title: How to make nginx print full log for tcp stream
body: <p>I'm using nginx-1.11.8 with the following configuration.</p>
  
  <pre><code>stream {
  
      log_format  basic   '$time_iso8601 $remote_addr '
                          '$protocol $status $bytes_sent $bytes_received '
                          '$session_time $upstream_addr '
                          '"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';
  
      access_log      logs/stream.log  basic buffer=1k flush=5s;
  
      include *.stream.conf;
  }
  </code></pre>
  
  <p>Now I can only get IP and other unimportant stuff in the tcp log. There are some important information related to the IP in the tcp data packet that I want to know. What should I do to get the full tcp packet in the tcp log? Thanks in advance.</p>