The Elastic Stack security features enable you to easily secure a cluster. You can password-protect your data as well as implement more advanced security measures such as encrypting communications, role-based access control, IP filtering, and auditing. This guide describes how to configure the security features you need, and interact with your secured cluster.
Security protects Elasticsearch clusters by:
Preventing unauthorized accessedit
To prevent unauthorized access to your Elasticsearch cluster, you must have a
way to authenticate users. This simply means that you need a way to validate
that a user is who they claim to be. For example, you have to make sure only
the person named Kelsey Andorra can sign in as the user
Elasticsearch security features provide a standalone authentication mechanism that enables
you to quickly password-protect your cluster. If you’re already using
LDAP, Active Directory, or
PKI to manage users in your organization, the security features
are able to integrate with those systems to perform user authentication.
In many cases, simply authenticating users isn’t enough. You also need a way to
control what data users have access to and what tasks they can perform. The
Elasticsearch security features enable you to authorize users by assigning access
privileges to roles and assigning those roles to users. For example, this
role-based access control mechanism (a.k.a RBAC) enables
you to specify that the user
kandorra can only perform read operations on the
events index and can’t do anything at all with other indices.
The security features also support IP-based authorization. You can whitelist and blacklist specific IP addresses or subnets to control network-level access to a server.
Preserving data integrityedit
A critical part of security is keeping confidential data confidential. Elasticsearch has built-in protections against accidental data loss and corruption. However, there’s nothing to stop deliberate tampering or data interception. The Elastic Stack security features preserve the integrity of your data by encrypting communications to and from nodes. For even greater protection, you can increase the encryption strength and separate client traffic from node-to-node communications.
Maintaining an audit trailedit
Keeping a system secure takes vigilance. By using Elastic Stack security features to maintain an audit trail, you can easily see who is accessing your cluster and what they’re doing. By analyzing access patterns and failed attempts to access your cluster, you can gain insights into attempted attacks and data breaches. Keeping an auditable log of the activity in your cluster can also help diagnose operational issues.
Where to Go Nextedit
- Getting Started steps through how to install and start using Security for basic authentication.
- How Security Works provides more information about how Security supports user authentication, authorization, and encryption.
- Cross cluster search, clients, and integrations shows you how to interact with an Elasticsearch cluster protected by the Elastic Stack security features.
Have Comments, Questions, or Feedback?edit
Head over to our Security Discussion Forum to share your experience, questions, and suggestions.