No "resume" on SSL/TLS session

[Taomyn_2]

Is it documented anywhere that SSL/TLS connections do not support resume as I cannot get this to work.

This is a log from a restarted queue entry that stopped at 32Mb of 140Mb

WinSock 2.0
Connecting to ftp.dummy.tzo.com
Connected to ftp.dummy.tzo.com -> IP=XX.XX.XX.XX PORT=21
220 FTPServer Ready.
AUTH SSL
234 Security data exchange complete.
Negotiating SSL/TLS session...
SSL/TLS negotiation successful...
SSL/TLS connection using cipher EDH-RSA-DES-CBC3-SHA (168 bits)
PBSZ 0
200 Command OK. PBSZ=0
USER taomyn
331 User name okay, need password.
PASS (hidden)
230-Welcome taomyn from xx.xx.xx.xx. You are now logged into the server.
230 User logged in, proceed.
SYST
215 UNIX Type: L8
CWD /usr/fvc/C/Downloads/
250 Directory changed to "/usr/fvc/C/Downloads/"
PWD
257 "/usr/fvc/C/Downloads/" is current directory.
TYPE A
200 Type set to A.
PROT P
200 Encrypting Data Channel.
PASV
227 Entering Passive Mode (xx,xx,xx,xx,78,52).
LIST -al
Negotiating SSL/TLS session...
150 File status okay; about to open data connection.
SSL/TLS negotiation successful...
SSL/TLS connection using cipher EDH-RSA-DES-CBC3-SHA (168 bits)
226 Closing data connection. Transferred 938 bytes.
List Complete: 938 bytes in 2.04 (0.45 KBps)
TYPE I
200 Type set to I.
PASV
227 Entering Passive Mode (xx,xx,xx,xx,78,52).
RETR w2ksp4_en.exe
Negotiating SSL/TLS session...
150 Opening BINARY mode data connection for w2ksp4_en.exe (135477136 bytes).
SSL/TLS negotiation successful...
SSL/TLS connection using cipher EDH-RSA-DES-CBC3-SHA (168 bits)

It doesn't even try to resume?

* FlashFXP v[2].[1], build [924], [Registered]
* OS [Win2K]
* Running behind NAT/router [No]
* Running firewall [Yes], Name [Visnetic], Ver. [1.2.1]
* Running Antivirus [Yes], Name [McAfee v7]
* Network [Dail-Up - ISDN]

additional info if related
* FTP server(s) name [Visnetic], version [2.1]

[Linkster]

Have you tried it with other FTP servers? I have never heard of "visnetic". I'm pretty sure it does work...have you asked the developers of visnetic about it?

[Taomyn_2]

Originally posted by Linkster
Have you tried it with other FTP servers? I have never heard of "visnetic". I'm pretty sure it does work...have you asked the developers of visnetic about it?

Visnetic was bought by Deerfield (www.deerfield.com) a while back - it's not a bad Windows ftp server.

No I haven't tried another as it's the only secure ftp server I know of. If anyone can help out with a test of another secure ftp server, please let me know the details.

I can't see why it would be my ftp server as the log clearly shows that FlashFXP does not even bother to resume, it just does "RETR w2ksp4_en.exe" with no start point.

[Linkster]

well, i can confirm that resuming does work on both ioftpd and glftpd...it has to be a setting with your server.

[Taomyn_2]

Ok, it's not my server, but it's something strange with FlashFXP.

On one client I had the server in my Site Manager and it works just fine. The other client I'm having problems with I was just using the Quick Connect and the URL history - this one for some reason does not send the RETR 0 and RETR 100 commands at the start of the session.

There's no option that I can see for Quick Connect to specify use resume, so perhaps it's a bug with SSL/TLS when using Quick Connect.

At least I can get around it now

[Linkster]

hmm, i never use quick connect and tls...we'll look into this issue.

[Taomyn_2]

Another thing just happened.

I'd forgotten to save the password to the ftp server so when I left alone it bombed out and sat there asking for a password. So I entered it and lo-and-behold it resumed.

However, I amended the password in Site Manager whilst it was downloading, assuming that it would not take effect until I reconnected properly, and again it failed and was waiting on a password.

This time I came out of FlashFXP, went back in and reloaded the queue. it automatically logged in but didn't resume again