这个 DNS 问题好奇怪， ping， nslookup 都不好使了，但是网站访问正常。

[P99LrYZVkZkg]

> sudo discoveryutil mdnsflushcache

Password:
> sudo discoveryutil udnsflushcaches

>
> clear
> ping www.baidu.com
PING www.baidu.com (127.128.0.58): 56 data bytes
Request timeout for icmp_seq 0
^Z
[5] + 875 suspended ping www.baidu.com
> nslookup www.baidu.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: www.baidu.com
Address: 127.128.0.58

> nslookup www.sina.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: www.sina.com
Address: 127.128.0.250

> nslookup www.weibo.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: www.weibo.com
Address: 127.128.0.251

> nslookup www.qq.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: www.qq.com
Address: 127.128.0.252

> nslookup fuckyou.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: fuckyou.com
Address: 127.128.0.253

> nslookup xljklsjfljlwejrojsdljfkljwejlfsd.com
Server: 223.5.5.5
Address: 223.5.5.5#53

Non-authoritative answer:
Name: xljklsjfljlwejrojsdljfkljwejlfsd.com
Address: 127.128.0.254

>

每次解析到的IP都是+1，都是内网地址。
比如这次解析到的IP是：127.128.0.2
下次随便一个域名解析到的IP就是：127.128.0.3

我用的阿里DNS呀，换百度的DNS结果也是一样的。

奇怪的是浏览器访问各个网站都是很正常的。命令行下用TCP模式也能正常。

[Septembers]

用dnscrypt

[P99LrYZVkZkg]

@Septembers 我用了DnsCrypt，unbound，都一样。

关键最奇怪的是我刚查把网全部断了，重启。

> nslookup ccc.com
Server: 127.0.0.1
Address: 127.0.0.1#53

Non-authoritative answer:
Name: ccc.com
Address: 127.128.0.13

> nslookup ddd.com
Server: 127.0.0.1
Address: 127.0.0.1#53

Non-authoritative answer:
Name: ddd.com
Address: 127.128.0.14

[loveyu]

我也遇到这个问题。无助中，TCP查询的没问题

[loveyu]

问题出在ProxyCap的Resolve names remotely选项上

[P99LrYZVkZkg]

@loveyu 是的，上次差点重装系统，最后在Twitter上查到ProxyCap的问题。