# Prerequisites and firewall rules The following prerequisites apply for Apptimized SafeBox: 1. Browsers: - Google Chrome with version 75.0 and above - Mozilla Firefox with version 60.0 and above - Apple Safari with version 12.0 and above - Microsoft Edge with version 83 and above 2. Enabled Java-script in browser 3. Endpoint PC or VM with access to the 80 and 443 port of box.apptimized.com host 4. Firewall white list:
**Component** **Description**
https://box.apptimized.com/ Address for access to Apptimized SafeBox
wss://rdp-gw-v2.apptimized.com Address for working with RDP connections in Apptimized SafeBox Granting permissions to communicate via WebSocket SSL protocol is needed
https://auth.apptimized.com/Address for single sign-on
https://admin.apptimized.com/Address for manage organization configurations
https://screenshots.api.apptimized.technology Address for screenshots storage
https://docs.apptimized.com/ Address for Apptimized user documentation
\*.chatlio.com Address for access to support chat widget
\*.swarm.apptimized.com Address for Apptimized SafeBox virtualization service. Granting privileges on wildcards subdomains is needed. Granting permissions to connect via RDP protocol is needed