DOS ain't dead

MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver (Users)

posted by Arjay, 20.07.2010, 13:08
(edited by Arjay on 20.07.2010, 13:40)

> I cannot reach this point with Total Commander neither.
I have received the initial connect from 2 different connections several times over without any major problems, to be honest I didn't try logging in any further.

I did also wonder if Laaca's firewall is probably doing packet inspection as when I dropped a connection and tried again too soon my connection was denied access, so I waited 30 seconds tried again and all was ok. Either that or I was just seeing the known connection bugs in the old version he is running which is one of the reasons I have suggested he ditches that version asap.

> I don't get back any response from the server (from here/Hungary)...
Matav RIP :( Have you tried with netcat? At the least you should get the following:

q:\>nc ftp.laaca.borec.cz 21
220 ftp server ready
421 Login Timeout (30 seconds): closing control connection.
q:\>

Note: However the above quick test wasn't done using a DOS version of NetCat, however for anyone reading this unfamilar with it there are several Variants, e.g:
Busybox (Linux),
GNU Netcat (Linux)
Win32 version (Win32 programmers blog notes)
Win32 MinGW version
etc.

Mike (Brutman) has also released a new DOS port as part of mTCP, the background of which can be found here: http://brutman.com/mTCP/mTCP_Netcat.html. Mike's version can be downloaded with mTCP.

As Mike points out on his page you can pretty much do anything with NetCat, e.g. like Mike I've used it to send emails but have also used it to connect to more complex protocols such as FTP and IRC. FTP is straight forward but I'd not recommend IRC as that is a bit like writing a long document in debug - yes you can but there are far easier tools ;) Still like debug, netcat is extremely useful especially when trying to track down or recreate networking / telnet based protocol (SMTP, FTP etc) issues. Unfortunately though some anti-virus software incorrectly (in my view) flag up netcat as being malicious, so just be aware of this if you've never downloaded/used it before.

Complete thread:

• SWSsock - Laaca, 09.06.2010, 23:24 (Users)
  • SWSsock - see also SwsMtc / SimUtil / ScUtil - support DOS32 - Arjay, 12.06.2010, 14:45
    • SWSsock - see also SwsMtc / SimUtil / ScUtil - support DOS32 - RayeR, 13.06.2010, 01:17
  • SWSsock - RayeR, 13.06.2010, 02:45
  • SWSsock - Mpxplay, 18.06.2010, 14:27
    • SWSsock - Laaca, 19.06.2010, 11:56
      • SWSsock - Mpxplay, 28.06.2010, 22:37
        • SWSsock - Laaca, 29.06.2010, 05:22
        • SWSsock - DOS386, 29.06.2010, 15:34
          • SWSsock - Mpxplay, 30.06.2010, 09:43
            • SWSsock - MPXPLAY - DOS386, 30.06.2010, 16:50
          • SWSsock - Laaca, 02.07.2010, 21:49
            • SWSsock - Mpxplay, 04.07.2010, 21:30
              • SWSsock - Mpxplay, 05.07.2010, 16:23
                • SWSsock - Mpxplay, 09.07.2010, 23:01
            • SWSsock - Mpxplay, 12.07.2010, 12:47
              • MPXplay with SWSsock - Laaca, 14.07.2010, 00:34
                • MPXplay with SWSsock - DOS386, 14.07.2010, 03:57
                • MPXplay with SWSsock - Mpxplay, 14.07.2010, 11:06
                  • MPXplay with SWSsock - Laaca, 14.07.2010, 22:49
                • MPXplay with SWSsock - Mpxplay, 19.07.2010, 23:18
                  • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Arjay, 20.07.2010, 10:32
                    • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Mpxplay, 20.07.2010, 12:37
                      • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Arjay, 20.07.2010, 13:08
                        • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Mpxplay, 20.07.2010, 19:49
                          • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Arjay, 20.07.2010, 20:54
                          • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Laaca, 25.07.2010, 12:10
                            • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Mpxplay, 25.07.2010, 21:21
                              • 1.57 beta 6.5 2010-07-25 - DOS386, 26.07.2010, 02:14
                                • 1.57 beta 6.5 2010-07-25 - FYI: it works :-) - DOS386, 27.07.2010, 03:07
                                  • 1.57 beta 6.5 2010-07-25 - FYI: it works :-) - Mpxplay, 27.07.2010, 08:41
                                    • 1.57 beta 6.5 2010-07-25 - FYI: it works :-) - DOS386, 28.07.2010, 03:32
                                      • 1.57 beta 6.5 2010-07-25 - FYI: it works :-) - Mpxplay, 28.07.2010, 19:49
                            • MPXplay with SWSsock ic.cz issue due to obsolete ProFTPD ver - Mpxplay, 20.08.2010, 01:30
        • SWSsock - RayeR, 01.07.2010, 02:59
          • SWSsock - Mpxplay, 01.07.2010, 05:21
  • SWSsock - mbbrutman, 20.07.2010, 23:10