sudo apt-get install build-essential libpcre3 libpcre3-dev libssl-dev

mkdir ~/working
cd ~/working

sudo apt-get install unzip

tar -zxvf nginx-1.7.5.tar.gz
unzip master.zip

cd nginx-1.7.5

./configure --with-http_ssl_module --add-module=../nginx-rtmp-module-master

make
sudo make install

sudo wget https://raw.github.com/JasonGiedymin/nginx-init-ubuntu/master/nginx -O /etc/init.d/nginx
sudo chmod +x /etc/init.d/nginx
sudo update-rc.d nginx defaults

sudo service nginx start
sudo service nginx stop

sudo apt-add-repository ppa:jon-severinsson/ffmpeg
sudo apt-get update
sudo apt-get install ffmpeg

rtmp {
  server {
      listen 1935;
      chunk_size 4096;

      application live {
          live on;
          record off;
          exec ffmpeg -i rtmp://localhost/live/$name -threads 1 -c:v libx264 -profile:v baseline -b:v 350K -s 640x360 -f flv -c:a aac -ac 1 -strict -2 -b:a 56k rtmp://localhost/live360p/$name;
      }
      application live360p {
          live on;
          record off;
    }
  }
}

Field 1: rtmp://your.vultr.ip/live/
Field 2: stream-key-your-set

[_session startRtmpSessionWithURL:@"rtmp://192.168.86.246/live/" andStreamKey:@"test"];

rtmp://your.vultr.ip/live/stream-key-you-set