最近釋出的ElasticSearch版本6.5.4基本不釋出tar.gz包了(被官網隱藏了)，只發布DEB、RPM、MSI和Mac上的軟體包，確實比較容易安裝多了。
下載rpm包：
#wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.4.rpm

## java -version
java version "1.8.0_192"
Java(TM) SE Runtime Environment (build 1.8.0_192-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.192-b12, mixed mode)

# rpm -ivh elasticsearch-6.5.4.rpm 
warning: elasticsearch-6.5.4.rpm: Header V4 RSA/SHA512 Signature, key ID d88e42b4: NOKEY
Preparing...                          ################################# [100%]
Creating elasticsearch group... OK
Creating elasticsearch user... OK
Updating / installing...
   1:elasticsearch-0:6.5.4-1          ################################# [100%]
### 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
Created elasticsearch keystore in /etc/elasticsearch

[
 
[email protected] opt]# sudo systemctl daemon-reload
[[email protected] opt]# sudo systemctl enable elasticsearch.service
Created symlink from /etc/systemd/system/multi-user.target.wants/elasticsearch.service to /usr/lib/systemd/system/elasticsearch.service.
[[email protected] opt]# sudo systemctl start elasticsearch.service
[
 
[email protected] opt]# sudo systemctl status elasticsearch.service
● elasticsearch.service - Elasticsearch
   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
   Active: active (running) since Sun 2018-12-23 02:40:48 CST; 7s ago
     Docs: http://www.elastic.co
 Main PID: 3877 (java)
   CGroup: /system.slice/elasticsearch.service
           ├─3877 /bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -X...
           └─3928 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller

Dec 23 02:40:48 oracle.example.com systemd[1]: Started Elasticsearch.
Dec 23 02:40:48 oracle.example.com systemd[1]: Starting Elasticsearch...

--檢視：
# rpm -ql elasticsearch-6.5.4
/etc/elasticsearch/elasticsearch.yml
/etc/elasticsearch/jvm.options
/etc/elasticsearch/log4j2.properties
/etc/elasticsearch/role_mapping.yml
/etc/elasticsearch/roles.yml
/etc/elasticsearch/users
/etc/elasticsearch/users_roles
/etc/init.d/elasticsearch
/etc/sysconfig/elasticsearch
/usr/lib/sysctl.d/elasticsearch.conf
/usr/lib/systemd/system/elasticsearch.service
/usr/lib/tmpfiles.d/elasticsearch.conf
/usr/share/elasticsearch/LICENSE.txt
/usr/share/elasticsearch/NOTICE.txt
/usr/share/elasticsearch/README.textile
/usr/share/elasticsearch/bin
/usr/share/elasticsearch/bin/elasticsearch
/usr/share/elasticsearch/bin/elasticsearch-certgen
/usr/share/elasticsearch/bin/elasticsearch-certgen.bat
/usr/share/elasticsearch/bin/elasticsearch-certutil
/usr/share/elasticsearch/bin/elasticsearch-certutil.bat
/usr/share/elasticsearch/bin/elasticsearch-cli
/usr/share/elasticsearch/bin/elasticsearch-croneval
/usr/share/elasticsearch/bin/elasticsearch-croneval.bat
/usr/share/elasticsearch/bin/elasticsearch-env
/usr/share/elasticsearch/bin/elasticsearch-keystore
/usr/share/elasticsearch/bin/elasticsearch-migrate
/usr/share/elasticsearch/bin/elasticsearch-migrate.bat
/usr/share/elasticsearch/bin/elasticsearch-plugin
/usr/share/elasticsearch/bin/elasticsearch-saml-metadata
/usr/share/elasticsearch/bin/elasticsearch-saml-metadata.bat
/usr/share/elasticsearch/bin/elasticsearch-setup-passwords
/usr/share/elasticsearch/bin/elasticsearch-setup-passwords.bat
/usr/share/elasticsearch/bin/elasticsearch-shard
/usr/share/elasticsearch/bin/elasticsearch-sql-cli
/usr/share/elasticsearch/bin/elasticsearch-sql-cli-6.5.4.jar
/usr/share/elasticsearch/bin/elasticsearch-sql-cli.bat
/usr/share/elasticsearch/bin/elasticsearch-syskeygen
/usr/share/elasticsearch/bin/elasticsearch-syskeygen.bat
/usr/share/elasticsearch/bin/elasticsearch-translog
/usr/share/elasticsearch/bin/elasticsearch-users
/usr/share/elasticsearch/bin/elasticsearch-users.bat
/usr/share/elasticsearch/bin/x-pack
...
/usr/share/elasticsearch/plugins
/var/lib/elasticsearch
/var/log/elasticsearch
/var/run/elasticsearch

--客戶端訪問：
# curl localhost:9200
{
  "name" : "GS9-MID",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "Lp-wKEA9SE-1pOLFaymFRQ",
  "version" : {
    "number" : "6.5.4",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "d2ef93d",
    "build_date" : "2018-12-17T21:17:40.758843Z",
    "build_snapshot" : false,
    "lucene_version" : "7.5.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

註釋：
預設只允許本地訪問，需要修改配置檔案允許遠端訪問：
# vim /etc/elasticsearch/elasticsearch.yml
network.host: 0.0.0.0
--重啟Elasticsearch服務：
[
 
[email protected] opt]# sudo systemctl stop elasticsearch.service                                           
[[email protected] opt]# sudo systemctl start elasticsearch.service

# curl 192.168.3.113:9200
{
  "name" : "GS9-MID",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "Lp-wKEA9SE-1pOLFaymFRQ",
  "version" : {
    "number" : "6.5.4",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "d2ef93d",
    "build_date" : "2018-12-17T21:17:40.758843Z",
    "build_snapshot" : false,
    "lucene_version" : "7.5.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

若要下載tar.gz包的地址為：
#wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.4.tar.gz