Elasticsearch

Encryption at Rest for Elasticsearch: The Complete Series

Encryption at Rest for Elasticsearch: The Complete Series

Daniel Gleim || 2026-07-16

The full Encryption at Rest series in one place: what it is, where it applies across industries, and how it maps to PCI-DSS, GDPR, SOX and more. Plus an FAQ.

Resolving Elasticsearch 9.0.1 Upgrade Issues with Custom Plugin Compatibility

Resolving Elasticsearch 9.0.1 Upgrade Issues with Custom Plugin Compatibility

Daniel Gleim || 2026-07-14

If you want to to upgrade from Elasticsearch 8.x to 9.0, you need to understand how plugin compatibility works and what to do when things don't go as planned

Elasticsearch Snapshot Restore Fails Despite Setting index.blocks.write: A Version Compatibility Deep Dive

Elasticsearch 8 to 9 Snapshot Restore Fails? The 7.x-Origin Index Trap and the Fix That Worked

Daniel Gleim || 2026-06-17

This scenario highlights a subtle but important aspect of cross-version compatibility that caught one user off guard during their upgrade from 8.7.1 to 9.0.1

Fast tracking compliance in Elasticsearch using Search Guard

Fast-Tracking Compliance in Elasticsearch Using Search Guard

Daniel Gleim || 2026-06-11

Search Guard provides security and compliance features directly inside the Elastic stack-configurable, integrated, and designed for regulated environments.

SG 26 BlogHeader Secure Sovereign

Secure Isn't Sovereign: Why European Teams Are Rethinking Elasticsearch Encryption

Anja Glauch || 2026-05-21

You can be fully secure and only partially sovereign. Most EU teams running Elasticsearch today sit exactly there.

Elasticsearch Performance Secrets

Elasticsearch Performance Secrets: How to Add Enterprise-Grade Security Without Slowing Down Your Queries

Daniel Gleim || 2026-05-12

There is a persistent assumption that securing an Elasticsearch cluster means accepting slower queries. Search Guard FLX is designed to prove that wrong.

ReclaimYourTime

Reclaim Your Time and Stop Worrying About Disk Space

Daniel Gleim || 2026-04-16

Search Guard Automated Index Management (AIM) is designed to eliminate repetitive, time-consuming work that scales poorly with increasing data volumes

From Alert Fatigue to Actionable Intelligence

From Alert Fatigue to Actionable Intelligence: Turning Noise into Insight with Search Guard

Daniel Gleim || 2026-04-07

This blog post explains how SearchGuard's Signals offers effective tools to minimize irrelevant alerts and highlight meaningful issues

SG Feb26 Blog EPromo ELK Solution 02

The Multi-Tenant ELK Solution: Scale Your Clients, Not Your Infrastructure

Daniel Gleim || 2026-02-12

Search Guard’s multi-tenancy capabilities are designed to make it possible to securely operate shared ELK environments without compromising isolation or control

SG Oct25 Blog Signals

Search Guard Signals - Elasticsearch Alerting for Free

Daniel Gleim || 2025-11-19

SearchGuard Signals is a free alerting solution for Elasticsearch and Kibana that helps detect and notify you of events that require your attention.

SG July25 Blog SecurityFix

The 5-Minute Security Fix: How to Eliminate Your Elasticsearch's Biggest Vulnerabilities Today

Jochen Kressin || 2025-08-06

This post will walk you through the most common security gaps in Elasticsearch deployments and provide a quick-start guide to closing them.

SG June25 Blog X-Pack Pt4

From X-Pack to Search Guard: Part 4 - Document- and Field-Level Security

Jochen Kressin || 2025-07-16

In this article we'll focus on migrating Document Level Security (DLS) and Field Level Security (FLS) configurations from X-Pack to Search Guard

SG June25 Blog X-Pack Pt3

From X-Pack to Search Guard: Part 3 - Users

Jochen Kressin || 2025-07-08

In this part of our migration series, we'll focus on how to migrate users from Elasticsearch X-Pack's native realm to the Search Guard internal user database.

SG June25 Blog X-Pack Pt2

From X-Pack to Search Guard: Part 2 - Roles and Permissions

Jochen Kressin || 2025-06-23

This article shows how to migrate your custom roles from X-Pack Security to Search Guard, helping you maintain your access control structure

SG June25 Blog X-Pack Pt1

From X-Pack to Search Guard: Part 1 - TLS Setup

Jochen Kressin || 2025-06-12

This article describes how to migrate TLS Settings from X-Pack Security to Search Guard Security. Scale your cluster, not your cost!

Latest Press Release

Press: Search Guard Delivers Enterprise-Grade Data Security with Predictable Cost Savings

Anja Glauch || 2025-05-15

Datensicherheit auf Enterprise-Niveau für Elasticsearch, Made in Berlin. Encryption, RBAC, Audit Logging. Bis zu 70% weniger TCO als Elastic Platinum.

