whats dns server

community) to an IP address such as 190.96.134.163. If there is no DNS, you must use a number as hard to remember as 190.96.134.163. The computer that provides the DNS service is the DNS server.There are three types of DNS servers: Cache-only server, Primary Name

Author: syd168 15:09:18 from: Mr. Linux I. Basic DNS knowledgeAs we all know, in network communication, data links Use MAC addresses. The network layer uses IP addresses, and the transport layer uses port numbers, each of which has its own identification method. IP addresses are the most closely related to users. Each incoming computer (whether Internet or intranet) must have its own IP address to ensure correct inform

Frequent internet friends may often go to Sina, Sohu and other large websites, only need to enter their web site in the browser to achieve access, it seems very simple, but technically speaking, but contains a complex process: in the Web page, first in the browser input site domain name, Then the browser will be based on the local DNS server settings will be entered into the site domain name to the correspo

system expansion capability. More than two servers to work together must involve load balancing problem, the current commonly used load balancing technology are: NAT load balancing, reverse proxy load balancing and DNS load. NAT load Balancing maps an external IP address to multiple internal IP addresses, dynamically converts each connection request to an internal server address, and leads the external c

Powershell and win dns server to solve the website load balancing problem, powershelldns Add a windows dns server by using powershell. Solve the website load balancing problem from the perspective of adjusting the dns Server Reso

Unable to display page. The page you are looking for is currently unavailable. There may be a technical problem with the WEB site, or you may need to adjust your browser settings. A server or DNS error was not found. Ping can ping, Telnet 80 port also no problem. Look at the Httperror under LogFiles and find a lot of "36_connections_refused" error messages. Baidu searched the next "_connections_refused" t

Windows 2000 automatically starts the DNS Client Service, which provides the Client name resolution and cache service. Your DNS query results are cached locally. When configuring a DNS server, if you do not have a good grasp of this principle, some incorrect operations will often occur. You can use the command at the c

the default line, do not need to change what settings. The default installation is in the Windows\system32\dns directory. third, DNS server configuration 3.1 Directory weighting When we are planning a Windows system, the C disk is formatted as NTFS, according to the second installation procedure, the BIND installer creates a new named account, which

Dns server Reconstruction and Recovery | dns4521. If a DC with DNS installed is damaged and the DNS is rebuilt on another host, it seems that there is no problem in the first reconstruction. However, after the host role is disabled, the dns record was deleted by mistake, and

Browsing the web allows us to do what we often do in the day-to-day use of the Win7 system, and recently a user reflects that in the Win7 system to open the Web page, always pop-up "can not find a server or DNS error" window, resulting in the network, but QQ and other software can be used normally, how to deal with this problem? ? below to explain the Win7 system to open the Web page pop-up "

DNS (DomainNameSystem) is a tcpupd-based service that listens to port 53 of TCP and UPD at the same time. At the beginning, when the network was just born, there were only a few computers connected to the network. With the development of personal PCs, the network grew explosively and it was hard to remember a simple IP address, all with the DNS service, it can Domain Name System It is a t-based Cp/Upd servi

The entire Hteret family connected to hundreds of billions of server personal hosts, most of the sites, parts and other servers have used the domain name form of address, such as Www.google.com.mail 163.com. It is clear that this form of address is more intuitive and easier for users to remember than making the 01231317202103 7 a a month.DNS system in the networkThe role is to maintain a number of addresses are connected, which recorded a variety of h

There is a lot of knowledge about DNS on the Internet, I will not talk about the principle of DNS and do noun explanation here. In this article we will take an example to describe the configuration of DNS, the experimental environment is as follows: Domain name: guoxuemin.cn, subdomain: shenzhen.guoxuemin.cn primary Domain Name

DNS server on the same machine. In other words, it is because there is a DNS server on one machine that it is not improper (and often beneficial) to redirect the DNS client activity of this machine to a DNS

Build a master-slave DNS server and explain important transfer and recursive attributes 1. The main function of allow-recursion is to allow recursive queries on hosts to prevent DNS servers from hanging up or wasting network resources. For example, only recursive DNS queries of hosts in the 1.1.1.0/24 network segment a

The previous days have been doing the company's DNS scheduler, but due to poor performance, the scheme was eventually discarded. 2.5 months of painstaking efforts, do not want to waste, so changed, the trade secret related parts removed, became a public DNS server. In fact, the simple point, is a can do DNS resolution

Transferred from: http://www.cnblogs.com/JuneWang/p/3917697.htmlIn order to learn more about the TCP/IP protocol, recently read a lot of relevant information, collected and recorded as follows, for later use and convenient for you to learn:IP address, subnet mask, default gateway, what does DNS server mean?(a) Problem analysis001. Q: IP address, subnet mask, default gateway,