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You can stream a video file from an Ubuntu server on Hetzner Cloud to YouTube Live by creating an encoder stream in YouTube Studio, using FFmpeg to send the file over YouTube’s RTMPS ingest URL, and supervising FFmpeg with systemd. The server can keep running after you disconnect from SSH, but a restart policy is not a guarantee of uninterrupted YouTube ingest: test the stream, monitor its health, and check recovery before relying on it.
This guide covers a cloud-hosted file source, not a camera feed. Hosting on Hetzner does not by itself establish the best route to YouTube or the best viewer experience in India; measure the stream’s outbound path and check playback from the locations that matter to your audience.
What you need before you start
- A Hetzner Cloud Ubuntu server with enough CPU capacity for your chosen encoding settings and reliable outbound bandwidth.
- A video file accessible to the server, for example under
/srv/stream/. - A YouTube channel with access to YouTube Studio’s Live Control Room.
- An FFmpeg build that supports the required RTMPS protocol and, if you use the example below, the
libx264encoder. - A way to keep the stream key secret and a plan to monitor the stream after it starts.
The commands and service file below are examples, not a tested configuration. Check the package names, service behavior, FFmpeg build, and URL format on your selected Ubuntu release and server.
Create a YouTube Live encoder stream
- Open YouTube Studio. Choose
Create > Go Liveand create or schedule an encoder stream in Live Control Room. - Copy the ingest URL and stream key. Find them under Stream settings. For encrypted ingest, reveal and copy the RTMPS URL using YouTube’s lock control. YouTube recommends RTMPS; do not substitute a guessed server URL or assume every channel displays the same URL shape.
- Protect the key. Treat it like a password. Do not paste a real key into a shared terminal, shell history, screenshots, public logs, or source control. If you think it has been exposed, reset it using YouTube’s stream-key controls.
- Keep Live Control Room open for the first test. You will use its preview and stream-health indicators to confirm that YouTube is receiving the signal.
Choose a resolution, bitrate, and keyframe interval
YouTube lists RTMP and RTMPS as supported ingest protocols and H.264, H.265/HEVC, and AV1 as video ingestion codecs. For a conventional CPU-based FFmpeg setup, H.264 is a straightforward choice if the installed build includes libx264.
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| Output target | YouTube-recommended H.264 bitrate | YouTube-listed minimum H.264 bitrate |
|---|---|---|
| 1080p at 30 fps | 10 Mbps | 5 Mbps |
| 720p at 30 fps | 6 Mbps | 3 Mbps |
These figures are from YouTube Help’s encoder-settings guidance accessed October 3, 2026; the page does not state a publication year. YouTube recommends constant bitrate (CBR), a two-second keyframe interval, and a maximum interval of four seconds. Choose a lower resolution or bitrate if the server’s CPU or measured outbound capacity cannot sustain the target.
Bandwidth in the relevant direction is outbound from the server. A download-speed test does not establish that upload capacity is sufficient or stable. YouTube’s streaming tips recommend leaving 20% headroom and testing the stream. Allow for audio, transport overhead, and fluctuations as well as the video bitrate.
Install FFmpeg and check the build
On Ubuntu, the package manager is one possible installation route. Check the package available for your Ubuntu release and whether it includes the encoders and protocols you need rather than assuming every build is identical.
sudo apt update
sudo apt install ffmpeg
ffmpeg -version
ffmpeg -protocols
ffmpeg -encodersLook for RTMPS-related protocol support in the protocol list and libx264 in the encoder list if you intend to use the example command. If your installed build lacks a needed feature, select a suitable build for that Ubuntu release before proceeding. Do not put the stream key into diagnostic output you intend to share.
