listen on port 80

### Step 1: Please describe your environment

* ZeroNet version:0.6.2
* Operating system: Asustor 3.5.14
* Web browser:opera
* Tor status: not available
* Opened port: no
* Special configuration: none

### Step 2: Describe the problem:

I want to install zeronet on an nas asustor i can install it without problem but it cant listen port 80 and dont accede to the webui because there is no web browser on the nas

- Starting ZeroNet...
[21:27:42] - OpenSSL loaded, version: 0100020EF
[21:27:42] - Version: 0.6.3 r3542, Python 2.7.10 (default, Aug 19 2015, 09:18:54)
[GCC 4.6.3], Gevent: 1.3.5
[21:27:42] - Creating FileServer....
[21:27:42] - Creating UiServer....
[21:27:43] - Removing old SSL certs...
[21:27:43] - Starting servers....
[21:27:43] Ui.UiServer --------------------------------------
[21:27:43] Ui.UiServer Web interface: http://127.0.0.1:43110/
[21:27:43] Ui.UiServer --------------------------------------
[21:27:44] TorManager Connecting to Tor Controller 127.0.0.1:9051
[21:27:44] TorManager Starting self-bundled Tor, due to Tor proxy port 127.0.0.1:9050 check error: No connection
[21:27:45] ConnServer Checking port 11911 using portchecker.co...
[21:27:48] ConnServer [BAD :(] Port closed: Port 11911 is closed.
[21:27:48] ConnServer Trying to open port using UpnpPunch...
[21:27:50] ConnServer Checking port 11911 using portchecker.co...
[21:27:51] ConnServer [OK :)] Port open: Port 11911 is open.
^CShutting down...
[21:30:06] - Unhandled exception
None
KeyboardInterrupt
[21:30:07] ConnServer Closed port via upnp.
[21:30:07] - All server stopped

Start at the Ui.UiServer startup shown in the report, where the web interface binds to http://127.0.0.1:43110/. Review how the UI listen address and port are configured, including the NAS environment and port-80 access. Done means the web UI can be reached as intended from the NAS setup, with the relevant behavior covered or documented.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.