: This is the standard utility for batch scripting and advanced command-line troubleshooting. It can be downloaded directly from the Official Microsoft Download Center .
—has earned the reputation of a "Swiss Army knife" for network troubleshooting. Unlike standard scanners that merely report if a port is "open" or "closed," PortQry can interpret application-layer responses to determine if a service is truly active or simply being filtered by a firewall. Core Capabilities and Functional Modes The utility operates in three distinct modes, offering versatility for different troubleshooting scenarios: Command-line Mode
Microsoft offers two primary versions of the tool: a command-line version (v2.0) and a version with a graphical user interface (PortQryUI).
If you use the Sysinternals Suite, PortQry may already be included, or you can run it directly from the web (if you have Sysinternals tools configured) by typing \\live.sysinternals.com\tools\portqry.exe in your run dialog, though downloading it locally is more reliable.
portqry -n servername -e 80 - Queries remote computer servername to check if it's listening on TCP port 80 (HTTP).
: This is the standard utility for batch scripting and advanced command-line troubleshooting. It can be downloaded directly from the Official Microsoft Download Center .
—has earned the reputation of a "Swiss Army knife" for network troubleshooting. Unlike standard scanners that merely report if a port is "open" or "closed," PortQry can interpret application-layer responses to determine if a service is truly active or simply being filtered by a firewall. Core Capabilities and Functional Modes The utility operates in three distinct modes, offering versatility for different troubleshooting scenarios: Command-line Mode
Microsoft offers two primary versions of the tool: a command-line version (v2.0) and a version with a graphical user interface (PortQryUI).
If you use the Sysinternals Suite, PortQry may already be included, or you can run it directly from the web (if you have Sysinternals tools configured) by typing \\live.sysinternals.com\tools\portqry.exe in your run dialog, though downloading it locally is more reliable.
portqry -n servername -e 80 - Queries remote computer servername to check if it's listening on TCP port 80 (HTTP).
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