Specifications
Table Of Contents
- About This Document
- Understanding Networking and IP Addressing
- Introduction to Networking
- Networking using IP
- Niagara Considerations
- Additional Information
- Configuration and Troubleshooting Tools
- Connecting on a LAN
- Connecting with Direct Dial
- Connecting to an ISP
- Using Security Technologies
- Configuration Files Used for Communication
- Glossary
- Index
Chapter 2 Configuration and Troubleshooting Tools
Connectivity Troubleshooting Utilities
Niagara Release 2.3
Niagara Networking & Connectivity Guide Revised: May 22, 2002
2–25
Figure 2-15 shows an example of an NSLookup about an external domain
(bbc.co.uk).
Figure 2-15 NSLookup to an external domain.
The following things can be noted about this example:
• The query was run using another name server (ns.uu.net or 137.39.1.3).
• The query was run specifying information about a domain, rather than a host.
Therefore, the name server replied with a list of the secondary-level name
servers that know about the bbc.co.uk domain.
netstat The netstat utility is a TCP/IP utility available on most operating systems,
including Windows. It is used to display protocol statistics and port usage of the local
host.
In the Niagara environment, it can be used to troubleshoot port-related issues.
Typical syntax for the
netstat command for a Windows-based host is:
netstat