Port 1935: RTMP
Port 1935 is RTMP, the Real-Time Messaging Protocol originally built for Flash media streaming. It is still the standard port for pushing a live stream from broadcasting software into services like YouTube and Twitch before they transcode it for viewers.
| Port number | 1935 |
|---|---|
| Service | Real-Time Messaging Protocol |
| Protocol | TCP |
| Category | VoIP & streaming |
| Default encryption | No |
Frequently asked questions
What is port 1935 used for?
Port 1935 is RTMP, the Real-Time Messaging Protocol originally built for Flash media streaming. It is still the standard port for pushing a live stream from broadcasting software into services like YouTube and Twitch before they transcode it for viewers.
Is port 1935 TCP or UDP?
Port 1935 (RTMP) uses TCP.
Is port 1935 secure?
Port 1935 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 1935 on my firewall?
Only if you specifically need RTMP. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.