Start, Stop, or Restart Tenable Security Center Director

Required User Role: Root user

When Tenable Security Center is installed, the required services are started by default.

To change the status of Tenable Security Center Director:

Log in to Tenable Security Center Director via the command line interface (CLI).
In the CLI in Tenable Security Center Director, run the following command to check the status of your Tenable Security Center Director:
Copy
```
# service SecurityCenter status
```
The system indicates whether Tenable Security Center Director is running or stopped.
Run one of the following commands to change the status of your Tenable Security Center Director:
- To start Tenable Security Center Director, run:
  Copy
```
# /bin/systemctl start SecurityCenter
```
- To stop Tenable Security Center Director, run:
  Copy
```
# /bin/systemctl stop SecurityCenter
```
- To restart Tenable Security Center Director, run:
  Copy
```
# /bin/systemctl restart SecurityCenter
```
If you are running Tenable Security Center Director 6.5.x or later with a managed PostgreSQL database on the same server, then run the following commands to start and stop the PostgreSQL database:
- To start the PostgreSQL database, run:
  Copy
```
# su -tns -c "/opt/sc/support/bin/pg_ctl -D opt/sc/data/postgresql/ -l /opt/sc/admin/logs/postgresql.log start"
```
- To stop the PostgreSQL database, run:
  Copy
```
# su -tns -c "/opt/sc/support/bin/pg_ctl -D opt/sc/data/postgresql/ stop"
```
Note: These commands assume the install path for the PostgreSQL database is /opt/sc/. Replace /opt/sc/ with your install path if necessary. For more information about managed PostgreSQL databases, see Connect an External PostgreSQL Server.