## Network

[怎样检测TCP/UDP端口的连通性](https://www.cnblogs.com/harvyxu/p/8590748.html)

[HTTPS证书 DV型、OV型、EV型证书的主要区别](https://www.cnblogs.com/sslwork/p/6193256.html)

[HTTP post 的URL可以有query，query是URL的格式，与HTTP method无关](https://stackoverflow.com/questions/14710061/is-it-valid-to-combine-a-form-post-with-a-query-string/14710450)

[DNS A CNAME MX PTR 等记录有什么区别](http://www.diantansuo.com/what-is-different-dns-record-types)

[[查询外网IP]]

[[Install Wireshark on Ubuntu]]

### Shadowsocks

[Shadowsocks server安装](https://github.com/shadowsocks/shadowsocks/wiki/Shadowsocks-使用说明)

[在CentOS 6.x上安装ShadowSocks服务端](http://www.it610.com/article/3326493.htm)

[Shadowsocks local 使用](http://www.tuicool.com/articles/JRF7Jr)

[Convert Shadowsocks into an HTTP proxy](https://github.com/shadowsocks/shadowsocks/wiki/Convert-Shadowsocks-into-an-HTTP-proxy)

[Shadowsocks Linux 客户端使用](https://github.com/shadowsocks/shadowsocks-qt5/wiki/%E5%AE%89%E8%A3%85%E6%8C%87%E5%8D%97)

### Openconnect

[Ubuntu 16.04/17.10上安装Openconnect](https://www.linuxbabe.com/ubuntu/openconnect-vpn-server-ocserv-ubuntu-16-04-17-10-lets-encrypt)

[Anyconnect MacOS 客户端下载](http://oo4j3gynz.bkt.clouddn.com/anyconnectmac_96976.dmg?attname=&e=1525227218&token=3eH6E16GKFzB7__iYJhaa22uYAbAwFnhpuzI68ko:R30Hz8UBrY_vpNv7evD7e05Laj8)

### Netgear

[Netgear 固件下载](http://support.netgear.cn/support/download.asp)

[Netgear 路由器开启IPV6](https://kb.netgear.com/24006/How-do-I-set-up-an-IPv6-Internet-connection-on-my-Nighthawk-router)

[EX6100/EX6150/EX6120/EX3700/EX6400/EX7300无线扩展(中继)设置教程](https://mp.weixin.qq.com/s/ZZVDG3b3-_wzTlpJ_0kLFg)