🐱 What is Apache Tomcat? A Quick Guide for Java Web Hosting

Apache Tomcat is a lightweight, open-source Java application server used to deploy Java-based web applications like JSPs and Servlets. It supports WAR (Web Application Archive) deployment, includes a built-in HTTP server, and runs efficiently on Linux-based environments.

📁 Common Tomcat Paths and Configuration

• Installation Directory (CATALINA_HOME / CATALINA_BASE):
  /usr/local/jakarta/tomcat
• Java Path (JAVA_HOME):
  /usr/local/jdk
• Main Log File:
  /usr/local/jakarta/tomcat/logs/catalina.out
• Configuration Files:
  Stored in /usr/local/jakarta/tomcat/conf/ (mostly XML files)

⚙️ WAR Deployment on cPanel Servers

To deploy a .war file in a cPanel environment:

1. Place the .war file inside the user’s public_html folder.
2. Add a JkMount directive to map app routes via mod_jk.
3. Restart Apache for changes to apply.

Example JkMount config:

<IfModule Mod_jk.c>

JKMount /*.jsp ajp13

JKMount /appname/* ajp13

</IfModule>

Tomcat scans for new WAR files every 10 seconds and deploys them automatically unless disabled.

🔧 Tools and Logs

• Monitor deployment via:
  tail -f /usr/local/jakarta/tomcat/logs/catalina.out
• Deployment directory:
  /usr/local/jakarta/tomcat/work/Catalina/yourdomain.com/

🔗 Resources

• Apache Tomcat Official Site
• Java JDK Downloads
• Tomcat Configuration Tips