The portqry command is a powerful tool used to query open ports on a network. It is a Windows command line utility that can be used to troubleshoot network connectivity issues. The portqry command is available in all versions of Windows, including Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP.
The portqry command is used to query open ports on a network. It can be used to determine if a port is open or closed, and to determine the status of a port. The portqry command can also be used to query the status of a port on a remote computer. This makes it a useful tool for troubleshooting network connectivity issues.
What is the Purpose of the Portqry Command?
The portqry command is used to query open ports on a network. It can be used to determine if a port is open or closed, and to determine the status of a port. The portqry command can also be used to query the status of a port on a remote computer. This makes it a useful tool for troubleshooting network connectivity issues.
The portqry command can be used to troubleshoot network connectivity issues. It can be used to determine if a port is open or closed, and to determine the status of a port. It can also be used to query the status of a port on a remote computer. This makes it a useful tool for troubleshooting network connectivity issues.
What is the Syntax of the Portqry Command?
The syntax of the portqry command is as follows:
- portqry -n
-p -e [-r] [-o] [-t] [-l] [-s] [-a] [-q]
The portqry command has the following options:
| Option | Description |
|---|---|
| -n | Specifies the name or IP address of the host to be queried. |
| -p | Specifies the protocol to be used for the query (TCP or UDP). |
| -e | Specifies the port number to be queried. |
| -r | Specifies the number of retries (default is 3). |
| -o | Specifies the timeout (in milliseconds) for each retry (default is 1000). |
| -t | Specifies the type of query (default is 0). |
| -l | Specifies the length of the query (default is 0). |
| -s | Specifies the source port for the query (default is 0). |
| -a | Specifies the source IP address for the query (default is 0.0.0.0). |
| -q | Specifies the query type (default is 0). |
What are Some Examples of Using the Portqry Command?
The portqry command can be used to query open ports on a network. Here are some examples of using the portqry command:
- To query the status of port 80 on a remote computer, use the following command: portqry -n
-p TCP -e 80 - To query the status of port 443 on a remote computer, use the following command: portqry -n
-p TCP -e 443 - To query the status of port 3389 on a remote computer, use the following command: portqry -n
-p TCP -e 3389 - To query the status of port 53 on a remote computer, use the following command: portqry -n
-p UDP -e 53
The portqry command is a powerful tool for troubleshooting network connectivity issues. It can be used to query open ports on a network, and to determine the status of a port on a remote computer. It is a useful tool for network administrators and IT professionals.