| Protocol | Port(s) | Destination | Purpose | | :--- | :--- | :--- | :--- | | TCP | 443 | *.teamviewer.com | Web login & authentication | | TCP | 5938 | *.teamviewer.com | Primary data channel | | TCP | 80 & 443 | master.teamviewer.com | Fallback & master routing |
Here is exactly how to configure your "TeamViewer Firewall Whitelist" to ensure flawless remote connections. Many guides tell you to just open port 5938. That works for home users, but in an enterprise environment, you need whitelisting . teamviewer firewall whitelist
You are whitelisting the destination , not the port. If you allow port 5938 to "Any" IP address, malware on your network could use that port to exfiltrate data to a bad server in Russia. | Protocol | Port(s) | Destination | Purpose
Whitelisting means telling your firewall: "Do not inspect, block, or question traffic coming from TeamViewer’s official servers. Let it pass immediately." You are whitelisting the destination , not the port