High Quality — How To Use Portqry

| Result | Meaning | |--------|---------| | | A service is bound to the port and responded. | | FILTERED | No response received (firewall drop, host down, or no service). | | NOT LISTENING | Reached the host, but no service on that port (RST received). | Pro tip: FILTERED does not always mean a firewall—the service may be stopped or the IP unreachable. Advanced: Query Well-Known Services PortQry can query specific service endpoints like LDAP, NetBIOS, or SQL Server using the -o flag with known service names:

Use telnet for a quick yes/no. Use PortQry when you need the full story. Have a tricky connectivity issue? Let us know in the comments how PortQry helped you solve it. how to use portqry

When a service won’t connect, the first question is often: “Is the port even open?” While tools like telnet and Test-NetConnection work, PortQry offers a more detailed, faster, and scriptable alternative—especially for Windows administrators. | Result | Meaning | |--------|---------| | |

HTTP response: 200 OK portqry -n server01 -p tcp -e 3389 3. Scan a Range of Ports portqry -n 10.0.0.25 -p tcp -r 20..25 Output: | Pro tip: FILTERED does not always mean