（1）elasticsearch-5x下的 config/elasticsearch.yml

http.cors.enabled: truehttp.cors.allow-origin: "*"

（2）elasticsearch-head下Gruntfile.js

connect: { server: { options: { hostname: '0.0.0.0', port: 9100, base: '.', keepalive: true } } }

（3）浏览器问题：chrom不能连，换ie试试