ES修改用户名和密码

1、ES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es.

xpack.security.enabled: true
xpack.license.self_generated.type: basic
xpack.security.transport.ssl.enabled: true

2、进入es的安装根目录bin下，/usr/share/elasticsearch/bin

执行

elasticsearch-setup-passwords interactive

设置用户名和密码的命令,为以下几个用户分别设置密码，elastic,apm_system,kibana,kibana_system,logstash_system,beats_system,remote_monitoring_user.

Initiating the setup of passwords for reserved users elastic,apm_system,kibana,kibana_system,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_system]: 
Reenter password for[kibana_system]: 
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_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]

3、kibana.yml 中添加：

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

4、重启即可。