SG March25 Article Transition01

How to Transition from Elasticsearch Enterprise to SearchGuard Community Edition

Daniel Gleim || 2025-04-09

How to migrate from Elasticsearch Enterprise to the SearchGuard Community Edition to reduce costs without compromising on security features.

SG March25 Costs03

Are you using Elasticsearch? You are probably paying too much

Daniel Gleim || 2025-04-01

For users of Elasticsearch Enterprise, the free Search Guard Community Edition offers an excellent way to transition while retaining key security features.

SG Jan25 AGPL Licence

Understanding the AGPL License

In this blog, we’ll break down the key aspects of the AGPL, including its unique provisions, the concept of "copyleft," and the advantages and disadvantages.

SG Sep SolvingErrors Title Icons

Solving "Unable to Get Local Issuer Certificate" Errors with cURL

Jochen Kressin || 2024-10-29

How to solve the infamous "curl: (60) ssl certificate problem: unable to get local issuer certificate" when interacting with the Elasticsearch REST API

Reduce ElasticSearch Latency

Reduce Elasticsearch Search Latency and Optimize Search Performance

Jochen Kressin || 2024-05-21

In this article, we'll explore practical tips on how to reduce search latency and optimize search performance in Elasticsearch.

Common Elasticsearch Errors Blog pt2

Common Elasticsearch errors and how to solve them - part 2

Jochen Kressin || 2024-04-29

In this part of our blog post series, we’ll continue to talk about most common Elasticsearch errors and how to troubleshooting them.

Common Elasticsearch Errors Blog pt1

Common Elasticsearch Errors and How to Solve Them - Part 1

Jochen Kressin || 2024-04-24

In this blog post series, we’ll cover the most common Elasticsearch errors in detail and provide a step-by-step guide to troubleshooting them.

Blog Improve Elasticsearch Performance

10 Tips on How to Improve Your Elasticsearch Indexing Performance

Jochen Kressin || 2024-02-27

This blog explores ten expert tips for enhancing Elasticsearch indexing performance, crucial for optimizing data storage, search, and analysis capabilities in this powerful engine.

Elasticsearch Cost Optimizations

Elasticsearch Cost Optimization

Jochen Kressin || 2023-03-28

How to lower costs and TCO when running large Elasticsearch clusters, while maintaining optimal performance and reliability.

elasticsearch document level security

Elasticsearch Document-Level Security

Jochen Kressin || 2020-10-13

How to use Document-level Security to control access to documents in an Elasticsearch index based on a users role.

elasticsearch tls error messages

Common Elasticsearch TLS error messages

Jochen Kressin || 2020-09-22

How to debug common error messages when using TLS with Elasticsearch, Logstash, Beats and Search Guard.

Change Elasticsearch TLS certificates at runtime

Changing Elasticsearch TLS certificates at runtime

Jochen Kressin || 2020-07-27

How to change and reload any TLS certificate on a running Elasticsearch cluster without any downtime or rolling restart.

elasticsearch proxy authentication

Proxy authentication using TLS certificates

Aki Abramowski || 2020-02-24

The new Search Guard proxy authentication module for Elasticsearch and Kibana supports IP as well as TLS certificate authentication.

Log ingestion with Beats, Logstash and Search Guard

Paulo Melo || 2019-03-20

How to configure Search Guard with Elasticsearch log analytics tools like Beats and logstash to protect log data in your cluster.

Using Kerberos with Elasticsearch and Kibana

Cliff Stayley || 2019-01-16

How to setup Kerberos authentication for Elasticsearch and Kibana by using Search Guard, the enterprise security suite for Elasticsearch.

tls certificates introduction elasticsearch

An introduction to TLS certificates

Cliff Staley || 2018-10-08

Securing the Elasticsearch inter-node traffic with TLS is a must. This article gives an introduction to TLS certificates and how they work.

elasticsearch monitoring searchguard

Using X-Pack Monitoring with Search Guard

Cliff Staley || 2018-10-01

Search Guard comes with predefined roles that make it easy to use X-Pack Monitoring, Alerting and Machine Learning with Elasticsearch.

introduction to tls elasticsearch

An introduction to TLS

Jochen Kressin || 2018-08-20

This article explains the basics of TLS and why it is the best technology for securing and encrypting data in an Elasticsearch cluster at the moment.

Elasticsearch security proxy

Don’t rely on proxies for Elasticsearch security

Jochen Kressin || 2017-05-27

This article shows why using a proxy for implementing security for Elasticsearch is a bad idea, and why you should use Search Guard instead.

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Search Guard is a trademark of floragunn GmbH, registered in the U.S. and in other countries. Elasticsearch, Kibana, Logstash, and Beats are trademarks of Elasticsearch BV, registered in the U.S. and in other countries. Apache and Apache Lucene are trademarks of the Apache Software Foundation in the United States and/or other countries.