# 15. Runtime Application Management
# 15.1.1 Discover the Device
Go to the Application Management page and select the following two methods:
- Enter the device address and service port number manually, for example: 127.0.0.1:5678.
- Network devices: to obtain the device address by scanning LAN devices.
# 15.1.2 Connect the Device
Fill in the device address, enter the username and password of the service, and click Connect. After the connection is successful, the installer will be automatically assigned according to the system information, Ubuntu 20.04 uses dpkg installer, centos7 uses rpm installer.
# 15.1.3 Manage the Installation, Upgrade, and Deletion of the Application
The application list information includes the program name, version number, platform, source address of the installation package, installer (dpkg, rpm), installation status (installed, uninstalled), and operation (install, uninstall).
After the device is successfully connected, the application list is updated to only support the current device platform, click the operation bar on the right side of the list to install and uninstall, and the relevant download progress, installation progress, and operation process will be displayed in the log window below.
