PortQry
Directly query critical services on the remote host to determine whether it is available and accessible. You can use two troubleshooting tools to query services on a remote host: PortQry (Portqry.exe) and Telnet Client. PortQry is more flexible and simpler to use than Telnet Client; however, because it is not included with Windows (but can be downloaded from the Microsoft Web site), it might not be installed on all systems. Use Telnet Client to query remote services only when PortQry is not available.
PortQry version 1.22 is a TCP/IP connectivity testing utility that is included with the Windows Server 2003 Support Tools. For information on how to download these tools, see http://support.microsoft.com/kb/892777. PortqryV2.exe is a new version of PortQry that includes all the features and functionality of the earlier version and has new features and functionality. For information concerning PortqryV2.exe and how to download it, see http://support.microsoft.com/kb/832919. The following examples can be performed using either version.
Note Information concerning PortQryUI, a user Interface for the original Portqry.exe command-line port scanner, can be found at http://support.microsoft.com/kb/310099, which includes a link for downloading this tool.
In this tutorial:
- Troubleshooting Network Issues
- Tools for Troubleshooting
- Table-1 Network Troubleshooting Tools
- Arp
- How to Identify a Problem with the ARP Cacher
- How to Clear the ARP Cache
- Event Viewer
- IPConfig
- Nblookup
- Nbtstat
- Net
- How to View Shared Folders on the Local Computer
- How to View Shared Folders on Another Computer
- Netstat
- Network Monitor
- Nslookup
- Verifying that the Default DNS Server Resolves Correctly
- Verifying that a Specific DNS Server Resolves Correctly
- Verifying Specific Types of Addresses
- Using TCP for DNS Lookups
- PathPing
- PathPing Output
- Routing Loops
- Performance Problems
- Possible Connectivity Issues
- No Connectivity Issues
- Performance Monitor
- Data Collector Sets
- Windows Resource Monitor
- Ping
- PortQry
- Identifying the TCP Port for a Service
- Windows 7 Testing Service Connectivity
- Determining Available Remote Management Protocols
- Why PortQry Is Great
- Route
- Task Manager
- TCPView
- Telnet Client
- Testing Service Connectivity
- Test TCP
- Windows Network Diagnostics
- The Process of Troubleshooting Network Problems
- How to Troubleshoot Network Connectivity Problems
- How to Troubleshoot Application Connectivity Problems
- Default Port Assignments for Common Services and Tasks
- How to Troubleshoot Name Resolution Problems
- How to Verify Connectivity to a DNS Server
- How to Use the Hosts File
- How to Troubleshoot Performance Problems and Intermittent Connectivity Issues
- How to Troubleshoot Joining or Logging on to a Domain
- How to Verify Requirements for Joining a Domain
- How to Troubleshoot Network Discovery
- How to Troubleshoot File and Printer Sharing
- How to Troubleshoot File and Printer Sharing from the Client
- How to Troubleshoot File and Printer Sharing from the Server
- How to Troubleshoot Wireless Networks
- Network Diagnostics
- How to Troubleshoot Firewall Problems