Hello,
I'm a little confused.. you wrote "wowza" in the subject but in your post you are referring to Nginx.
Which one is it?
Start by running:
# netstat -plnt |grep 1935
I assume you DO mean Nginx, which is provided by the kaltura-nginx package, which is fetched as a dependency when installing the kaltura-server package.
After making sure nginx is running and has a listener on port 1935 TCP, check if you can telnet to it from the machine you're trying to stream to, this can be done with:
# telnet $NGINX_HOST 1935
we can take it from there, based on the current situation.