TCP Port Check

Check if TCP ports are open, closed, or filtered on any host

TCP port scanning helps identify open services and potential security vulnerabilities on network hosts.

Port Scanner

Enter a hostname or IP address and configure scan options

What is TCP Port Scanning?

TCP port scanning is a network diagnostic technique used to determine whether specific TCP ports on a target host are open, closed, or filtered. This technology is crucial for network management, security auditing, and troubleshooting.

Main Uses:

Network Service Discovery: Identify network services running on target hosts
Security Auditing: Check for unnecessary open ports and assess security risks
Troubleshooting: Diagnose network connectivity issues and service availability
Firewall Testing: Verify that firewall rules are correctly configured
Compliance Checking: Ensure systems meet security policy requirements