Compare the problem before the products
Wazuh is usually introduced for endpoint-oriented security telemetry and related security workflows. Graylog is usually introduced for centralised log collection, search, processing, alerting, and operational log management. Both can receive and analyse security-relevant data, but they do not remove the need to decide what to collect and who responds.
Choose the first platform around the missing evidence and operating team. If the gap is managed endpoint visibility, agent lifecycle and endpoint rules matter. If the gap is centralising application, infrastructure, and network logs, input pipelines, stream design, storage, and query ownership matter.
Architecture and data paths
Wazuh planning includes agents, central manager services, indexer storage, dashboard roles, and enrollment. Graylog planning includes log inputs, processing pipelines, streams, index and retention behaviour, storage, and access. Map source-to-search paths for both; an agent or input that silently fails is a visibility gap.
Neither platform makes source logs meaningful automatically. Define timestamps, source identity, environment, parsing, sensitive fields, and retention before broad enrollment.
Map analyst and operator workflows
A Wazuh workflow may pivot from endpoint event to asset, user, process, rule, and response action. A Graylog workflow may pivot from a service symptom to parsed messages, fields, streams, dashboards, and alert conditions. Define who curates rules, pipelines, dashboards, and source onboarding.
A combined environment needs a stated boundary: what is sent where, which system is authoritative for an alert, how timestamps and asset IDs align, and who owns duplicated storage cost.
Use scenario-based selection
Select Wazuh first for a scoped endpoint-security programme with agent rollout, endpoint events, and security analyst ownership. Select Graylog first for a broad log-management need across applications and infrastructure where parsing and search are the immediate gaps.
For an illustrative service team that cannot answer why an API failed, a log pipeline and query workflow may be the first need. For a managed server fleet with no host-level visibility, agent onboarding may be the first need.
Decision table
Compare operating work as well as interface features.
| Area | Wazuh | Graylog |
|---|---|---|
| Primary planning unit | Endpoint and agent | Log source and input pipeline. |
| Main operational concern | Enrollment, rules, endpoint coverage | Parsing, streams, storage, source onboarding. |
| Typical evidence | Host and security telemetry | Centralised application, infrastructure, and network logs. |
| Shared concern | Retention, access, alerts, and response ownership | Retention, access, alerts, and response ownership. |
Practical questions
Can Graylog replace endpoint telemetry?
Only if the required endpoint data is reliably sent, parsed, retained, and useful to the intended workflow. It does not provide agent lifecycle by itself.
Can Wazuh replace all log management?
Treat that as a workload question. Inventory source formats, volume, search needs, retention, integrations, and operational owners before deciding.
How should migration work?
Move one source or endpoint cohort, compare searches and alerts, validate retention and access, then expand with a rollback path.
Make the choice testable
List data sources, endpoint coverage, evidence gaps, ownership, volume, and required queries.
Onboard a representative source or cohort, prove alert and investigation paths, and measure storage.
Review source health, retention, rules or pipelines, access, false positives, and upgrade needs.
Decision checks
Use a real incident question as the acceptance test.
Source coverage
The team can show which hosts and log sources provide usable evidence.
Query exercise
An operator can answer a representative investigation question within the planned retention window.
Ownership
Rules, pipelines, storage, access, and incident response have named owners.
