Hi,
I'm a complete newbie with wzdftpd and I'm not familiar with the
details FTP so please excuse me if this is a stupid question. I've
tried to find related exchanges in the mailing list archive but drew a
blank.
Server : SMP Debian 3.2.68-1+deb7u6 ; AMD64
wzdftpd 0.8.3-6.2
Default Debian configuration, with auth as
backend = /usr/lib/wzdftpd/backends/libwzd_plaintext.so > 124
If I connect to the server from another Debian machine using lftp, the
login works just fine. Wireshark shows:
lftp -> wzdftpd File Transfer Protocol (FTP)
client server USER jo\r\n
Request command: USER
Request arg: jo
lftp <- wzdftpd TCP Flags: 0x010 (ACK)
client server
lftp <- wzdftpd File Transfer Protocol (FTP)
client server 331 User jo okay, need password.\r\n
Response code: User name okay, need password (331)
Response arg: User jo okay, need password.
And all is well with the world.
However, when I try to make my wife's WanScan IP cammera connect I get
the following exchange:
wanscan -> wzdftpd File Transfer Protocol (FTP)
camera server SYST\r\n
Request command: SYST
wanscan <- wzdftpd TCP Flags: 0x010 (ACK)
camera server
wanscan <- wzdftpd File Transfer Protocol (FTP)
camera server 530 Invalid login sequence\r\n
Response code: Not logged in (530)
Response arg: Invalid login sequence
wanscan -> wzdftpd File Transfer Protocol (FTP)
camera server USER cjm\r\n
Request command: USER
Request arg: cjm
wanscan <- wzdftpd TCP Flags: 0x010 (ACK)
camera server
wanscan <- wzdftpd TCP Flags: 0x011 (FIN, ACK)
camera server
wanscan <- wzdftpd TCP Flags: 0x014 (RST, ACK)
camera server
wanscan -> wzdftpd TCP Flags: 0x011 (FIN, ACK)
camera server
wanscan <- wzdftpd TCP Flags: 0x004 (RST)
camera server
The FTP server never seems to acknowledge that user cjm is ok and to
proceed on to asking for a password. Neither does the server seem to
reject user cjm as being invalid. In fact, user cjm is perfectly
valid as can be seen when a different FTP client is used from the log
extract below.
>
> Nov 22 13:51:51 Sun Nov 22 13:51:51 2015 LOGIN: <client> (ip.addr) "cjm" "users" ""
> Nov 22 13:52:27 Sun Nov 22 13:52:27 2015 LOGOUT: <client> (ip.addr) "cjm" "users" ""
>
So now I'm a bit lost as to what to try next. If I'm doing something
wrong I'd be very grateful for any tips on how to correct my error, or
perhaps there is a server config. change I could make to work around
this issue. Any advice, suggestions, ... gratefully received.
Best regards,
Jo.
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