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You must be an admin to be able to update system configuration. Changes made to the system config requires the web sever and other services to restart. The following table shows what services need to be started based on what config parameters are changed.
| Parameter | Explanation | Web server | Impulse-http | Impulse-master | Impulse-worker |
| Enable SSL Access | Enable https | yes | no | no | no |
| HTTP(S) Port | http port number | yes | no | no | no |
| DB_HOST | Leave default unless the web console db is hosted outside the machine the application server is hosted in | yes | no | no | no |
| EMAIL_HOST | SMTP host name | yes | no | no | no |
| EMAIL_PORT | SMTP Port. | yes | no | no | no |
| EMAIL_HOST_USER | SMTP authorized username | yes | no | no | no |
| EMAIL_HOST_PASSWORD | SMTP authorized user password | yes | no | no | no |
| SENDER_EMAIL | All emails will be sent by this sender_email | yes | no | no | no |
| MOMENTUM_INTEGRATION | True/False to indicate whether Momentum is installed and used with Impulse | yes | no | no | no |
| MOMENTUM_API_URL | If Momentum is integrated, provide the Momentum API URL with port number | yes | no | no | no |
| IMPULSE_DB_URL | URL with port number of the impulse-http server. | yes | no | no | no |
| IMPULSE_DB_SYS_USER | This is the default admin user of the impulse database | yes | yes | yes | yes |
| IMPULSE_DB_SYS_PASS | Password of the default admin | yes | yes | yes | yes |
| IMPULSE_INDEX_DML_URL | URL with port number of Impulse-master server | yes | no | no | no |
| IMPULSE_AUTH_URL | URL with port number of Impulse-master server | yes | no | no | no |
| STORAGE_TYPE | supported storage type: hdfs, s3, gc and local | yes | yes | yes | yes |
| BUCKET | Bucket name in case of s3 and gc | yes | yes | yes | yes |
| STORAGE_PATH | Directory path inside the storage bucket of hdfs location | yes | yes | yes | yes |
| aws_access_key_id | S3 access key | yes | yes | yes | yes |
| aws_secret_access_key | S3 access password | yes | yes | yes | yes |