Environment Variables

LibreNMS allows certain settings to be set via the environment or through the .env file.

Database

Set the variables to connect to the database. The default values are shown below.

DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=librenms
DB_USERNAME=librenms
DB_PASSWORD=
DB_SOCKET=

A comma separated list of trusted reverse proxy IPs or CIDR.

For legacy reasons the default is '*', which means any proxy is allowed. '**' means trust any proxy up the chain.

APP_TRUSTED_PROXIES=192.168.1.0/24,192.167.8.20

Set the base url for generated urls.

This will be needed when using signed graph urls for alerting. It may be needed when using reverse proxies combined with a subdirectory.

Generally, LibreNMS will make correct URLs (especially if you have set up your proxy variables correctly)

APP_URL=http://librenms/

The user and group that LibreNMS should operate as. Group will default to the same as the user if unset.

LIBRENMS_USER=librenms
LIBRENMS_GROUP=librenms

Increases the amount of information shown when an error occurs.

WARNING: This may leak information, do not leave enabled.

APP_DEBUG=true