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ftp wan

File transfer protocol.
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giorgosperi
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ftp wan

#1

Post by giorgosperi » 23 Sep 2017 02:09

FTP works fine LAN and WAN only on port 21. If i change to lets say port 50 it works LAN but not on WAN. Do you have any idea? Thank you in advance.

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b0ssman
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Re: ftp wan

#2

Post by b0ssman » 23 Sep 2017 06:51

the only reason to ever use ftp now is for anonymous access and then you want it to run on port 21.
trying to put ftp on port 50 suggests that you are trying to "hide" ftp. this is not very effective as simple portscans will find it.
furthermore ftp has now been labeled as insecure by default see:
https://www.theregister.co.uk/2017/09/1 ... _insecure/

think about using sftp or scp.
also making anything available from the outside requires constant monitoring and updating version of the software.
if you misconfigure anything it wont take long for someone to take advantage of it.
Nas4Free 11.1.0.4.4517. Supermicro X10SLL-F, 16gb ECC, i3 4130, IBM M1015 with IT firmware. 4x 3tb WD Red, 4x 2TB Samsung F4, both GEOM AES 256 encrypted.

giorgosperi
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Re: ftp wan

#3

Post by giorgosperi » 23 Sep 2017 16:06

i dont have it with anonymous access. Also i changed to 50 because i have a newer version of nas4free on 21 just i wanted also my previous ftp opened until i transfer everything on my new installation. Just its weird that is not working on a different port. Lets say that the provider is blocking 21 what you gonna do after?

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b0ssman
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Re: ftp wan

#4

Post by b0ssman » 24 Sep 2017 07:44

use a different port. try above 1024.
Nas4Free 11.1.0.4.4517. Supermicro X10SLL-F, 16gb ECC, i3 4130, IBM M1015 with IT firmware. 4x 3tb WD Red, 4x 2TB Samsung F4, both GEOM AES 256 encrypted.

giorgosperi
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Re: ftp wan

#5

Post by giorgosperi » 24 Sep 2017 16:42

the same. i tried 1028. Its opening the port. Its asking even for the authentication but after doesnt go through.

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Re: ftp wan

#6

Post by b0ssman » 24 Sep 2017 18:29

active or passive ftp?
Nas4Free 11.1.0.4.4517. Supermicro X10SLL-F, 16gb ECC, i3 4130, IBM M1015 with IT firmware. 4x 3tb WD Red, 4x 2TB Samsung F4, both GEOM AES 256 encrypted.

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Re: ftp wan

#7

Post by giorgosperi » 24 Sep 2017 18:41

i tried from the browser but i m gonna try also from filezilla.
this is what i m getting through filezilla
Error: The data connection could not be established: ECONNREFUSED - Connection refused by server

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Re: ftp wan

#8

Post by slonkos » 12 Nov 2018 18:47

I can not arrange access from the Internet to the NAS, at least for now just by FTP. There are no problems in the local network. And when accessing from outside, it gives an error 530 is denied access. Access to the folder is open completely, no restrictions. Logged in under different users, including root. The same problem with access from outside and on Plex and NextClod.
As for the equipment, I have two routers. One from the provider, the other one. The server is connected to the second. The corresponding ports are forwarded. Port open to server.
Previously, I just connected a hard disk via USB on the second router and redirected the port. Everything worked. Access via static IP.

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