ES 5.2.2中安装x-pack后出现无法用curl localhost:9200启动

在用curl localhost:9200显示以下的错误：{"error":{"root_cause":[{"type":"security_exception","reason":"missing authentication token for REST request [/]","header":{"WWW-Authenticate":"Basic realm=\"security\" charset=\"UTF-8\""}}],"type":"security_exception","reason":"missing authentication token for REST request [/]","header":{"WWW-Authenticate":"Basic realm=\"security\" charset=\"UTF-8\""}},"status":401}

安装x-pack后, 访问elasticsearch默认开启用户名密码认证，可以在配置文件禁用认证

https://blog.csdn.net/u013066244/article/details/63748326