Findwall – Check If Your Provider Is Blocking You!

FindWall is Python script that allows to understand if your network provider is limiting your access to the Internet by blocking any TCP/UDP port. In order to perform this check FindWall needs to connect a public VPS of your property. FindWall performs the following actions:

1. Connects to the VPS via SSH
2. Opens a port in listening mode
3. Tries to connect to that port from the local machine
4. Closes the port

How do you use it?

To use FindWall you just need an account on a public VPS. The account must have root access if you want to test ports in the range 1-1024. The root account is also required to automatically install the tool nc to open ports.

$ pip install -r requirements
$ python findwall.py --help

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usage: findwall.py [-h] --ssh-host SSH_HOST [--ssh-port SSH_PORT] --ssh-username SSH_USERNAME [--ssh-password SSH_PASSWORD] [--ssh-key SSH_KEY] --ports PORTS [--udp] [--threads THREADS]

Check if someone is blocking you!

optional arguments:
  -h, --help            show this help message and exit
  --ssh-host SSH_HOST   Remote host
  --ssh-port SSH_PORT   Remote SSH port
  --ssh-username SSH_USERNAME
                        Remote SSH username
  --ssh-password SSH_PASSWORD
                        Remote SSH password
  --ssh-key SSH_KEY     SSH Private key
  --ports PORTS         Port range to scan (default: 1-1024)
  --udp                 Scan in UDP
  --threads THREADS     Number of threads

As an example:

$ python findwall.py --ssh-host 172.17.0.2 --ssh-port 22 --ssh-username test --ssh-password test --ports 8000-8010 --threads 3