Apache ActiveMQ is a free, open source messaging and integration pattern server which is widely used in enterprise software development.
In this tutorial, I will explain how to install the binary distribution of Apache ActiveMQ on CentOS 7.
A fresh Vultr CentOS 7 server instance with the server IP
A sudo user.
Java 7 or greater.
Log into your server as a sudo user from an SSH terminal, and then install all available updates using the EPEL YUM repo:
sudo yum install epel-release -y sudo yum update -y sudo shutdown -r now
After the system reboot, log back in as the same sudo user.
Apache ActiveMQ 5.x requires Java 7 or greater. Here, we'll install OpenJDK 8 JRE using YUM:
sudo yum install -y java-1.8.0-openjdk
Then, use the following command to verify the installation result:
The output should resemble:
openjdk version "1.8.0_111" OpenJDK Runtime Environment (build 1.8.0_111-b15) OpenJDK 64-Bit Server VM (build 25.111-b15, mixed mode)
JAVA_HOME environment variable:
echo "JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:bin/java::")" | sudo tee -a /etc/profile source /etc/profile
You can always get the latest stable release of Apache ActiveMQ from its official release page. At the time of writing this article, the latest release is 5.14.3.
cd wget https://archive.apache.org/dist/activemq/5.14.3/apache-activemq-5.14.3-bin.tar.gz sudo tar -zxvf apache-activemq-5.14.3-bin.tar.gz -C /opt
For your convenience, you can create a version-independent soft link pointing to the directory in which current release of Apache ActiveMQ resides. This practice is helpful for future updates.
sudo ln -s /opt/apache-activemq-5.14.3 /opt/activemq
You can launch Apache ActiveMQ by running its executable file as shown in the following example.
cd /opt/activemq sudo ./bin/activemq start
However, you may prefer to run ActiveMQ through a Systemd unit file. Create the unit file.
sudo vi /usr/lib/systemd/system/activemq.service
Populate the file with:
[Unit] Description=activemq message queue After=network.target [Service] PIDFile=/opt/activemq/data/activemq.pid ExecStart=/opt/activemq/bin/activemq start ExecStop=/opt/activemq/bin/activemq stop User=root Group=root [Install] WantedBy=multi-user.target
Save and quit:
With the unit file in place, you can use Systemd to easily start or stop Apache ActiveMQ.
sudo systemctl enable activemq.service sudo systemctl start activemq.service sudo systemctl stop activemq.service
When Apache ActiveMQ is running, you can access its web console using your web browser.
Start Apache ActiveMQ:
sudo systemctl start activemq.service
Modify firewall rules in order to allow access to port 8161:
sudo firewall-cmd --zone=public --permanent --add-port=8161/tcp sudo firewall-cmd --reload
Now, point your web browser to
http://203.0.113.1:8161/admin and log in using the default credentials.
The username and password can be configured in the
Apache ActiveMQ is configured and ready for use. Thanks for reading.