1. TA : Eng.Hala O. Abu Radi.

2. Nslookup Command SYNOPSIS nslookup [-option... ] [host-to-find | -[server ] ] DESCRIPTION Nslookup is a program to query Internet domain name servers. Nslookup has two modes: interactive and non-interactive.

3. non-interactive Non-interactive mode is used when the name or Internet address of the host to be looked up is given as the first argument.

4. Interactive mode Allows the user to query name servers for information about various hosts and domains or to print a list of hosts in a domain. ARGUMENTS Interactive mode is when no arguments are given (the default name server will be used )

5. Without arguments Interactive mode

6. INTERACTIVE COMMANDS : By default, nslookup queries for A records, but you can use the set type=Name command to change the query. to another resource record type

7. set type=MX The mail exchanger Default server The mail exchanger

8. server NAME command : From the information returned by this query, we select a server and use the server command to direct nslookup to use that server.

9. set domain=Domain command Next, using the set domain command, we set the default domain,nslookup uses this default domain name to expand the hostnames in its queries.

10. Query for information about the host We query for information about the host, by typing the name of the host on the prompt. I nformation such as the host CPU and operating system type. Also you can use the set type=HINFO for the same purpose.

11. Traceroute traceroute is a computer network tool used to determine the route taken by packets across an IP network. Also it is useful to gather some information about the target server.

13. Other tools: Other tools: Several good GUI-based traceroute tools are available. These tools draw a visual map that displays the path and destination: NeoTrace — A good GUI traceroute program that maps the path and destination.

14. www.iugaza.edu.ps