The Nodegrid solution supports the IPsec tunnel configuration with a variety of options for host-to-host, host-to-site, site-to-site and road warrior settings. 
The Nodegrid node is directly exposed to the Internet. It is strongly recommended the device be secured. Built-in features include:
- Firewall configuration.
- Enable Fail-2-Ban.
- Change all default passwords with strong passwords.
- Disable services that are not required.