From: Jo M. <jo...@ma...> - 2015-11-22 17:47:38
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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. |