1。 When the client sends a query request, it first looks in the cache of the local computer. If the query information cannot be obtained locally, the query request will be sent to the dns server. 2. First, the client sends a domain name query request to the local dns server. After receiving the query, the local dns server first searches in the records of the area managed by the server. If a record is found, it will be used for analysis. If there is no regional information that meets the query requirements, the server will search in the local cache.

3. If the local server cannot find the information queried by the client locally, send the client request to the root dns server.

4. The root domain name server is responsible for parsing the root domain part of the client request, and it returns the dns server address containing the next-level domain name information to the client's dns server address.

5. The client's dns server uses the address resolved by the root domain name server to access the next-level dns server and get the address of my dns server in the next-level domain.

6. Approach the query target step by step according to the above recursive method, and finally find the corresponding ip address information on the dns server of the target domain name.

7. The local dns server of the client returns the recursive query result to the client.

8. When the client accesses the target host using the ip obtained from the local dns server, it will complete a resolution process.

What is the dns server in the information obtained by searching domain names with whois, and what is the primarynameserver obtained by searching cname with nslookup?

WHOIS records only the DNS server address of the domain name. When a domain name is requested to be resolved, it will be resolved from your group. The NS record is just an NS address provided by a domain name resolution service provider, which is different.

What about dns 1 and dns2 on the mobile phone?

Mobile phone connected to wifi. If it is an Android phone, you can check the DNS server as follows:

1, open the phone setting interface;

2. In the setting interface, select WLAN to view the connected wifi list;

3. Press and hold the connected wifi name, the network modification dialog box will pop up, and click the "Modify Network" button;

4. In the pop-up dialog box, check "Show advanced options";

5. Then drop down and select "Static" in the column of IP settings;

6. If you continue to drop down the interface, you can see the interface for setting DNS server and IP address. There are generally two domain name servers.

How does your own dns server resolve external domain names?

The operation steps of local DNS to resolve public domain names are as follows:

1. First, the DNS server was successfully built;

Click Start-Administrative Tools-DNS;

Open DNS manager;

Or click "Server Manager" to configure the DNS server through the server manager;

2. Right click the corresponding DNS server,

Click "Properties";

3. Click "Repeater";

4. Click "Edit";

5. Enter the IP address of the DNS server;

Get into the car,

Through the same operation as above, IP addresses of multiple forwarding servers can be successfully added;

6. Select the IP address of the corresponding DNS server,

Click Move Up to increase the priority of the corresponding forwarding server;

Click Move Down to lower the priority of the corresponding forwarding server;

Click Delete to delete the corresponding forwarding server;

7. Add the IP address of the DNS server.

And set the priority,

Click OK;

8. Check "If there is no answering machine available, please use the root prompt".

Click OK;

You can successfully configure the local DNS server forwarder.

With the local DHCP server, the client can automatically obtain the IP address and DNS, and can quickly access local application services and successfully access public websites.

I hope I can help you. Thank you for your support.

How to set the dns parent domain name?

How to set the DNS address of a domain name

Sometimes we need to change and set the domain name DNS address of our computer to correct the abnormal problems of the network, but when we make the correction, you need to know the original domain name DNS address of our computer first, so we need to make an inquiry first. The query method is simple. First of all, we just need to enter the computer, then enter the CMD search command prompt program in the program search bar of the start menu, and click the run command prompt at the same time. Then enter the ipconfig/all command at the command prompt, and click Enter after confirmation. At this time, the command line will prompt its related results, including IP address, DNS address and so on.

After getting your own domain name DNS address, you can start to modify and set up DNS. First, click the icon of the network or enter the control panel, click to open the network and * * * enjoy the center function, select the local connection and * * * enjoy the center function in the network, open the status function of the local connection, select the properties in the status, and select "Internet Protocol Version 4" at the same time. Double-click and select the attribute to modify below, where you can modify the settings and contents of DNS address of domain name. That is, select the option "Use the following DNS server address" and enter the DNS server address you are searching for. The first choice can be 202.96. 128. 166, and the backup can be 202.96. 134. 133. Click OK after input to modify directly.

How to resolve the pan-domain name of LAN with host and dns?

Add DNS server in LAN.

Change the DNS of all machines to point to this machine/require all employees to change the DNS of this machine.

Bind the domain name on this DNS server (just write hosts), then set the domain name that can't be found, and query to 8.8.8.8 or some other public DNS.

Not all devices can change hosts, but almost all devices (including iOS devices that have not escaped from prison) can customize DNS, which is also a popular method for major companies at present.