network-pentest

Use the port_scanner.py script, which performs concurrent TCP connections across a port range and grabs service banners from responding ports. Provide the target host and port range to identify exposed services.

The service_enum.py script sends an SMB protocol negotiation to probe shares on port 445 and attempts DNS zone transfers using dnspython's xfr query. Both functions return lists of findings or error messages.

Yes, DNS zone transfer requires the dnspython package installed via pip install dnspython. Without it, the function returns a message indicating dnspython is not installed, while SMB enumeration works with the standard library.

Zone transfers fail when the DNS server restricts AXFR requests to authorized secondary servers, which is the common secure configuration. A successful transfer indicates a misconfiguration worth reporting in an assessment.

Only run these scripts against systems you own or have explicit written authorization to test. Unauthorized port scanning and service enumeration may violate laws and organizational policies.