Re: [twsocket] Access denied issue
> Could it be some kind of proxy at the clients end ? > > I've just tried connecting without using passivemode on my PC and I > don't get a rejection as you can see from the logs below. If the FTP server accepts your non-passive connection, that refused message would not appear to be server generated, so yes it looks like the client's NAT router or firewall is blocking workable FTP. My Sonicwalls do monitor FTP connections and drop them if they find something they don't like, that once happened several gigs into a virtual disk download when it found a password scanner tool it did not like and dropped the data connection. Such problems with FTP are most auto updaters use HTTP Angus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Access denied issue
> Thanks. slightly different if PassiveMode = FALSE, but no cigar :( > 09:13:40:776 LastResponse was : '502 Active FTP not allowed.' Unusual to see an FTP server specifically refuse non-passive connections, do you know what make? Unfortunately you won't get much further without seeing the actual FTP commands received by the server, as modified by the NAT router, and even then there is not much you can do. Maybe ask your client to try accessing a different public FTP server, like mine at ics.ftptest.org, to see if it all FTP servers are being blocked or just this one, I can look at the ICS FTP server logs. Angus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Access denied issue
Could it be some kind of proxy at the clients end ? This is what the server gives me when I manually login, which I'm assuming is the FTP software 220 ProFTPD 1.3.3a Server (My FTP server) I've just tried connecting without using passivemode on my PC and I don't get a rejection as you can see from the logs below. Unfortunately as this is part of my auto-update code, the FTP server's address is hard-coded in to the app, but if I need to I could compile a special build that logs on to your server - thanks for the offer of that. 17:43:18:646 Logging started 03/09/2013 17:43:18 17:43:18:646 Created FTP Client 17:43:18:646 in DoGetUpdateFiles 17:43:18:646 Attempting to connect to FTP 17:43:18:646 connect to ftp 17:43:19:021 Session Connected, error = 0 17:43:19:333 Request ConnectAsync Done. 17:43:19:333 StatusCode = 230 17:43:19:333 LastResponse was : '230 Anonymous access granted, restrictions apply' 17:43:19:333 No error 17:43:19:333 Attempting directory change to: /pub/HireTRACK NX/autoupdates/ 17:43:19:333 Recurse iteration0 17:43:19:333 recurse: /pub/HireTRACK NX/autoupdates/ 17:43:19:505 Request CwdAsync Done. 17:43:19:505 StatusCode = 250 17:43:19:505 LastResponse was : '250 CWD command successful' 17:43:19:505 No error 17:43:19:505 Directory is "" 17:43:19:505 Successfully Changed Folder 17:43:20:130 Request MlsdAsync Done. 17:43:20:130 StatusCode = 226 17:43:20:130 LastResponse was : '226 Transfer complete' 17:43:20:130 No error David On 03/09/2013 17:34, Angus Robertson - Magenta Systems Ltd wrote: Thanks. slightly different if PassiveMode = FALSE, but no cigar :( 09:13:40:776 LastResponse was : '502 Active FTP not allowed.' Unusual to see an FTP server specifically refuse non-passive connections, do you know what make? -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Access denied issue
Thanks. slightly different if PassiveMode = FALSE, but no cigar :( 09:13:40:776 Request MlsdAsync Done. 09:13:40:776 StatusCode = 502 09:13:40:776 LastResponse was : '502 Active FTP not allowed.' 09:13:40:776 Error = 502 (502 Active FTP not allowed.) 09:13:40:960 Request MlsdAsync Done. 09:13:40:960 StatusCode = 550 09:13:40:960 LastResponse was : '550 Access is denied.' 09:13:40:961 Error = 550 (550 Access is denied.) David On 03/09/2013 17:05, Angus Robertson - Magenta Systems Ltd wrote: I'm using the FTP client component in my app to login to my public FTP site and download some files. This seems to work well for almost all my customers, but one is getting a '550' access denied message. The error is happening with the MSLD command which needs to open a data connection, which is where there can be fun with NAT routers that need to change the data connection IP address. Worth reversing passive mode to see if that makes a difference. Angus -- David Rose Navigator Systems Ltd, Network Business Centre, 9 River Street Place, Julian Road, Bath BA1 2RS Main Tel: +44 (0)207 183 0011 Fax: +44 (0)1225 464984 Company Email: da...@navigator.co.uk (Private e-mail on request) CONFIDENTIALITY NOTICE The contents of this e-mail are confidential to the ordinary user of the e-mail address to which it was addressed and may also be privileged. If you are not the addressee of this e-mail you may not copy, forward, disclose or otherwise use it or any part of it in any form whatsoever. If you have received this e-mail in error please e-mail the sender by replying to this message. -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Access denied issue
> I'm using the FTP client component in my app to login to my public > FTP site and download some files. > This seems to work well for almost all my customers, but one is > getting a '550' access denied message. The error is happening with the MSLD command which needs to open a data connection, which is where there can be fun with NAT routers that need to change the data connection IP address. Worth reversing passive mode to see if that makes a difference. Angus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
[twsocket] Access denied issue
I'm using the FTP client component in my app to login to my public FTP site and download some files. This seems to work well for almost all my customers, but one is getting a '550' access denied message. Is this generated by the FTP server (in which case anyone have any suggestion as to why it should not like one particular anonymous login) or is it generated locally - where presumably a firewall or some such could be the cause ? From the log file on his machine I can see 09:26:11:191 Request CwdAsync Done. 09:26:11:191 StatusCode = 250 09:26:11:191 LastResponse was : '250 CWD command successful' 09:26:11:191 No error 09:26:11:191 Directory is "" 09:26:11:191 Successfully Changed Folder 09:26:11:360 Request MlsdAsync Done. 09:26:11:360 StatusCode = 550 09:26:11:360 LastResponse was : '550 Access is denied.' 09:26:11:360 Error = 550 (550 Access is denied.) whereas exactly the same part of the log on my test PC gives the following. The log files prior to the 550 are absolutely identical. 12:47:40:751 Request CwdAsync Done. 12:47:40:751 StatusCode = 250 12:47:40:751 LastResponse was : '250 CWD command successful' 12:47:40:751 No error 12:47:40:751 Directory is "" 12:47:40:751 Successfully Changed Folder 12:47:41:532 Request MlsdAsync Done. 12:47:41:532 StatusCode = 226 12:47:41:532 LastResponse was : '226 Transfer complete' 12:47:41:532 No error -- David Rose -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
