DNS的全称是DomainNameSystem或者DomainNameService,它主要的作用就是将人们所熟悉的网址(域名)“翻译”成电脑可以理解的IP地址,这个过程叫做DNS域名解析。
因此DNS服务器本身必须长期保持足够的稳定性,域名解析的速度要足够的快,你上网(访问网站)时的速度和稳定性才能得到保障。一旦DNS服务器“出现问题”,比如它自身故障宕机了,或者无法将网址解析出IP地址、解析速度特别慢,又或者解析出错误的IP地址等等,就会导致上网用户出现各种打不开网站、网速慢等疑难杂症了。
PublicDNS+IPv4地址首选:119.29.29.29
AliDNS阿里公共DNSIPv4地址首选:223.5.5.5备用:223.6.6.6
114DNS常规公共DNS(干净无劫持)首选:114.114.114.114、备选:114.114.115.115拦截钓鱼病毒木马网站(保护上网安全)首选:114.114.114.119、备用:114.114.115.119拦截色情网站(保护儿童)首选:114.114.114.110、备用:114.114.115.110
百度BaiduDNSIPv4地址:180.76.76.76IPv6地址:2400:da00::6666
DNS派首选(电信/移动/铁通):101.226.4.6备选(电信/移动/铁通):218.30.118.6首选(联通):123.125.81.6备选(联通):140.207.198.6
CNNICsDNSIPv4地址首选:1.2.4.8备用:210.2.4.8
OneDNSIPv4地址首选:117.50.11.11备用:117.50.22.22
GooglePublicDNSIPv4地址首选:8.8.8.8备用:8.8.4.4IPv6地址首选:2001:4860:4860::8888备用:2001:4860:4860::8844
CloudFlareDNSIPv4地址首选:1.1.1.1备用:1.0.0.1IPv6地址:首选:2606:4700:4700::1111备用:2606:4700:4700::1001
IBMQuad9IPv4地址首选:9.9.9.9备用:149.112.112.112IPv6地址首选:2620:fe::fe备用:2620:fe::9
OpenDNSIPv4地址首选:208.67.222.222备用:208.67.220.220IPv6地址首选:2620:0:ccc::2备用:2620:0:ccd::2
香港宽频DNSIPv4地址首选:203.80.96.10
和记环球电讯DNSIPv4地址首选:202.45.84.58备用:202.45.84.59
PacificSuperNetDNSIPv4地址首选:202.14.67.4备用:202.14.67.14
中华电信公共DNSIPv4地址首选:168.95.1.1备用:168.95.192.1IPv6地址首选:2001:b000:168::1备用:2001:b000:168::2
数位联合电信DNSIPv4地址首选:139.175.252.16备用:139.175.55.244
KTollehDNSIPv4地址:首选:168.126.63.1备用:168.126.63.2
SKBroadbandDNS首选:210.220.163.82备用:219.250.36.130
LGU+DNS两者二选一首选:164.124.101.2备用:203.248.252.2-首选:164.124.107.9备用:203.248.242.2
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