现在打开的是一个自签名的 www.notexist.com 证书。强制信任之后返回 502.
t$ dig blog.csdn.net
; <<>> DiG 9.10.6 <<>> blog.csdn.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7565 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;blog.csdn.net. IN A
;; ANSWER SECTION: blog.csdn.net. 241 IN CNAME f32ntumnfh53rmbfkgfrhzcp2sn0rrjh.yundunwaf1.com. f32ntumnfh53rmbfkgfrhzcp2sn0rrjh.yundunwaf1.com. 241 IN A 39.96.126.153
;; Query time: 2 msec ;; SERVER: 192.168.199.1#53(192.168.199.1) ;; WHEN: Fri Mar 13 21:06:20 CST 2020 ;; MSG SIZE rcvd: 119