how to find primary and secondary dns

. com,. cn,. org, etc., only about 13 units worldwide.6th step, the local DNS server sends the request back to the GTLD server in one step.The 7th step is to accept the requested gTLD server to find and return the address of the name server that corresponds to this domain name, which is usually your registered domain name server, such as the domain name you are applying for in a domain Name service provider

Garbage station bloggers are still using the WIN7 system, recently through switches and routers are always not connected to the Internet, and other computers on the network can be networked, check found that the computer desktop in the lower right corner of the internet appears yellow exclamation point, after detection prompts "Windows can not communicate with the device or resource (primary DNS server)", I

DNS master server (Master): 192.168.127.147Slave server (slave): 192.168.127.1481. First install the DNS package on master and slave:2. Edit the DNS configuration file on master:Forward parsing and reverse parsing:3, CP the template under the/var/named/directory:-A parameter is to keep the original properties of the file4. Restart the