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Forum Discussion
FTP server using passive ports
Hello everybody. This is more of a network-question than a readynas one. I've just recently bought an Ultra 4 in an addition to my Duo. I've had, and still have the FTP service running at the Du...
I agree - and there really is no greater security risk anyway. Standard port usage is defined by IANA.
0-1023 - "System ports"
1024-49151 - "User ports"
49152-65535 - "Dynamic/Private ports"
The risk of using a system port is that it might interfere with another common (and perhaps essential) network service. For instance, if you tried to use port 53 you would interfere with DNS. It doesn't really impact security one way or another.
In this case, 443 is the standard port for HTTPS, there is no reason why the router shouldn't be able to use it.
0-1023 - "System ports"
1024-49151 - "User ports"
49152-65535 - "Dynamic/Private ports"
The risk of using a system port is that it might interfere with another common (and perhaps essential) network service. For instance, if you tried to use port 53 you would interfere with DNS. It doesn't really impact security one way or another.
In this case, 443 is the standard port for HTTPS, there is no reason why the router shouldn't be able to use it.
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