Use OBS, FFmpeg, or any RTMP encoder:
Server: rtmp://azcpc3.online:1935/live
rtmp://azcpc3.online:1935/live
Stream Key: your-stream-key
your-stream-key
FFmpeg example:
ffmpeg -re -i video.mp4 -c:v libx264 -preset veryfast -c:a aac -f flv rtmp://localhost:1935/live/test