User authentication in Elasticsearch without third party tools
Yes it is possible and you can use X-Pack, which is an Elastic Stack extension that provides security. By default, when you install Elasticsearch, X-Pack is installed with a 30-day trial. here the docs: https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-security.html
If you are looking for something open-source opendistro for elasticsearch provides the same services for free and has support for Active Directory, LDAP, Kerberos, SAML, and OpenID Connect, here the docs: https://opendistro.github.io/for-elasticsearch-docs/docs/security-configuration/
If you wish you can install the OSS version of elasticsearch, which includes only Apache 2.0 licensed code (here: https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-oss-7.6.1-linux-x86_64.tar.gz) and then install the standalone plugin for security with this command:
`sudo bin/elasticsearch-plugin install https://d3g5vo6xdbdb9a.cloudfront.net/downloads/elasticsearch-plugins/opendistro-security/opendistro_security-`1.4.0.0.zipas described here:
https://opendistro.github.io/for-elasticsearch-docs/docs/install/plugins/#security
Let me know if you need help for configure authentication!Good luck!
The basic auth part if free starting from Elasticsearch 6.8. However, you'll need to buy X-Pack for advanced stuff like LDAP Authn / Authz.
https://www.elastic.co/blog/security-for-elasticsearch-is-now-free