 | What's my IP address and network information?
 | Start .. Run ... winipcfg (Windows 95/98) |
| ipconfig /all |
|
| Can the computer 'see' its network card?
| ping 127.0.0.1 (hardware loopback address) |
|
| Can the computer 'see' the network?
| ping gemini |
| ping 153.90.2.2 (if only the second one works, then the DNS suffixes are
incorrectly configured) |
|
| No? Can the computer get to the gateway of your building?
| ping 153.90.xxx.254 (where the third octet is your subnet number) |
|
| Can the computer connect off campus?
| Pinging off-campus no longer works due to blocking outbound ICMP
echo-requests |
|
| If the connection can't be established, where is it failing?
| tracert also doesn't work anymore |
|
| Other miscellaneous items:
| What network connections are currently made to or from my machine?
 | netstat (-n prevents the DNS lookup to speed things up, -a shows
all listening ports) |
| This is a great one if you suspect a compromised machine. |
|
| A handy program that combines ping and tracert is
pathping. |
| What shares am I connected to?
| net use |
|
| What machines can my computer see?
| net view |
|
| How is my network communication performing?
| net statistics workstation |
|
| What is my MAC address?
| arp -a |
|
| Has my routing table been corrupted?
| route print |
|
|
| Can I reach the computer through the network?
| ping user01 |
|
| What is the IP address of user01?
| nslookup user01 |
|
| What is the node name for 153.90.200.200?
| nslookup 153.90.200.200 (running both of these tell you if the
DNS entries are correct) |
|
| Who does the node name belong to, and where is the computer likely
located?
| nslookup -typ=any user01 (the IP address won't work here) |
|
| What user name is logged on at the moment, if any?
| nbtstat -a user01 |
|
| What domain or workgroup does the machine belong to?
| (same as above) |
|
| What is the MAC (hardware) address of the machine?
| (also same as above) |
|
| Who owns this IP address (for non-MSU IP's)?
|
