Free and powerful TCP port scanning tool to scan your firewall and other computer devices for open ports.
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A port scanner is a software application or online tool designed to probe a network host for open ports. This is often used by administrators to verify security policies of their networks and by attackers to identify running services on a host with the view to compromise it.
Related Tools:Blacklist Lookup|Proxy Detector|MX/NS/SOA Record Lookup
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