what is primary dns

C # obtain CPUID (MD5 output), Nic ID, primary DNS, backup DNS, Using System;Using System. Collections. Generic;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Linq;Using System. Text;Using System. Windows. Forms;Using System. Management;Using System. Security. Cryptography;Using System. Net;Using System. Net. NetworkInformatio

One, the type of DNS server①Primary DNS Server (Master)A domain's master server holds the zone configuration file for that domain, and all of the configuration and changes are made on that server, and this essay explains how to configure a domain's primary DNS server②Seconda

First, the Experimental network topology diagram:Ii. Purpose of realization:Domain Users of the subdomain controller can query the A record of the DNS server to the primary domain controller, and the domain user of the primary domain controller can also query the a record of the DNS server to the subdomain controller.A

Shanghai ms (Headquarters) has more than 800 nodes. subsidiaries, offices, and partners all over the world are remotely connected to the headquarters, what is the responsibility of the company as its in charge of the network! Details determine success or failure: network devices (such as routers, switches, firewalls), servers ...... Next to the PC, and even an OE (or outlook) configuration, backup, mail imp

to resolve the domain name.3rd step, how, how to know the name server? In our network configuration will have "DNS server address" this, this address is used to solve the above if two process can not be resolved when to do, the operating system will send this domain name to set here Ldns, that is, the domain name server in the region. This

Do not know if you have not used to set up DNS to maximize the speed of computer network optimization, set up DNS everyone is relatively unfamiliar, because generally also rarely mentioned, because the computer is generally the default is to automatically obtain

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)",

Configure a primary domain name server as follows① domain name is linux.net, network segment is 192.168.10.0/24, server IP is 192.168.10.10, host name is Dns.linux.net② servers to resolve include: Www.linux.net (192.168.10.11)Ftp.linux.net (192.168.10.12)Mail.linux.net (192.

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 fi

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/35/58/wKioL1OrhYfihiRYAACjcWPN5bA441.jpg "alt=" 1.jpg "/ >Recently encountered this kind of problem, in the network phase view of a variety of methods, the end of a complete solution, and finally after the reference to multiple solutions, the chance to solve the problem, now share.EnvironmentDomain: win2k12Client: WIN7There are two kinds of client IP acquisition, one is DHCP acquisition, domai

must correspond to an IP address, an IP address can correspond to multiple domain names at the same time, but the IP address does not necessarily have a domain name. If you are the webmaster this sentence very good understanding, for example, there is a server corresponding to an IP, and this server can be placed on multiple sites, different sites can have multiple domain names, such as our "Router network" as an example: through Webmaster tools can

to some applications Program When an HTTP request is sent, the IPv6 DNS lookup always times out before IPv4 intervention (usually reported to take about 30 seconds), which is also a common cause of slow DNS lookup process. 3) Some people reported: "One day, the O M Department declared that the company's network had

three locations in AD (table 1) to ensure that there are no DNS records. If you see them, you have not deleted the region or copied it. When DNS is removed from the AD, keep the configuration for two or three days. Now you have a single source (control), so there may be no inconsistency. Make sure that all operations are normal. Creating a standard subarea point

What does router hijacking mean? Router hijacking, usually refers to the wireless network in the radio router, other users by cracking the wireless network password, thereby connecting to your wireless network, and then through the login router management interface to control the entire wireless network. In layman's parlance, the router is hijacked is, others c

Q: What is "DNS"? What is the text of this? A: DNS, to put it simply, is domain Name System, which is translated into Chinese

view of the elimination of the information reliable transmission mechanism, the security and sequencing functions are transferred to the upper application to complete, greatly reducing the execution time, so that the speed is guaranteed.DNS uses the TCP protocol while the zone is being transferred, and the UDP protocol is used at other times;The

One question to ask is: In what situations does DNS use UDP and TCP, respectively?Check it out. Found that the data can be queried very little, most of the DNS protocol used to classify UDP is not the case, DNS occupies both UDP a

Under what circumstances does DNS use UDP and TCP respectively? Server dns uses UDP and TCP port 53 at the same time. This single application protocol uses two transmission protocols at the same time, which is an alternative in the TCP/IP stack. However, few people know under