Oracle Database 18c: Creating the Virtual Network (Virtual Cloud Network)

In the Virtual Cloud Network tab click on the “Create Virtual Cloud Network” button:

In the Virtual Cloud Networks tab click on the “Create Virtual Cloud Network” button:

You will then be presented with the screen to create the Virtual Cloud Network, where it is necessary to specify all the information for the VNC configuration:

In the Virtual Cloud Network tab choose the option “Create Virtual Cloud Network plus related resources” to create the VNC only with public subnets:

Click the “Create Virtual Cloud Network” button and a screen with the confirmation of the creation will be displayed:

Thus it will be possible to verify the VCN created:

Click the name of the VCN, in this case we will use this article as an example “VirtualCloud”.

Then click on “Security Lists” in the menu:

Click "Default Security Lists for VirtualCloud"

On the next screen click on “Edit All Rules”:

Later, under the "Ingress Rule 3" tab, click the "Another Ingress Rule:

In the next Ingress Rule add the following data:
 Source CIDR: 0.0.0.0/0
     Destination Port Range: 3055 (only one example of free port)

After entering the information click on "Save Security List Rules"

After this step we have finished the configuration of the VCN: