最近用阿里公共DNS223.5.5.5,发现wifi状态下广发信用卡APP登录不上,显示无网络,换4G网络后可以登录,修改wifi状态下DNS为1.2.4.8后可以正常登录。随后查看DNS解析记录,发现下列域名无法正常解析出IP地址
sbzw.cgbchina.com.cn
cbae.cgbchina.com.cn
ebank.cgbchina.com.cn
8.95508.com
static.95508.com
mps.95508.com
2020.7.3恢复正常
$ nslookup 8.95508.com 223.5.5.5 服务器: public1.alidns.com Address: 223.5.5.5 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public1.alidns.com 超时 $ nslookup 8.95508.com 223.6.6.6 服务器: public2.alidns.com Address: 223.6.6.6 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public2.alidns.com 超时 $ nslookup 8.95508.com 1.2.4.8 服务器: public1.sdns.cn Address: 1.2.4.8 非权威应答: 名称: 8.95508.com Address: 14.23.106.12 $ nslookup static.95508.com 223.6.6.6 服务器: public2.alidns.com Address: 223.6.6.6 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public2.alidns.com 超时 $ nslookup static.95508.com 1.2.4.8 服务器: public1.sdns.cn Address: 1.2.4.8 非权威应答: 名称: static.95508.com.wswebpic.com Addresses: 183.131.168.174 115.231.31.15 183.131.168.173 Aliases: static.95508.com $ nslookup static.95508.com 223.5.5.5 服务器: public1.alidns.com Address: 223.5.5.5 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public1.alidns.com 超时 $ nslookup www.qq.com 223.5.5.5 服务器: public1.alidns.com Address: 223.5.5.5 非权威应答: 名称: public-v6.sparta.mig.tencent-cloud.net Addresses: 240e:ff:f101:10::14d 240e:ff:f101:10::15f 113.96.232.215 14.18.175.154 Aliases: www.qq.com $ nslookup mps.95508.com 223.5.5.5 服务器: public1.alidns.com Address: 223.5.5.5 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public1.alidns.com 超时 $ nslookup ebank.cgbchina.com.cn 223.5.5.5 服务器: public1.alidns.com Address: 223.5.5.5 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 public1.alidns.com 超时