DNS (Domain Name server) is a huge distributed database that provides domain-specific information through a domain name server, which is responsible for translating domain names into IP addresses. It is not possible to put all domain name information from the Internet on the same computer, so the DNS system uses a tree
DNS (Domain Name System): Provides a mapping of domain-to-IP addresses on the InternetDomain name: Also known as hostname, FQDN (full qualified domain name fully qualified domainname)Basic information:The bind service is typically used in Linux to provide a DNS serverApplication Layer ProtocolBased on UDP53 port number: for queryingBased on TCP53 port number: for master-Slave
转载请说明出处:http://blog.csdn.net/cywosp/article/details/38017027
在上一篇文章(http://blog.csdn.net/cywosp/article/details/38014581)中讲到了使用HTTP重定向来实现server的负载均衡,本文则解说还有一种实现server集群的负载均衡方案——DNS域名解析。 DNS(Domain Name System)是因特网的一项服务,它作为域名和IP地址相互映射的一个分布式数据库,可以使人更方便的訪问互联网。人们在通过浏览器訪问站点时仅仅须要记住站点的域名就可以,而不须要记住那些不太easy理解的IP地址。在
DNS load balancing technology is to configure multiple IP addresses for the same host name on the DNS server, the DNS server returns different resolution results for each query based on the IP address recorded by the host in the DNS
From the setup of the DNS serverThe previous article has a schema procedure that says "Primary DNS server", and now, from the server's schema step, the IP address and server name of the master-slave DNS server are unchanged.Basica
In order to learn more about the TCP/IP protocol, I have read a lot of relevant information recently and collected the following records for later use and convenience:
What does IP address, subnet mask, default gateway, and DNS server mean?
(1) Problem Analysis
001. Q: What is the difference between IP address, subnet mask, default gateway, and DNS
The most notable improvements to DNS in 2008R2 are globalnames to replace wins
This article sets the IP of the domain controller for the preferred DNS of the network domain clients that often have friends. However, secondary DNS sets the IP for external DNS, and even the domain-controlled
DNS (domain Name System) is a long history method for assigning a domain name to a computer with an IP address so that the computer has a character name. If the IP address is 207.46.193.254 computer that is Microsoft server www.microsoft.com. DNS is well designed and works most of the time. However, there are always some unsatisfactory circumstances, it will stri
Generally, the performance and timing problems of dns are caused by suspicious query results. In this case, no matter whether the dns is parsed or not, the consequences are the same.
What should we do for actual problems such as long response time, timeout errors, and invalid cache? After all, these types of query responses are still possible to pass. It only requires more time. In fact, in this case, the w
Article Title: Linux-DNS server configuration and management (I ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
DNS server configuration and management****************First, you
[Introduction] Domain Name Server ). Domain names and IP addresses on the Internet correspond one by one. Although domain names are easy to remember, machines can only know each other's IP addresses. The conversion between them is called domain name resolution, domain name resolution must be completed by a dedicated domain name resolution server. DNS is the
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
Article Title: How to set up DNS on a Linux server. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Author: Wu aiting
Background:
---- The company uses a leased line to connect to Chinanet and obtains a section of class c ip address space (for example, 16). At the sam
Rotten mud: centos installation and configuration of DNS server, centosdns
This article was sponsored by Xiuyi linfeng and first launched in the dark world.
To configure the DNS server in centos, you must first install the DNS software BIND. Of course, we can also install o
generated by record)
Survival time: aging time of items
Configure the aging attribute of the DNS server
650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/02033131c-12.jpg "border =" 0 "/>
Enable clear expired resource records
Refresh time
Last deletion time
650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/0203314225-13.jpg "border =" 0 "/>
Set aging/clea
First, Introduction1, DNS (domain Name System), the Internet as a domain name and IP address mapping of a distributed database, to make it easier for users to access the Internet, instead of remembering the number of IP strings that can be read directly by the machine. The process of obtaining the IP address of the host name is called the domain name resolution through the hostname.2, the role of DNS domain
Why can't machines in different CIDR blocks access the DNS server ??? -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. [I = s] This post was last edited by snowaveg
I. Environment
1. UBUNTU SERVER8.10, server address: 172.16.10.100
2. The entire network
the proxy server, the proxy server directly sends the buffered content to the user. If there is no buffer, a request is sent to the WEB server first to retrieve the data, and then the local cache is sent to the user. This method reduces the number of requests sent to the WEB server and the load on the WEB
1. You must have your own domain name. For example, abc.com. If you do not have a domain name, you must first register a domain name.
2. Register a DNS domain in the international domain name center to make your DNS server globally valid.
1. register the DNS under the domain name in the domain name control panel of the
Many enterprises have set up a number of Web sites to meet the needs of employees, in order to save money, these sites usually use the virtual host technology, that is, on the same server to set up multiple sites, employees use level two domain names to access these sites. However, the workload of maintaining these level two domain names is very high, but we can solve this problem by using a generic domain name resolution technique, so that support fo
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.