Network Configuration Recommendations > Signaling Servers > Servers Required for All Configurations
  
Servers Required for All Configurations
These following table lists servers that are base requirements for all configurations and must be allowed.
To make sure you’re ready to use Vuforia Chalk, visit the network diagnostics page and click Run Tests.
CAUTION:
 
Required Servers
Server Type
cognito-idp.us-west-2.amazonaws.com
Authentication
chalkusageservice.prod.look.vuforia.com
Chalk Cloud
accountapi.prod.look.vuforia.com
Chalk Cloud
connect.vuforia.com
Note:
 
*This host is used with Chalk for Desktop. If your account is not entitled to this, it is not needed.
Chalk Cloud
vuforiachalk.com
Note:
 
*This is an upcoming host name change used with Chalk for Desktop. If your account is not entitled to this, it is not needed.
Chalk Cloud
portalapi.prod.look.vuforia.com
Chalk Cloud
smartproxy.prod.look.vuforia.com
Chalk Cloud
loginservice.prod.look.vuforia.com
Chalk Cloud
switchboard.prod.look.vuforia.com
Chalk Cloud
otc.prod.look.vuforia.com
Chalk Cloud
usageservice.prod.vuforia.com
Chalk Cloud
mobile-endpoint.twilio.com
Audio/Video
global.vss.twilio.com
Audio/Video
sdkgw.us1.twilio.com
Audio/Video
Note:
 
*Server hosts that start with smartproxy handle the annotations made during sessions. During the session initiation, a different server is chosen based on the client location; therefore, for best performance, these hosts should have the shortest path achievable in the network, and should avoid things like stateful packet inspection (SPI).