前天的DNS故障事件,是DNSPod遭受大流量攻击然后被迫下线了,导致N多人网站都解析不到……
鄙人的小破博客(广告:http://du9l.cn)就很凑巧很凑巧的把所有DNS都放在了DNSPod上,在昨天我最想写文章的时候,怎么都上不去了……
刚开始没查出是谁的问题,从CNC、服务商甚至到Tencent都骂了一遍,最后仔细查了一下才知道原来是DNSPod出问题了……
因为DNSPod的速度、功能都不错,而且经过与DNSWood和已经倒闭的EverDNS、还有新网的DNS比较之后,我选的DNSPod,一直用起来都不错,而且一直感觉免费、而且只有6台DNS的服务商应该是个小众服务商吧。
今天去cnBeta上看了新闻,才知道原来传说中的暴风影音也是用DNSPod的……太强大了……
在前天发现DNSPod的问题之后,昨天把手下的几个重要域名优先转到了DNSWood上,不过DNSPod下还有几个域名没有来得及转,估计近几天就会完完全全的转到DNSWood了。
今天查了一下,基本都生效了。
Default Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
> set type=ns
> du9l.cn
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
du9l.cn nameserver = c.dnswood.com
du9l.cn nameserver = d.dnswood.com
du9l.cn nameserver = e.dnswood.com
du9l.cn nameserver = a.dnswood.com
du9l.cn nameserver = b.dnswood.com
a.dnswood.com internet address = 222.51.175.206
a.dnswood.com internet address = 124.42.123.125
b.dnswood.com internet address = 124.42.123.126
b.dnswood.com internet address = 222.51.175.207
c.dnswood.com internet address = 222.51.175.206
d.dnswood.com internet address = 222.51.175.207
e.dnswood.com internet address = 124.42.123.126
> du9l.com
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
du9l.com nameserver = c.dnswood.com
du9l.com nameserver = d.dnswood.com
du9l.com nameserver = e.dnswood.com
du9l.com nameserver = a.dnswood.com
du9l.com nameserver = b.dnswood.com
a.dnswood.com internet address = 124.42.123.125
a.dnswood.com internet address = 222.51.175.206
b.dnswood.com internet address = 222.51.175.207
b.dnswood.com internet address = 124.42.123.126
c.dnswood.com internet address = 222.51.175.206
d.dnswood.com internet address = 222.51.175.207
e.dnswood.com internet address = 124.42.123.126
不过有个很神奇的现象,因为我的com域名现在挂在万网,改DNS的时候只让写了两个DNS,我填的A和B(因为这两个是双IP的),不过在上面的结果看来却自动挂上了全部5个DNS,不知道是怎么实现的。
顺手查了一下身边几个认识的人所用的DNS:
> leafduo.com
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
leafduo.com nameserver = ns2.xinnet.cn
leafduo.com nameserver = ns2.xinnetdns.com
ns2.xinnet.cn internet address = 202.10.71.61
ns2.xinnet.cn internet address = 123.100.7.200
ns2.xinnet.cn internet address = 123.100.7.203
ns2.xinnet.cn internet address = 202.10.71.53
ns2.xinnetdns.com internet address = 123.100.7.211
ns2.xinnetdns.com internet address = 202.10.71.57
ns2.xinnetdns.com internet address = 123.100.7.207
> hzhua314.cn
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
hzhua314.cn nameserver = ns3.dreamhost.com
hzhua314.cn nameserver = ns1.dreamhost.com
hzhua314.cn nameserver = ns2.dreamhost.com
ns1.dreamhost.com internet address = 66.33.206.206
ns2.dreamhost.com internet address = 208.96.10.221
ns3.dreamhost.com internet address = 66.33.216.216
> jnnd.com
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
jnnd.com nameserver = ns11.bigwww.com
jnnd.com nameserver = ns12.bigwww.com
jnnd.com nameserver = ns13.bigwww.com
jnnd.com nameserver = ns14.bigwww.com
jnnd.com nameserver = ns15.bigwww.com
jnnd.com nameserver = ns16.bigwww.com
ns11.bigwww.com internet address = 222.208.183.174
ns11.bigwww.com internet address = 121.11.253.194
ns11.bigwww.com internet address = 221.10.252.206
ns13.bigwww.com internet address = 121.11.253.194
ns14.bigwww.com internet address = 211.10.253.238
ns15.bigwww.com internet address = 125.64.24.43
ns16.bigwww.com internet address = 125.65.165.158
> qfdk2009.cn
Server: ns.sdjnptt.net.cn
Address: 202.102.128.68
Non-authoritative answer:
qfdk2009.cn nameserver = ns5.volit.com
qfdk2009.cn nameserver = ns6.volit.com
leafduo大牛用的新网的DNS,hzhua大牛用DreamHost自己的DNS,tiane12大牛的门户站用的是bigwww(华夏名网),qfdk大牛用的火山互联自己的DNS。
呃,咋就没有一个用智能解析的呢,tiane12大牛的估计是吧,写了6个DNS(就5个管事的嘎嘎嘎嘎)。
嗯,DNS是个很重要的东西,如果国外哪个DNS支持电信/网通解析而且不会被水产的话我就换了。