Here are the steps:
- Open Zenmap from the list of programs.
- Enter the target to be scanned in the text field provided, as shown here:
- Select Quick scan from the Profile drop-down list, as shown here:
- This will perform a fast scan with the –F option, thereby giving results for the top 100 ports along with a detailed analysis in different tabs, as shown in the following screenshot:
The Ports/Hosts tab shows the various open ports ...