FTPS file transfer sometime works, but sometime not

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andrewlim
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FTPS file transfer sometime works, but sometime not

#1 Post by andrewlim » 2018-12-13 09:50

Hi, I have 2 client which is using the same setting. One client got no problem at all, but another one can only successfully transfer file after try for few times. the file can be seen in the directory, but the content is empty. In the log file, i found that whenever it successfully transfer, "TLS connection for data connection" will be shown in between the BOLD sentence, but when the error happen, the log file will show as below. I tested in ftptest.net, here is the result: "Your server is working and assorted routers/firewalls have been correctly configured for explicit FTP over TLS as performed by this test. However there have been warnings about compatibility issues, not all users will be able to use your server", can you advise on it?



(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> Connected on port 15321, sending welcome message...
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> AUTH TLS
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> 234 Using authentication type TLS
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> TLS connection established
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> USER OTL
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> 331 Password required for otl
(000188) 12/13/2018 17:40:00 PM - (not logged in) (175.137.191.150)> PASS ***********
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> 230 Logged on
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> SYST
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> 215 UNIX emulated by FileZilla
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> FEAT
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> 211-Features:
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> MDTM
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> REST STREAM
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> SIZE
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> MLST type*;size*;modify*;
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> MLSD
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> AUTH SSL
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> AUTH TLS
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> PROT
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> PBSZ
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> UTF8
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> CLNT
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> MFMT
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> EPSV
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> EPRT
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> 211 End
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> CLNT WinSCP-release-5.11.1
(000188) 12/13/2018 17:40:00 PM - otl (175.137.191.150)> 200 Don't care
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> OPTS UTF8 ON
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> 202 UTF8 mode is always enabled. No need to send this command.
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> PBSZ 0
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> 200 PBSZ=0
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> PROT P
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> 200 Protection level set to P
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> PWD
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> 257 "/" is current directory.
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> TYPE I
(000188) 12/13/2018 17:40:01 PM - otl (175.137.191.150)> 200 Type set to I
(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> PASV
(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> 227 Entering Passive Mode (52,163,243,231,195,190)
(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> STOR DATA20181126.TXT
(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> 150 Opening data channel for file upload to server of "/DATA20181126.TXT"
(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> 426 Connection closed; aborted transfer of "/DATA20181126.TXT"

(000188) 12/13/2018 17:40:02 PM - otl (175.137.191.150)> disconnected.

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botg
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Re: FTPS file transfer sometime works, but sometime not

#2 Post by botg » 2018-12-13 12:31

The used client software is outdated, do you still experience this after updating the client software?

andrewlim
500 Command not understood
Posts: 2
Joined: 2018-12-13 09:18

Re: FTPS file transfer sometime works, but sometime not

#3 Post by andrewlim » 2018-12-14 08:19

i just updated the client software. But the error still happen. Anything else that i need to do on firewall side for both incoming and outgoing connection instead of allow the mentioned port like 990, 21 and the hosting IP?

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botg
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Re: FTPS file transfer sometime works, but sometime not

#4 Post by botg » 2018-12-14 08:21

Many more ports are needed. Please study our Network Configuration guide for a concise overview.

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