Server cant open client ports

droltr5 years ago

Hello to everyone,

I install on Qnap 1635, I try to connect with android phone local IP and Public IP. I made all the redirects on the modem, any firewall does not work. After the setup, i can reach 18082 port (it's mean port forwarding is fine) both local and public network IP. When look on qnap with SSH I only see 18082 ports is open, there is no other application to run and use on 5055.

Port 18082 is opened and can be accessed from both local and public IP addresses. However, no port other than 18082 appears open on the server.

Even if I try to edit the configuration file, the system does not work again, I have to install again.

How can I open port 5055 in Traccar config file? As soon as I edit config files, the server crashes.

droltr5 years ago

No firewall (hardware)
No firewall (software)
Static IP from ISP (no port sharing or etc.)
Qnap 1635 - 4.4.3.1381
Android 10

Steps:

  1. Setup
    Install traccar qpkg, no change.
    login with default admin
    add client with device ID
    Install android client, setup server ip and port
    port forwarding on modem for both port 5050 and 18082

  2. Open WebUi
    I can reach first page (conf and logs showing)
    I can reach management UI

  3. Troubleshooting
    on qnap sssh "lsof -i -P -n | grep java" there is only one port is opened "18082" and few diffrent port like 62012 - 63224 - 13114
    I can reach my ports on public IP and local IP.
    But server is not open client listen port 5055
    If i try to change any config file, 18082 is not responce anymore