method and chosen platform the configuration file vernemq.conf resides at different locations. If VerneMQ was installed through a Linux package the default location for the configuration file is /etc/vernemq/vernemq.conf.

General Format of the vernemq.conf file

• A single setting is handled on one line.

• Lines are structured Key = Value

• Any line starting with # is a comment, and will be ignored.

Minimal Quickstart Configuration

You certainly want to try out VerneMQ right away. To just check the broker without configured authentication for now, you can allow anonymous access:

• Set allow_anonymous = on

By default the vmq_acl authorization plugin is enabled and configured to allow publishing and subscribing to any topic (basically allowing everything), check the section on file-based authorization for more information.

Install VerneMQ

Once you have downloaded the binary package, execute the following command to install VerneMQ:

sudo dpkg -i vernemq-<VERSION>.bionic.x86_64.deb

Note: Replace bionic with appropriate OS version such as focal/trusty/xenial.

Verify your installation

You can verify that VerneMQ is successfully installed by running:

dpkg -s vernemq | grep Status

If VerneMQ has been installed successfully Status: install ok installed is returned.

Activate VerneMQ node

Once you've installed VerneMQ, start it on your node:

service vernemq start

Default Directories and Paths

The whereis vernemq command will give you a couple of directories:

whereis vernemq
vernemq: /usr/sbin/vernemq /usr/lib/vernemq /etc/vernemq /usr/share/vernemq

Next Steps

Now that you've installed VerneMQ, check out How to configure VerneMQ.