usage: find ip address of the domain through DNS server and send packages
usage: similar to ping, it will display which DNS server is used, we can change DNS server as well.
nslookup server <new-server-ip>
If domain name cannot be resolved to ip address, it indicates your DNS is not working properly, you can change a DNS server and retry.
usage: tells you who owns the domain
For windows user, please download
it first, extract and copy the content in the system’s directory to make it available:
C:\Windows\System32, and then you can run it.
usage: check current device ip information
- Default Gateway is usually the router
- Device ip address can change when reconnected