Figure github bed solve the problem address inaccessible

problem

1, blog content mostly to do with github map bed and found a lot of pictures in the company can not be loaded

2, visit picture address, can not connect raw.githubusercontent.co

solve

1, configure host address, add GitHub direct link

#GitHub Start
192.30.253.112 github.com
192.30.253.119 gist.github.com
151.101.100.133 assets-cdn.github.com
151.101.100.133 raw.githubusercontent.com
151.101.100.133 gist.githubusercontent.com
151.101.100.133 cloud.githubusercontent.com
151.101.100.133 camo.githubusercontent.com
151.101.100.133 avatars0.githubusercontent.com
151.101.100.133 avatars1.githubusercontent.com
151.101.100.133 avatars2.githubusercontent.com
151.101.100.133 avatars3.githubusercontent.com
151.101.100.133 avatars4.githubusercontent.com
151.101.100.133 avatars5.githubusercontent.com
151.101.100.133 avatars6.githubusercontent.com
151.101.100.133 avatars7.githubusercontent.com
151.101.100.133 avatars8.githubusercontent.com 
#github end

2, refresh dns, cmd execution

iptables /flushdns

3, re-visit, not found or access

4, Chrome browser address bar to open: Chrome: // NET-Internals / # HSTS

5, you can search your site is listed as a static HSTS entry in the Query HSTS / PKP domain, the explanation does

6, slide the bottom Delete domain security policies at the input is HSTS domain name, click Delete, refresh to open. Not on the multi-Delete will always be a few!