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Maciej
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On our wavelength
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How to close internet facing FTP 21 port on Superhub?

2 weeks ago

Software Version   "V2.39.02"
Hardware Version   2.00

Just did a quick port scan and realized that FTP is wide open even when firewall settings are set to high. The state of the port is OPEN. Not even FILTERED.
 
No reason for that whatsoever, so how can I close the FTP port on my Superhub?

mELWZEs
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legacy1
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Alessandro Volta
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Re: How to close internet facing FTP 21 port on Superhub?

2 weeks ago - last edited 2 weeks ago

If you have a device saying open port 21 you still have a problem if you block it because something is running for port 21 that you don't know about.

Turn off one device at a time to find what has port 21 open.

If in router mode (which you should not be using for the SH1 but really use modem mode and your own router) go to port forwarding setting check you don't have 21 forwarded and disable UpnP then reboot.

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BQM, Test for outgoing ports and SSL/L2TP VPN test

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