NSLookup

The main use of nslookup is to help with any DNS issues you may have. You can use it to find the IP address of a host, find the domain name of an IP address, or find mail servers on a domain. This tool can be used in an interactive and a noninteractive mode. In Lab 1.3, you'll use nslookup.

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LAB 1.3: NSLOOKUP

1. Open a command prompt or a terminal window.
2. To work in interactive mode, type nslookup at the prompt and press Enter. You will get an nslookup prompt, as you see in Figure 1.4. To escape the prompt, press Ctrl+C.

   

   Figure 1.4: Using nslookup

3. To work in noninteractive mode, type nslookup www.example.com at the prompt to acquire DNS information for the specific site such as Figure 1.5.

   

   Figure 1.5: Using nslookup on a URL

4. Now try nslookup with one of the IP addresses displayed in your terminal window attributed to www.wiley.com. This will do a reverse lookup for the IP address and resolve to a domain name.
5. To find specific type assets, you can use nslookup –...