Solution to Oracle 11g failure to configure listening

Oracle 11g cannot configure listening. This is rare, but I hope it can help my friends who have encountered this problem.

Problem: When Using Database Configuration Assistant to create an Oracle 11g Database, step 4 is to create Enterpeise Manager. First, you need to set up a listener. The problem is that when I set the listening port, the default port 1521 is occupied. However, when I change to any port, the port is still occupied.

Cause: it is installed on a laptop, including 1394, wireless network card, and wired network card. In addition, a virtual machine is installed to simulate two network connections: VMnet1 and vmnet8. To save computer resources, I have disabled three virtual machine services: VMware Agent Service, VMware Authorization Service, VMware DHCP Service, and VMware NAT Service. Oracle checks the network connection of virtual machines by default !!! The problem is obvious. These services are not enabled and the network connection cannot be found. Therefore, Oracle considers that the network cannot be set, so the port is incorrect.

Solution: When you set Enterpeise Manager for multiple NICs, we recommend that you disable other network connections and set an IP address for the network connection that is enabled. In this way, the listener can be created smoothly.