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Send and loop a video file with FFmpeg
FFmpeg’s documented real-time file pattern uses -re to read at the file’s natural rate and the FLV muxer for RTMP-style output. The example below adapts that pattern to an RTMPS destination and loops a file. It is an illustrative 30 fps configuration, not a universal command: confirm the source frame rate, dimensions, audio layout, encoder availability, actual keyframe interval, and the RTMPS URL syntax shown in your Live Control Room.
ffmpeg -re -stream_loop -1 -i /srv/stream/source.mp4
-c:v libx264 -preset veryfast -b:v 4500k -maxrate 4500k -bufsize 9000k
-g 60 -keyint_min 60 -sc_threshold 0 -pix_fmt yuv420p
-c:a aac -b:a 128k -ar 44100
-f flv "$YOUTUBE_RTMPS_URL/$YOUTUBE_STREAM_KEY"Set YOUTUBE_RTMPS_URL to the exact RTMPS URL copied from Live Control Room and YOUTUBE_STREAM_KEY to the key. This command’s 4.5 Mbps video target is an example, not a YouTube recommendation for every resolution. At 30 fps, a GOP of 60 frames corresponds to two seconds; if the source or output frame rate differs, adjust the GOP so the interval remains appropriate. The command encodes rather than simply passing through the source, so check CPU use and output health.
-stream_loop -1 repeats the input indefinitely, but it cannot make the end and beginning of a file match. A cut, black frame, or audio discontinuity may occur at the loop point. Check that the file decodes and has the audio and video you expect before leaving it running.
Keep credentials out of command lines that may be saved in shell history or exposed in process listings. One practical approach is a root-readable environment file and a system service that loads it; access controls and logging still matter. The example service below uses that approach, but the precise security policy is your responsibility.
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Keep FFmpeg running after SSH disconnects with systemd
Running FFmpeg in an SSH session ties the process to that session unless you deliberately detach it. A systemd service instead lets the operating system start FFmpeg at boot and restart it after a process exit. It does not ensure YouTube is reachable, repair an invalid file or key, or prevent repeated failures.
1. Store the settings in a protected environment file
Create a file such as /etc/ffmpeg-youtube.env with the exact ingest URL and key. Keep the value syntax compatible with systemd’s environment-file format; avoid adding shell-specific syntax unless you have confirmed it is supported.
sudo install -m 600 -o root -g root /dev/null /etc/ffmpeg-youtube.env
sudoedit /etc/ffmpeg-youtube.envYOUTUBE_RTMPS_URL=PASTE_THE_EXACT_RTMPS_URL_HERE
YOUTUBE_STREAM_KEY=PASTE_THE_PRIVATE_KEY_HEREDo not publish this file or include its contents in support logs. If the key has been exposed, reset it in YouTube before restarting the service.
2. Create a service unit
Save a unit such as /etc/systemd/system/youtube-ffmpeg.service. Replace the file path and encoding options for your source. Confirm that the chosen ExecStart syntax and FFmpeg binary path work on your system.
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[Unit]
Description=FFmpeg YouTube Live file stream
Wants=network-online.target
After=network-online.target
[Service]
Type=simple
EnvironmentFile=/etc/ffmpeg-youtube.env
ExecStart=/usr/bin/ffmpeg -re -stream_loop -1 -i /srv/stream/source.mp4 -c:v libx264 -preset veryfast -b:v 4500k -maxrate 4500k -bufsize 9000k -g 60 -keyint_min 60 -sc_threshold 0 -pix_fmt yuv420p -c:a aac -b:a 128k -ar 44100 -f flv ${YOUTUBE_RTMPS_URL}/${YOUTUBE_STREAM_KEY}
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.targetSystemd expands environment variables in the command; check the resulting command behavior carefully and do not expose it in logs or screenshots. If your RTMPS URL already contains a path separator or the key must be appended in a different form, follow the exact URL shape supplied by YouTube and validate it with a controlled test. Keep the unit and credential file readable only by administrators who need them.
