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声明：此教程只用于学习，如有商业用途请购买收费版。
elasticsearch版本6.4.2
启用x-apck
安装elasticsearch后启动服务。
[2018-10-29T19:07:09,614][INFO ][o.e.t.TransportService ] [es-wk-node-1] publish_address {127.0.0.1:19300}, bound_addresses {127.0.0.1:19300}
[2018-10-29T19:07:12,713][INFO ][o.e.c.s.MasterService ] [es-wk-node-1] zen-disco-elected-as-master ([0] nodes joined)[, ], reason: new_master {es-wk-node-1}{WnMQ7jr9RFeL1TUzFAwPow}{yVqOosHpTLCxtR4NCYao8Q}{127.0.0.1}{127.0.0.1:19300}{ml.machine_memory=33567985664, xpack.installed=true, ml.max_open_jobs=20, ml.enabled=true}
[2018-10-29T19:07:12,720][INFO ][o.e.c.s.ClusterApplierService] [es-wk-node-1] new_master {es-wk-node-1}{WnMQ7jr9RFeL1TUzFAwPow}{yVqOosHpTLCxtR4NCYao8Q}{127.0.0.1}{127.0.0.1:19300}{ml.machine_memory=33567985664, xpack.installed=true, ml.max_open_jobs=20, ml.enabled=true}, reason: apply cluster state (from master [master {es-wk-node-1}{WnMQ7jr9RFeL1TUzFAwPow}{yVqOosHpTLCxtR4NCYao8Q}{127.0.0.1}{127.0.0.1:19300}{ml.machine_memory=33567985664, xpack.installed=true, ml.max_open_jobs=20, ml.enabled=true} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)[, ]]])
[2018-10-29T19:07:12,740][INFO ][o.e.x.s.t.n.SecurityNetty4HttpServerTransport] [es-wk-node-1] publish_address {127.0.0.1:19200}, bound_addresses {127.0.0.1:19200}
[2018-10-29T19:07:12,741][INFO ][o.e.n.Node ] [es-wk-node-1] started
[2018-10-29T19:07:13,022][WARN ][o.e.x.s.a.s.m.NativeRoleMappingStore] [es-wk-node-1] Failed to clear cache for realms [[]]
[2018-10-29T19:07:13,070][INFO ][o.e.l.LicenseService ] [es-wk-node-1] license [fc52e380-ef5a-4d4e-bdd4-1a924e42440e] mode [basic] - valid
启动trial license（30天试用）
curl -H "Content-Type:application/json" -XPOST http://127.0.0.1:19200/_xpack/license/start_trial?acknowledge=true
可以看到日志多了两行输出：
[2018-10-29T19:07:13,084][INFO ][o.e.g.GatewayService ] [es-wk-node-1] recovered [0] indices into cluster_state
[2018-10-29T19:07:42,982][INFO ][o.e.l.LicenseService ] [es-wk-node-1] license [090aec7f-46b1-464e-8c66-a795e938b831] mode [trial] - valid
设置用户名密码
bin/elasticsearch-setup-passwords interactive
发现如下错误提示：
org.elasticsearch.ElasticsearchException: Security must be explicitly enabled when using a trial license. Enable security by setting [xpack.security.enabled] to [true] in the elasticsearch.yml file and restart the node.
需要在配置文件开启x-pack验证：
# 配置文件增加如下参数
xpack.security.enabled: true
再次执行设置用户名密码的命令:
Initiating the setup of passwords for reserved users elastic,kibana,logstash_system,beats_system.
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]:
passwords must be at least [6] characters long
Try again.
Enter password for [elastic]:
Reenter password for [elastic]:
Passwords do not match.
Try again.
Enter password for [elastic]:
Reenter password for [elastic]:
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]:
Changed password for user [kibana]
Changed password for user [logstash_system]
Changed password for user [beats_system]
Changed password for user [elastic]
完成密码设置。(用户名elastic，密码为输入)
修改密码命令：
curl -H "Content-Type:application/json" -XPOST -u elastic 'http://127.0.0.1:9200/_xpack/security/user/elastic/_password' -d '{ "password" : "123456" }'
修改kibana配置文件，设置用户名密码：
elasticsearch.username: "elastic"
elasticsearch.password: "123456"
启动kibana，访问web页面，发现需要输入密码才能访问，说明x-pack使用成功。
破解
方式：修改的x-pack-core-6.4.2.jar的LicenseVerifier.java和XPackBuild.java，然后编译打包。
修改后的jar包（6.4.2版本，亲测可用）：
https://download.csdn.net/download/qq_36666651/10752660
使用修改后的x-pack-core-6.4.2.jar替换原本的jar包。
jar包路径：
# es的安装目录下
./modules/x-pack/x-pack-core/
然后，访问kibana，在management选项卡选择elasticsearch-》License Management，更新license，license保存为json格式，然后上传即可。
license内容（直接用的网友处理好的）：
{
"license": {
"uid": "9gfhf46-5g78-4f1e-b5a4-afet359bc3a3",
"type": "platinum",
"issue_date_in_millis": 1534723200000,
"expiry_date_in_millis": 2544271999999,
"max_nodes": 100,
"issued_to": "www.plaza4me.com",
"issuer": "Web Form",
"signature": "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",
"start_date_in_millis": 1534723200000
}
}
上传完成后，在license management查看可以发现有效期已经到了2050年，破解成功。