【分布式搜索引擎】Elasticsearch之开启Elasticsearch的用户名密码验证

一、首先在elasticsearch配置文件中开启x-pack验证, 修改config目录下面的elasticsearch.yml文件，在里面添加如下内容,并重启

 xpack.security.enabled: true

二、在elasticsearch的bin下执行elasticsearch-setup-passwords interactive命令，elasticsearch-setup-passwords是elasticsearch命令行工具用来设置密码的，已交互方式为内置的各个用户设置密码

➜ sh elasticsearch-setup-passwords interactive
Initiating the setup of passwords for reserved users elastic,apm_system,kibana,logstash_system,beats_system,remote_monitoring_user.
You will be prompted to enter passwords as the process progresses.
Please confirm that you would like to continue [y/N]y

Enter password for [elastic]:
Reenter password for [elastic]:
Enter password for [apm_system]:
Reenter password for [apm_system]:
Enter password for [kibana]:
Reenter password for [kibana]:
Enter password for [logstash_system]:
Reenter password for [logstash_system]:
Enter password for [beats_system]:
Reenter password for [beats_system]:
Enter password for [remote_monitoring_user]:
Reenter password for [remote_monitoring_user]:
Changed password for user [apm_system]
Changed password for user [kibana]
Changed password for user [logstash_system]
Changed password for user [beats_system]
Changed password for user [remote_monitoring_user]
Changed password for user [elastic]

三、配置kibana，使其能够访问elasticsearch

修改kibana配置文件,config下的kibana.yml,添加如下内容

elasticsearch.username: "elastic"
elasticsearch.password: ""