This is not a production config, this is from out lab environment. NGINX configuration to use as an MPEG-DASH edge caching system for use with Wowza Streaming Engine Live Streams. Ideally the caching zone should be entirely in ramfs or similar diskless filesystems.

nginx-mpeg-dash-caching.conf

user nginx;
worker_processes auto;
pid /var/run/nginx.pid;
worker_rlimit_nofile 1048576;

events {
    worker_connections 1048576;
    multi_accept on;
    use epoll;
}

http {

    # upstream
    upstream wowza {
      zone   backend 64k;
      ip_hash;
      
      # omitted for security reasons, change in accordance with your environment.
      server wowza.intra:1935;
    }

    # basic
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    server_tokens off;
    keepalive_timeout 300s;
    types_hash_max_size 2048;
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    # ssl
    ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver 8.8.4.4 8.8.8.8 valid=300s ipv6=off;
    resolver_timeout 10s;

    # logs
    log_format cache_st '$remote_addr - $upstream_cache_status [$time_local]  '
                    '"$request" $status $body_bytes_sent '
                    '"$http_referer" "$http_user_agent"';
    access_log /var/log/nginx/cache.log cache_st;
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    # gzip
    gzip on;
    gzip_disable "msie6";
    gzip_http_version 1.1;
    gzip_comp_level 6;
    gzip_types text/plain text/css application/json application/javascript text/javascript application/x-javascript text/xml application/xml application/xml+rss application/vnd.ms-fontobject application/x-font-ttf font/opentype font/x-woff image/svg+xml image/x-icon;

    # proxy
    proxy_redirect off;
    proxy_http_version 1.1;
    proxy_read_timeout 10s;
    proxy_send_timeout 10s;
    proxy_connect_timeout 10s;
    proxy_cache_path /var/cache/nginx/wowza_cache_temp use_temp_path=off keys_zone=wowza_cache_temp:10m max_size=20g inactive=10m;
    proxy_cache wowza_cache_temp;
    proxy_cache_methods GET HEAD;
    proxy_cache_key $uri;
    proxy_cache_valid 200 302 5m;
    proxy_cache_valid 404 3s;
    proxy_cache_lock on;
    proxy_cache_lock_age 5s;
    proxy_cache_lock_timeout 1h;
    proxy_ignore_headers Cache-Control;
    proxy_ignore_headers Set-Cookie;

    proxy_cache_use_stale updating;
    proxy_cache_background_update on;

    # default route
    server {
	      status_zone Wowza_Cache;
        listen 80 default_server;

        #listen 443 ssl default_server;
        #ssl_certificate /path/to/cert.crt;
        #ssl_certificate_key /path/to/cert.key;

        add_header X-Cache-Status $upstream_cache_status;

        # DASH Manifest
        location ~ "(?<cache_key>\/(ZAP|ZAPR)\/(\d{4})\.stream_[\d\w]+\/manifest)(_w\d+)?\.mpd$" {
          proxy_cache_key $cache_key;
          proxy_cache_valid 200 302 10s;
          proxy_pass http://wowza;
          proxy_set_header Host $host:$server_port;
        }

        # DASH Chunk
        location ~ "(?<cache_key>\/(ZAP|ZAPR)\/\d{4}\.stream_[\d\w]+\/chunk_ct(video|audio)_cfm4s_rid([\d\w]+)_(cs\d+|cinit))(_w\d+)?_mpd\.m4s$" {
          proxy_cache_key $cache_key;
          proxy_cache_valid 200 30s;
          proxy_pass http://wowza;
          proxy_set_header Host $host:$server_port;
        }
    }
}