Exam 1: What do the following commands do and how are they useful?

Question

1. Net user
2. Systeminfo
3. Ipconfig
4. Ipconfig /all
5. Nslookup
6. Netstat
7. Ping
8. Tracert

Answer 1

1. Net user - Displays detailed information of the supplied username (security groups, domains, account status)
2. Systeminfo - Displays hardware information of the current system
3. Ipconfig - Displays basic IP information
4. Ipconfig /all - Displays basic IP information and DNS information/servers
5. Nslookup - Find DNS server and fully qualified domain name (FQDN) and IP address associated
6. Netstat - Provides information and statistics about protocols in use and current TCP/IP network connections
7. Ping - Test availability/connectivity of a specified DNS name or IP
8. Tracert - Shows the path in which packets are taking to get to a certain host and where things are discarded (if possible) as well as the amount of time between hops

Comments

FYI: some of these commands (and a few others) are discussed in Chapter 1 of our textbook here. Additional information about some of these may be found in the virtual InfoSec learning labs you've been doing.

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Looking back, I realized that some of these definitions in your answer aren't all that clear/accurate. e.g. I don't think you have the right distinction between ipconfig and ipconfig /all, and your definition of nslookup doesn't seem clear...