1. Update Ubuntu package list
```
sudo apt-get update
```
2. Install Java runtime environment
```
sudo apt-get install openjdk-8-jdk
```
3. Import Jenkins GPG key
```
wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -
```
4. Add Jenkins package repository
```
sudo sh -c ' echo deb https://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
```
5. Update Ubuntu package list
```
sudo apt-get update
```
6. Install Jenkins
```
sudo apt-get install jenkins
```
7. Start Jenkins service
```
sudo systemctl start jenkins
```
8. Check the Jenkins service status```
sudo
systemctl status jenkins
```
9. Access the Jenkins management interface through a browser: http://<your server IP or domain name>:8080/
10. Follow the prompts to complete Jenkins Initial setup, including creating an administrator account and installing recommended plugins.
11. Perform necessary configurations, such as configuring the mail server, etc.
```
Note: If there is a firewall on the server, access to port 8080 needs to be opened.
```
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For more details, please visit Lan Yiyun's official website: www.tsyvps.com
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