Network Exclusions
      The AppStream 2.0 management network range (198.19.0.0/16) and
      following ports and addresses should not be blocked by any
      security / firewall or antivirus solutions within AppStream 2.0
      instances.
    
Table 7 — Ports in AppStream 2.0 streaming instances security software must not interfere with
| Port | Usage | 
|---|---|
| 8300 | This is used for establishing the streaming connection | 
| 3128 | This is used for managing the streaming instance by AppStream 2.0 | 
| 8000 | This is used for managing the streaming instance by AppStream 2.0 | 
| 8443 | This is used for managing the streaming instance by AppStream 2.0 | 
| 53 | DNS | 
Table 8 — AppStream 2.0 managed service addresses security software must not interfere with
| Port | Usage | 
|---|---|
| 169.254.169.123 | NTP | 
| 169.254.169.249 | NVIDIA GRID License Service | 
| 169.254.169.250 | KMS | 
| 169.254.169.251 | KMS | 
| 169.254.169.253 | DNS | 
| 169.254.169.254 | Metadata |