Zookeeper security configuration guide on CentOS
Apr 14, 2025 pm 06:24 PMDetailed explanation of the installation and configuration of Apache ZooKeeper under CentOS system
This article introduces in detail how to configure Apache ZooKeeper on CentOS system, covering Java environment installation, ZooKeeper download and decompression, configuration, booting and security configuration.
1. Preparation
-
Installing Java environment: ZooKeeper relies on the Java Runtime Environment (JRE) or Java Development Kit (JDK). It is recommended to install OpenJDK 8 or higher:
sudo yum install java-1.8.0-openjdk-devel
-
Download and unzip ZooKeeper: Download the required version, such as zookeeper-3.4.14 from the Apache ZooKeeper official website, and unzip it to the specified directory (such as
/usr/local/
):wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz tar -zxvf zookeeper-3.4.14.tar.gz -C /usr/local/
2. ZooKeeper configuration
-
Modify the configuration file: Enter the unzipped ZooKeeper directory, copy and modify
zoo_sample.cfg
tozoo.cfg
. Key configuration items includedataDir
(data directory),clientPort
(client connection port), etc.cd /usr/local/zookeeper cp conf/zoo_sample.cfg conf/zoo.cfg vi conf/zoo.cfg
Sample configuration:
<code>tickTime=2000 dataDir=/var/lib/zookeeper clientPort=2181 server.1=192.168.0.11:2888:3888 server.2=192.168.0.12:2888:3888 server.3=192.168.0.13:2888:3888</code>
Cluster node configuration: If you configure the cluster, you need to set
server.N
attribute, N is the node number.-
Create
myid
file: Create amyid
file for each node indataDir
directory, and the file content is the node number (for example, the content ofmyid
file of node 1 is1
).cd /var/lib/zookeeper vi myid # Execute on each node, the myid content is numbered to the node
3. Set up the startup
Create and edit the zookeeper.service
file to realize the startup of the ZooKeeper service:
[Unit] Description=ZooKeeper Service After=network.target [Service] Type=forking ExecStart=/usr/local/zookeeper/bin/zkServer.sh start ExecStop=/usr/local/zookeeper/bin/zkServer.sh stop PrivateTmp=true Environment=JAVA_HOME=/usr/local/java/jdk1.8.0_202 # Please replace it with your JAVA_HOME path User=zookeeper # It is recommended to use dedicated user Group=zookeeper # It is recommended to use dedicated user group PIDFile=/var/run/zookeeper/zookeeper.pid Restart=always [Install] WantedBy=multi-user.target
Copy the file to the /etc/systemd/system/
directory and execute the following command:
sudo systemctl enable zookeeper.service sudo systemctl start zookeeper.service sudo systemctl status zookeeper.service
4. Startup and Verification
Start ZooKeeper with the following command and check the status:
/usr/local/zookeeper/bin/zkServer.sh start /usr/local/zookeeper/bin/zkServer.sh status
5. Safety enhanced configuration (production environment recommendation)
- SASL authentication: Configure ZooKeeper to use SASL for authentication to enhance security.
- ACL Access Control: Configure an access control list (ACL) to limit access to specific nodes.
- SSL/TLS encryption: Use SSL/TLS to encrypt communication between the client and the server.
- Limit client connections: Avoid resource exhaustion and performance degradation.
- Monitoring and Auditing: Implement monitoring and auditing policies to track access and operations of ZooKeeper resources.
Note: The above steps and configurations are for reference only. In the production environment, it is necessary to adjust and optimize according to actual needs, such as setting of user permissions and more detailed security policy configuration. Please make sure the /var/lib/zookeeper
directory exists and the ZooKeeper user has the corresponding permissions. Please modify the JAVA_HOME path according to the actual installation situation. It is recommended to use dedicated users and user groups to run the ZooKeeper service to improve security.
The above is the detailed content of Zookeeper security configuration guide on CentOS. For more information, please follow other related articles on the PHP Chinese website!

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