[artisan@localhost bin]$ ./elasticsearch-certutil ca
future versions of Elasticsearch will require Java 11; your Java version from [/usr/java/jdk1.8.0_11/jre] does not meet this requirement
This tool assists you in the generation of X.509 certificates and certificate
signing requests for use with SSL/TLS in the Elastic stack.
The 'ca' mode generates a new 'certificate authority'
This will create a new X.509 certificate and private key that can be used
to sign certificate when running in 'cert' mode.
Use the 'ca-dn' option if you wish to configure the 'distinguished name'
of the certificate authority
By default the 'ca' mode produces a single PKCS#12 output file which holds:
    * The CA certificate
    * The CA's private key
If you elect to generate PEM format certificates (the -pem option), then the output will
be a zip file containing individual files for the CA certificate and private key
Please enter the desired output file [elastic-stack-ca.p12]:    ①
Enter password for elastic-stack-ca.p12 :  ②
[artisan@localhost bin]$

-rw-------. 1 artisan artisan 2524 Feb 17 14:19 elastic-stack-ca.p12

[artisan@localhost elasticsearch-7.6.2]$ ./bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12
future versions of Elasticsearch will require Java 11; your Java version from [/usr/java/jdk1.8.0_11/jre] does not meet this requirement
This tool assists you in the generation of X.509 certificates and certificate
signing requests for use with SSL/TLS in the Elastic stack.
The 'cert' mode generates X.509 certificate and private keys.
    * By default, this generates a single certificate and key for use
       on a single instance.
    * The '-multiple' option will prompt you to enter details for multiple
       instances and will generate a certificate and key for each one
    * The '-in' option allows for the certificate generation to be automated by describing
       the details of each instance in a YAML file
    * An instance is any piece of the Elastic Stack that requires an SSL certificate.
      Depending on your configuration, Elasticsearch, Logstash, Kibana, and Beats
      may all require a certificate and private key.
    * The minimum required value for each instance is a name. This can simply be the
      hostname, which will be used as the Common Name of the certificate. A full
      distinguished name may also be used.
    * A filename value may be required for each instance. This is necessary when the
      name would result in an invalid file or directory name. The name provided here
      is used as the directory name (within the zip) and the prefix for the key and
      certificate files. The filename is required if you are prompted and the name
      is not displayed in the prompt.
    * IP addresses and DNS names are optional. Multiple values can be specified as a
      comma separated string. If no IP addresses or DNS names are provided, you may
      disable hostname verification in your SSL configuration.
    * All certificates generated by this tool will be signed by a certificate authority (CA).
    * The tool can automatically generate a new CA for you, or you can provide your own with the
         -ca or -ca-cert command line options.
By default the 'cert' mode produces a single PKCS#12 output file which holds:
    * The instance certificate
    * The private key for the instance certificate
    * The CA certificate
If you specify any of the following options:
    * -pem (PEM formatted output)
    * -keep-ca-key (retain generated CA key)
    * -multiple (generate multiple certificates)
    * -in (generate certificates from an input file)
then the output will be be a zip file containing individual certificate/key files
Enter password for CA (elastic-stack-ca.p12) :   A
Please enter the desired output file [elastic-certificates.p12]:  B
Enter password for elastic-certificates.p12 :  C
Certificates written to /home/artisan/elasticsearch-7.6.2/elastic-certificates.p12
This file should be properly secured as it contains the private key for
your instance.
This file is a self contained file and can be copied and used 'as is'
For each Elastic product that you wish to configure, you should copy
this '.p12' file to the relevant configuration directory
and then follow the SSL configuration instructions in the product guide.
For client applications, you may only need to copy the CA certificate and
configure the client to trust this certificate.

xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate  
xpack.security.transport.ssl.keystore.path: cert/elastic-certificates.p12   
xpack.security.transport.ssl.truststore.path: cert/elastic-certificates.p12  

[artisan@localhost elasticsearch-7.6.2]$ ./bin/elasticsearch-setup-passwords interactive
future versions of Elasticsearch will require Java 11; your Java version from [/usr/java/jdk1.8.0_11/jre] does not meet this requirement
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]:
Passwords do not match.
Try again.
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]
[artisan@localhost elasticsearch-7.6.2]$
[artisan@localhost elasticsearch-7.6.2]$
[artisan@localhost elasticsearch-7.6.2]$