Before you start make sure that your environment meets the following Prerequisites:
- Installing Oracle WebLogic Server
- Creating a Domain
- Configuring Managed Servers for Oracle WebLogic Server
- Managing Machines by Using the Administration Console
i) Start Node Manager using command prompt
C:\Oracle\Middleware\wlserver_12.1\server\bin>startNodeManager.cmd localhost 5556
ii) Navigate to Domain Structure in Oracle Weblogic Server 12c console and click Servers. And then click on control tab in the right pane i.e Summary of Servers.
iii) Select managed server need to start and click on start tab.
iv) A request has been sent to the node manager to start the server. See Snap below