GetListing - SSL connection failed; session reuse required: see require_ssl_reuse option in vsftpd.conf man page

FTP OS: Unix

FTP Server: Vsftpd?

Computer OS: Windows 10

FluentFTP Version: 40.0.0

Framework: .NET 6

Hi - we have one more problem with an other specific FTP server - seems like we can connect through autoconnect - but GetListing throws: - any ideas?

Response: 522 SSL connection failed; session reuse required: see require_ssl_reuse option in vsftpd.conf man page
Status:   Disposing FtpSocketStream...
Unhandled exception. FluentFTP.FtpCommandException: SSL connection failed; session reuse required: see require_ssl_reuse option in vsftpd.conf man page
   at FluentFTP.FtpClient.GetListingInternal(String listcmd, FtpListOption options, Boolean retry)
   at FluentFTP.FtpClient.GetListing(String path, FtpListOption options)
   at FluentFTP.FtpClient.GetListing()
   at FluentFTPTest.FluentFTP_Error2() in C:\Users\martin\Desktop\Neuer Ordner (3)\FluentExample\Program.cs:line 22
   at Program.<Main>$(String[] args) in C:\Users\martin\Desktop\Neuer Ordner (3)\FluentExample\Program.cs:line 5

Logs :

# AutoConnect()

# AutoDetect(True, False)

# Connect()
Status:   Connecting to ***:21
Response: 220 Welcome
Command:  AUTH TLS
Response: 234 Proceed with negotiation.
Status:   FTPS Authentication Successful
Status:   Time to activate encryption: 0h 0m 0s.  Total Seconds: 0,1244353.
Command:  USER ***
Response: 331 Please specify the password.
Command:  PASS ***
Response: 230 Login successful.
Command:  PBSZ 0
Response: 200 PBSZ set to 0.
Command:  PROT P
Response: 200 PROT now Private.
Command:  FEAT
Response: 211-Features:
Response: AUTH TLS
Response: EPRT
Response: EPSV
Response: MDTM
Response: PASV
Response: PBSZ
Response: PROT
Response: REST STREAM
Response: SIZE
Response: TVFS
Response: UTF8
Response: 211 End
Status:   Text encoding: System.Text.UTF8Encoding+UTF8EncodingSealed
Command:  OPTS UTF8 ON
Response: 200 Always in UTF8 mode.
Command:  SYST
Response: 215 UNIX Type: L8
Status:   Listing parser set to: Unix

# SetWorkingDirectory("out")
Command:  CWD out
Response: 250 Directory successfully changed.

# GetListing(null, Auto)
Command:  PWD
Response: 257 "/out"
Command:  TYPE I
Response: 200 Switching to Binary mode.

# OpenPassiveDataStream(PASV, "LIST /out", 0)
Command:  PASV
Response: 227 Entering Passive Mode (192,168,3,13,129,177).
Status:   Connecting to ***:33201
Command:  LIST /out
Response: 150 Here comes the directory listing.
Status:   FTPS Authentication Successful
Status:   Time to activate encryption: 0h 0m 0s.  Total Seconds: 0,1404852.
+---------------------------------------+
-----------------------------------------
Status:   Disposing FtpSocketStream...

# CloseDataStream()
Response: 522 SSL connection failed; session reuse required: see require_ssl_reuse option in vsftpd.conf man page

[FanDjango]

@robinrodricks I have both a proftpd and a vsftpd server running here, SSL enabled, both are not configured to disable session reuse. As far as I know, both default to require session reuse. My FluentFTP test program successfully lists and downloads files with encryption active. This confuses me. I have read the threads concerning this - #347, as well as this, still confused, though.

[FanDjango]

Look like this one is fixed by using FluentFTP.GnuTls.

See: https://github.com/robinrodricks/FluentFTP/wiki/FTPS-Connection-using-GnuTLS