dns public IP and vpn check

[Mary]

I connect my laptop through company LAN, i got my laptop private ip and public ip, also private ip of my dns server.

is it able to get public ip of my dns without logging to firewall to check?

also how to check whether i'm in VPN or not in VPN? thanks

[balaji.bandi]

it all depends on your network.

Most of the organisation run local DNS server, the Main DNS Server have query on public root dns servers.

nslookup is your command tool.

[Mary]

Hi,

you mentioned that you can find public ip of internal DNS server by using nslookup inside intranet ? 

can you give a example to ilustrate? thanks