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How to set up the Network Scan OpenVAS port range?

Like all tools, OpenVAS can be run either from the /targets page or directly from the tool page. For more details on starting a scan, you can read our article on how to start a scan.

Scanning from the tool page will have all the scan options displayed by default. When scanning from the /tools page, you need to click show in order to display the scan options:

Network scan OpenVAS advanced scan options with

We have configured OpenVAS to scan for a default list of ports containing the most common ports (TCP and UDP). You have the options of selecting :

  • Common list of ports, either OpenVAS default or the TCP or UDP Default – Top 10, 100, 1000, 5000 ports (see here which ones)
  • Specify the Range of ports you want to test
  • Provide a List of ports
Open Ports Detection for OpenVAS tool in platform

Please note that the scanner first attempts to detect if the host is alive or not before doing the port scan. If the host is not alive (ex. does not respond to ICMP requests) it will show zero open ports found.

Note: If the scanner does not find any open ports even though you know there are, we recommend you re-running the scan with the option “Check if host is alive” disabled. This will skip host discovery and just start the port scan.

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