Linux 下安装 Elasticsearch 8 和 Kibana 8

安装以下版本软件：

• Elasticsearch 8.2.3
• Kibana 8.2.3

安装 Elasticsearch

    下载 rpm 包并安装：

// 下载
# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.2.3-x86_64.rpm
// 安装
# rpm -ivh elasticsearch-8.2.3-x86_64.rpm 
准备中...                          ################################# [100%]
Creating elasticsearch group... OK
Creating elasticsearch user... OK
正在升级/安装...
   1:elasticsearch-0:8.2.3-1          ################################# [100%]
--------------------------- Security autoconfiguration information ------------------------------

Authentication and authorization are enabled.
TLS for the transport and HTTP layers is enabled and configured.

The generated password for the elastic built-in superuser is : 5gCSq67v=vhdM7N6Yrak

If this node should join an existing cluster, you can reconfigure this with
'/usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token '
after creating an enrollment token on your existing cluster.

You can complete the following actions at any time:

Reset the password of the elastic built-in superuser with 
'/usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic'.

Generate an enrollment token for Kibana instances with 
 '/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana'.

Generate an enrollment token for Elasticsearch nodes with 
'/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node'.

-------------------------------------------------------------------------------------------------
### NOT starting on installation, please execute the following statements to configure elasticsearch service to start automatically using systemd
 sudo systemctl daemon-reload
 sudo systemctl enable elasticsearch.service
### You can start elasticsearch service by executing
 sudo systemctl start elasticsearch.service

    从安装过程可以看到，elastic 超级账户的密码是 5gCSq67v=vhdM7N6Yrak
    配置文件不做调整，直接启动 elasticsearch，并且登录验证。

安装 Kibana

    接着安装 Kibana

wget https://artifacts.elastic.co/downloads/kibana/kibana-8.2.3-x86_64.rpm
rpm -ivh kibana-8.2.3-x86_64.rpm

    Kibana配置文件可以不做修改，为了便于操作，能从其他主机访问，本人修改了 server.host

server.host: "0.0.0.0"

    启动Kibana，查询到 Kibana 配置网址，其中 code 取值每次安装都不同：

    打开浏览器界面进行 Kibana 与 Elasticsearch 的连接配置：

    页面需要输入 Token，使用以下命令生成：

/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana

    将 Token 复制粘贴：

    进入下一页，需要输入验证码。使用以下命令生成验证码：

/usr/share/kibana/bin/kibana-verification-code

    输入验证码。最后，Elasticsearch 和 Kibana 的安装配置完成。