What the port of NaCl gdb is and how to change it ?

[Maigx liN]

Hello guys, I am a new nacl developer,i try to debug nacl application follow offical document like this:

1. chrome://flags/ to enable-nacl  and enable-nacl-debug

2. in naclsdk find x86_64_gdb.exe and execute it

3. --no-sandbox http://localhost:$(NaClWebServerPort)/$(NaClIndexHTML) --user-data-dir="$(ProjectDir)/chrome_data" --enable-nacl --enable-nacl-debug --disable-hang-monitor

4. https://www.chromium.org/nativeclient/how-tos/debugging-documentation/debugging-with-debug-stub-recommended/getting-started-with-debug-stub

5. my nacl content server start like localhost:5013 by naclsdk\pepper_x\example\httpd.cmd

but when i begin use "target remote :4014", gdb is not work.

i type netstat -an|find "TCP" and i can't find 4014

Can any god help me ?