問題描述：

開發java應用時，需要訪問此網站，在windows上一切正常訪問，部署到linux服務器上就出現了訪問超時

[root@VM_18_115_centos ~]# wget 'https://wap.zhengzhoubus.com/buswechat/WifiBusInterface/transfer/line!getLineAll.action'

--2018-10-26 21:16:22-- https://wap.zhengzhoubus.com/buswechat/WifiBusInterface/transfer/line!getLineAll.action

Resolving wap.zhengzhoubus.com (wap.zhengzhoubus.com)... 117.158.218.230

Connecting to wap.zhengzhoubus.com (wap.zhengzhoubus.com)|117.158.218.230|:443... ^C

[root@VM_18_115_centos ~]# ping https://wap.zhengzhoubus.com

ping: unknown host https://wap.zhengzhoubus.com

本以為是https訪問不了的原因 卻可以訪問百度的https

[root@VM_18_115_centos ~]# wget https://www.baidu.com

--2018-10-26 21:20:26-- https://www.baidu.com/

Resolving www.baidu.com (www.baidu.com)... 220.181.112.244, 220.181.111.188

Connecting to www.baidu.com (www.baidu.com)|220.181.112.244|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 2443 (2.4K) [text/html]

Saving to: ‘index.html’

100%[===========================================================================================>] 2,443 --.-K/s in 0s

2018-10-26 21:20:27 (334 MB/s) - ‘index.html’ saved [2443/2443]

[root@VM_18_115_centos ~]#