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Question : Serv-U 5.x FTP Server <-> SmartFTP Client using SSL?
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Hello, I'm trying to connect to a Serv-U 5.x FTP server using SmartFTP's implicit SSL. The server is running Windows XP Pro SP2.
The server uses port 21 (port forwarding on the remote network forwards port 21 to the FTP server on its LAN; the LAN is handled by a DSL router which uses NAT), and I can connect and authenticate fine (encryption keys are exchanged, etc.) but as soon as I try to download a directory listing, I get a connection closed while in Active mode, or a timeout while in Passive mode.
Here's what I see in SmartFTP:
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SmartFTP v1.5.990.11
Resolving host name "myhost.org"
Connecting to 1.2.3.4 Port: 21
Connected to myhost.org.
Connected. Exchanging encryption keys...
Session Cipher: 128 bit RC4
TLS encrypted session established.
220 Ready...
USER myusername
331 User name okay, need password.
PASS (hidden)
230 User logged in, proceed.
SYST
215 UNIX Type: L8
TYPE I
200 Type set to I.
REST 0
350 Restarting at 0. Send STORE or RETRIEVE.
PWD
257 "/" is current directory.
CWD /
250 Directory changed to /
PWD
257 "/" is current directory.
PBSZ 0
200 PBSZ command OK. Protection buffer size set to 0.
PROT P
200 PROT command OK. Using private data connection.
PORT 192,168,21,34,6,121
200 PORT Command successful.
LIST -a
150 Opening ASCII mode data connection for /bin/ls.
426 Data connection closed, transfer aborted.
Automatic failover of data connection mode from "Active Mode (PORT)" to "Passive Mode (PASV)".
PASV
227 Entering Passive Mode (192,168,123,97,7,168)
Opening data connection to 1.2.3.4 Port: 1960
LIST -a
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Timeout (240s).
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Answer : Serv-U 5.x FTP Server <-> SmartFTP Client using SSL?
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Closed, 500 points refunded.
modulo
Community Support Moderator
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