3. Start it and inspect status and logs
sudo systemctl daemon-reload
sudo systemctl enable --now youtube-ffmpeg.service
sudo systemctl status youtube-ffmpeg.service
sudo journalctl -u youtube-ffmpeg.service -fUse the journal to diagnose errors, but check that no diagnostic output or copied command reveals the stream key. To stop the stream cleanly, run sudo systemctl stop youtube-ffmpeg.service. To prevent it starting at the next boot as well, disable the unit with sudo systemctl disable youtube-ffmpeg.service.
Test the stream before leaving it unattended
- Confirm the preview. In YouTube Live Control Room, wait for the incoming preview and check that picture and audio are correct.
- Check stream health. Review the health indicators and warnings in Live Control Room rather than relying only on a running FFmpeg process.
- Measure outbound capacity. Test from the server and judge sustained upload performance against the full stream bitrate with headroom. Repeat under the conditions in which the server will actually run.
- Run an extended test. Observe CPU load, memory, network stability, file playback, and YouTube health over a meaningful period before calling the setup unattended.
- Test recovery deliberately. Stop the FFmpeg process and confirm systemd restarts it; then test a server reboot and confirm the service returns. Verify the resulting YouTube preview and health state after each test.
- Re-test after changes. Repeat the checks after changing resolution, frame rate, encoder settings, server type, file, or network route.
YouTube notes that streams under 12 hours are automatically archived. Do not assume that a continuously running stream will be archived as one uninterrupted, indefinitely available video; check YouTube’s current live-stream behavior and your channel’s archive after a test.
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Hetzner documents native cloud-init auto-configuration for Cloud Networks on Ubuntu 22.04 or later, without extra software for that feature. Cloud Networks are for private network configuration; a simple public push to YouTube may not need one. This documentation does not establish that a particular server type has enough CPU for your encoding settings or that it has a good route to YouTube.
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No specific Hetzner location is established here as best for Indian viewers, and no region-specific latency, YouTube ingest route quality, server price, or uptime guarantee is established. The server-to-YouTube ingest path and YouTube-to-viewer playback path are different. Test ingest from the actual server and, where practical, check playback from intended audience locations. Do not assume that Indian viewers require the server to be in India or that a particular region is fastest without measurements.
Troubleshooting common failures
| Symptom | Likely checks and fixes |
|---|---|
| YouTube shows no incoming preview | Confirm the service is active, inspect its logs, verify the copied RTMPS URL and stream key, and check that the FFmpeg build supports the protocol. Ensure the key has not been reset or mistyped. |
| SSL or RTMPS connection error | Check that you copied the encrypted RTMPS URL from Live Control Room and that the installed build supports the required protocol. YouTube identifies port 443 as a troubleshooting option for SSL connection errors; confirm the server’s network policy allows the relevant outbound traffic. |
| Stream health reports bitrate or connection problems | Measure sustained outbound bandwidth, leave headroom, and lower output resolution or bitrate if necessary. Check for network fluctuations rather than treating a fast download result as proof of upload capacity. |
| FFmpeg exits immediately or systemd keeps restarting it | Inspect journalctl -u youtube-ffmpeg.service for missing files, unsupported encoders or protocols, malformed URL syntax, permission errors, or invalid options. Correct the cause before treating automatic restart as recovery. |
| Video is choppy or the server is overloaded | Check CPU usage and whether the chosen encoder can sustain the selected frame size and rate. Reduce the output target or choose a suitable encoding approach for the server; then re-check the preview and stream health. |
| Picture is present but audio is missing or wrong | Check the source’s audio tracks and the FFmpeg audio options. Test the file locally or with a controlled stream before relying on it continuously. |
| The picture or audio jumps at the loop point | -stream_loop -1 repeats the file but does not create a seamless transition. Choose media whose ending and beginning work together, or use a separate playlist/transition workflow designed for that purpose. |
| The stream stops after a reboot | Check that the unit is enabled, the file and environment file are present and readable, and network-online ordering behaves as expected on the selected Ubuntu release. Inspect service status and logs after reboot. |
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