### To configure the diagnostic service

1. Expand the Configuration node.

2. Select the Application Server instance.

3. Select Diagnostic Service.

4. Enable the following settings based on your requirements.

   - Compute Checksum: Collects checksum for selective Application Server binary files under `appserver_install_dir/ lib`, `appserver_install_dir/etc` and `appserver_install_dir/bin` directory

   - Verify Configuration: Captures configuration files such as, `domain.xml`, `server.policy`.

   - Capture Install Log: Installation specific details such as Application Server version number or patch ID and contents of log file generated at the time of installation. Absolute path for installation directory is used to determine which Installer log file is collected if there are multiple installations on the same machine. The contents of `config/asenv.conf` is copied from the installation folder for DAS as well as node agents.

     Installation specific details are collected only for file-based installations.

   - Capture System Information: Diagnostic Service collects following system information by default:

     - Network Settings.

     - OS details.

     - Hardware information.

     Data collected using native code is not available on Platform Edition of Application Server.

   - Capture Application Deployment Descriptor: Deployment descriptors such as `ejb-jar.xml`, `sun-ejb-jar.xml`, `web.xml`, `sun-web.xml`.

   - Log Level: Select the level of detail for the log report.

   - Log Entries: The number of log entries to be included in the generated diagnostic report.