Secure Access DNS and Web – Client Sync Services
Required by devices or applications that are protected by Secure Access DNS or Web security. Includes Cisco Secure Client deployments with the Umbrella Roaming Security module.
| Domains | IP Ranges | Port/Protocol | Description |
|---|---|---|---|
| sync.hydra.opendns.com | 146.112.63.3 - 146.112.63.9 146.112.63.11 - 146.112.63.13 | 443/TCP | Syncing data |
The sync.hydra.opendns.com domain resolves to multiple IP addresses, all within the 146.112.63.0/24 IP range. We recommend that you add this entire range. The IP addresses for sync.hydra.opendns.com are Anycast and may change.