Windows has many tools for diagnosing problems in TCP/IP networks (ping
, telnet
, pathping
, etc.). But not all of them allow you to conveniently check the status or scan opened network ports on a remote server. The Portqry.exe utility is a convenient tool to check the response of TCP/UDP ports on remote hosts to diagnose issues related to the operation of various network services and firewalls in TCP/IP networks. Most often, the Portqry utility is used as a more functional replacement for telnet
command, and unlike telnet, it also allows you to check open UDP ports.
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