closest dns server to

I. DNS basics [DNS System (server) Working Principle and attack protection methodology] DNS: Domain Name System, the Domain Name resolution server. Its role on the Internet is to convert the Domain Name into an IP address that can be recognized by the network.BIND: Berkeley

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

transaction with the client on this lease. this is probably the last time the client was renewed. FAQ Problem 1: inode authentication failure (connect failed) Solution: User Permissions? (Failed occurs when the Administrator uid is set to 0) Change uid back to 1000, or the reason for the inode's execution permission, change its execution permission, or change the owner and group? Disconnect and reconnect. Or restart inode and try again. Problem 2: inode connection timeout (overtime ). Solution:

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

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

Tags: cache tin image TAB manage exp Res try LookupDns_bind_ forward and reverse domain name resolutionBind Service supports TSIG Secure encryption transfer mechanismDNS domain name resolution service for resolving domain name and IP address correspondence Serviceforward parsing: Based on the domain name lookup corresponding IP AddressReverse parsing: based on IP address lookup for the corresponding domain nameDNS structure Model:however, depending on the number of

Many enterprises have set up multiple Web sites to meet the work needs of employees. To save costs, these websites usually adopt the virtual host technology, that is, building multiple websites on the same server, employees use second-level domain names to access these sites. However, it takes a lot of effort to maintain these second-level domain names, but we can use wildcard domain name resolution technology to solve this problem, you only need to s

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

Install DNS ServerInstall DNS ServerI believe that everyone familiar with the Internet should know the role of DNS server. DNS is closely related to our daily online life.DNS: (Domain NameService) as its name implies, is a Domain name resolution service. Its main function is

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