ipconfig
Shows IP address, subnet mask, and default gateway.
ping <IP/hostname>
Tests connectivity to another device.
tracert <IP/hostname>
Traces the route packets take to a host.
nslookup <domain></domain>
Queries DNS for domain information.
netstat
Shows active network connections and ports.
arp -a
Displays the ARP table (IP to MAC mapping).
hostname
Displays the computer name.