System Settings

System Settings holds the options that apply to your whole GridNMS installation, grouped into tabs. Open it from Configure → System Configuration and remember to Save Changes after editing a tab.

Site

Basic identity and contact information for this installation — the name shown in the interface and an administrative contact. This is also where you set the access URL GridNMS uses when it builds links (for example, in notification emails).

Timezone & Time Sync

Controls how dates and times are displayed across the interface, and keeps every part of the system on the same clock.

Why time sync matters. GridNMS stamps every log, event, and metric with the time it happened. If different machines disagree about the current time, those stamps drift apart and it becomes hard to line events up or trust the order things happened in. To prevent that, GridNMS checks the current time against one or more NTP time servers and corrects its own clock — and pushes the same setting out to all of your collectors automatically, so everything agrees.

• The default time server works for most installations.
• For a network with no internet access, point this at an internal NTP server on your own network instead. Time sync still works.

Event Suppression

A short cooldown that stops a single flapping signal from creating a flood of near-identical events. Keep the cooldown shorter than how often the real condition recurs. For sustained or repeated flapping, Cases group the related events together so you get one place to look instead of many.

Passkeys

Passwordless sign-in using a device’s built-in authenticator (Face ID, Touch ID, Windows Hello) or a hardware security key. Enabling passkeys here lets your users register one from their own profile. See Users, Groups & Roles for how accounts work.

Single Sign-On (SSO)

Federate login with an external identity provider so users sign in with your organization’s existing accounts. Once configured, users authenticate through your provider instead of a separate GridNMS password.

Backup & Restore

Export your full configuration as a single portable file — devices, device classes, monitoring setup, and settings — so you can keep a snapshot or move it to another installation. Restore re-applies a saved snapshot.