Are Multiple servers of the same type allowed in nginx.conf?

I am wondering if it is legal to have multiple servers of the same type. In my case, I need multiple rtmp servers
that service specific users. Rather than having multiple physical machines, I am thinking LXD containers would be nice to use. Each container has a media server.

I am using OBS on my PC (192.168.0.5) to stream rtmp. I am using a Vboxt PC VM 192.168.0.47 Ubuntu 16.04 to
host the two containers which are also Ubuntu 16.04.

So, initially I tried with only the push directive. That did not work as I was getting chunk size failures all over the place.
Apparently the rtmp module is not being supported any longer? Arun does not respond to my emails. This is a bummer!

But anyway, I'm thinking I can configure the OBS stream settings as such: rtmp://192.168.0.47:1935/LPC1,
or rtmp://192.168.0.47:1936/LPC2 and the rtmp will be routed to the proper container using iptables.

So now I am using iptables to forward incoming rtmp to specific containers. Here are the iptables commands:

iptables -t nat -A PREROUTING -p tcp -i enp0s3 --dport 1935 -j DNAT --to-destination 10.57.215.214 :1935
iptables -t nat -A PREROUTING -p tcp -i enp0s3 --dport 1936 -j DNAT --to-destination 10.57.215.247 :1935

This works for the first route....input port 1935 gets routed to the proper container port 1935.
However, if I try to stream to port 1936, it also gets routed to the first container rather than the second one.

Here is my .conf:


#user nobody;
worker_processes 2;

error_log logs/error.log;
error_log logs/error.log notice;
error_log logs/error.log info;
error_log logs/debug.log debug;

#pid logs/nginx.pid;


events {
worker_connections 1024;
}

rtmp {
server {
listen 1935;
ping 30s;
ping_timeout 10s;
chunk_size 4096;

application LPC1 {
live on;
# push rtmp://10.57.215.214:1935;

}
}
}

rtmp {
server {
listen 1936;
ping 30s;
ping_timeout 10s;
chunk_size 4096;

application LPC2 {
live on;
# push rtmp://10.57.215.247:1935;

}
}
}

And here is the netstat output. As you can see, both ports are being listened to:

sudo netstat -tulpn
[sudo] password for ray:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1011/sshd
tcp 0 0 0.0.0.0:1935 0.0.0.0:* LISTEN 5752/nginx
tcp 0 0 0.0.0.0:1936 0.0.0.0:* LISTEN 5752/nginx
tcp 0 0 10.57.215.1:53 0.0.0.0:* LISTEN 1481/dnsmasq
tcp6 0 0 :::22 :::* LISTEN 1011/sshd
tcp6 0 0 fd42:2bf8:ea23:1a35::53 :::* LISTEN 1481/dnsmasq
tcp6 0 0 fe80::78af:32ff:fe9e:53 :::* LISTEN 1481/dnsmasq
udp 0 0 10.57.215.1:53 0.0.0.0:* 1481/dnsmasq
udp 0 0 0.0.0.0:67 0.0.0.0:* 1481/dnsmasq
udp 0 0 0.0.0.0:68 0.0.0.0:* 823/dhclient
udp6 0 0 :::547 :::* 1481/dnsmasq
udp6 0 0 fd42:2bf8:ea23:1a35::53 :::* 1481/dnsmasq
udp6 0 0 fe80::78af:32ff:fe9e:53 :::* 1481/dnsmasq

Any idea why this is not working? Why is port 1936 going to 10.57.215.214 rather than 10.57.215.247?

Thanks, this is driving me crazy!

Ray