227 Entering Passive Mode Error using C# FtpWebRequest connecting to a IBM Mainframe

Question

Try to upload a file to an IBM Mainframe using FtpWebRequest give the 227 Entering Passive Mode error, using WinSCP console works just fine. I have visited all possible posts here on StackOverflow even this one that I asked my self a few years ago Use C# to FTP file to mainframe including dataset - Translate FTP script to FtpWebRequest code

Following are the C# code, the WinSCP script, and both logs.

C# Code:

        string user = "AXXXXXX";
        string pwd = "******";
        var serverUri = @"ftp://yyy.yy.yy.yy.yy/'AAAA.BBB.CCCC.DDDDD'";

        // Get the object used to communicate with the server.
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
        request.Credentials = new NetworkCredential(user, pwd);
        request.EnableSsl = true;
        request.UseBinary = false;
        request.Method = WebRequestMethods.Ftp.UploadFile;


        FileStream fs = File.OpenRead(@"D:\TEST.TXT");
        byte[] buffer = new byte[fs.Length];
        fs.Read(buffer, 0, buffer.Length);
        fs.Close();

        Stream ftpstream = request.GetRequestStream();
        ftpstream.Write(buffer, 0, buffer.Length);
        ftpstream.Close();

Winscp Script:

option batch on
option confirm off
open ftp://AXXXXXX:******@yyy.yy.yy.yy.yy:21 -explicittls
ASCII
cd /
cd 'AAAA.BBB.CCCC.DDDDD'
put D:\TEST4.TXT TEST4.TXT
bye

Here C# log

System.Net Information: 0 : [75372] FtpWebRequest#45004109::.ctor(ftp://yyy.yy.yy.yy.yy/'AAAA.BBB.CCCC.DDDDD')
System.Net Information: 0 : [75372] Current OS installation type is 'Client'.
System.Net Information: 0 : [75372] FtpWebRequest#45004109::GetRequestStream(Method=STOR.)
System.Net Information: 0 : [75372] RAS supported: True
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Created connection from 192.168.1.10:59723 to 207.192.50.50:21.
System.Net Information: 0 : [75372] Associating FtpWebRequest#45004109 with FtpControlStream#21454193
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [220-FTP 10:24:35 on 2022-09-21.
220-                          Warning!
220- This is a government Computer System and is the property of the
220-State of . Users have no expectation of privacy. Use
220- of this computer system is subject to monitoring or other review
220-  by the government operator or others. Unauthorized or improper
220-use of this system may result in administrative disciplinary action
220-               and civil and criminal penalties.
220-
220-      Use of this system constitutes consent to monitoring.
220 Connection will close if idle for more than 5 minutes.]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [AUTH TLS]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [234 Security environment established - ready for negotiation]
System.Net Information: 0 : [75372] TlsStream#58870012::.ctor(host=yyy.yy.yy.yy.yy, #certs=0, checkCertificateRevocationList=False, sslProtocols=None)
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [USER AXXXXXX]
System.Net Information: 0 : [75372] SecureChannel#60068066::.ctor(hostname=yyy.yy.yy.yy.yy, #clientCertificates=0, encryptionPolicy=RequireEncryption)
System.Net Information: 0 : [75372] Enumerating security packages:
System.Net Information: 0 : [75372]     Negotiate
System.Net Information: 0 : [75372]     NegoExtender
System.Net Information: 0 : [75372]     Kerberos
System.Net Information: 0 : [75372]     NTLM
System.Net Information: 0 : [75372]     TSSSP
System.Net Information: 0 : [75372]     pku2u
System.Net Information: 0 : [75372]     WDigest
System.Net Information: 0 : [75372]     Schannel
System.Net Information: 0 : [75372]     Microsoft Unified Security Protocol Provider
System.Net Information: 0 : [75372]     MSOIDSSP
System.Net Information: 0 : [75372]     Default TLS SSP
System.Net Information: 0 : [75372]     CREDSSP
System.Net Information: 0 : [75372] SecureChannel#60068066 - Left with 0 client certificates to choose from.
System.Net Information: 0 : [75372] SecureChannel#60068066::.AcquireClientCredentials, new SecureCredential() (flags=(ValidateManual, NoDefaultCred, SendAuxRecord, UseStrongCrypto), m_ProtocolFlags=(Zero), m_EncryptionPolicy=RequireEncryption)
System.Net Information: 0 : [75372] AcquireCredentialsHandle(package = Microsoft Unified Security Protocol Provider, intent  = Outbound, scc     = System.Net.SecureCredential2)
System.Net Information: 0 : [75372] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = (null), targetName = yyy.yy.yy.yy.yy, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
System.Net Information: 0 : [75372] InitializeSecurityContext(In-Buffer length=0, Out-Buffer length=181, returned code=ContinueNeeded).
System.Net Information: 0 : [75372] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = 849b40:858d40, targetName = yyy.yy.yy.yy.yy, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
System.Net Information: 0 : [75372] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=190, returned code=ContinueNeeded).
System.Net Information: 0 : [75372] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = 849b40:858d40, targetName = yyy.yy.yy.yy.yy, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
System.Net Information: 0 : [75372] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=ContinueNeeded).
System.Net Information: 0 : [75372] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = 849b40:858d40, targetName = yyy.yy.yy.yy.yy, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
System.Net Information: 0 : [75372] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=OK).
System.Net Information: 0 : [75372] Remote certificate: [Version]
  V3

[Subject]
  CN=yyy.yy.yy.yy.yy, O=Executive Office of the State of , L=, S=, C=US
  Simple Name: yyy.yy.yy.yy.yy
  DNS Name: yyy.yy.yy.yy.yy

[Issuer]
  CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US
  Simple Name: DigiCert Global G2 TLS RSA SHA256 2020 CA1
  DNS Name: DigiCert Global G2 TLS RSA SHA256 2020 CA1

[Serial Number]
  02A8DB5DE0952CAF2964D096035F8418

[Not Before]
  5/24/2022 8:00:00 PM

[Not After]
  6/25/2023 7:59:59 PM

[Thumbprint]
  4FE2A581DC2258EF5FB98C1E19BA41DBB070FF57

[Signature Algorithm]
  sha256RSA(1.2.840.113549.1.1.11)

[Public Key]
  Algorithm: RSA
  Length: 2048
  Key Blob: 30 82 01 0a 02 82 01 01 00 d3 f1 39 be d1 d5 28 1a fc c9 86 82 24 28 90 3c 53 a4 d4 75 7d a5 3c 76 4d 66 b3 ac b1 58 fd 55 b2 ca 4f 24 24 5c 39 81 1f ec 23 36 dc 85 13 53 b5 3a 63 84 2b a8 3b f1 84 88 47 0e 34 eb 7a a7 28 3d 67 20 4f bb bb 5c 42 87 b0 e0 e3 71 0a 26 96 2f f0 74 85 57 92 f1 2....
System.Net Information: 0 : [75372] SecureChannel#60068066 - Remote certificate has errors:
System.Net Information: 0 : [75372] SecureChannel#60068066 -    Certificate name mismatch.
System.Net Information: 0 : [75372] SecureChannel#60068066 - Remote certificate was verified as valid by the user.
System.Net Information: 0 : [75372] ProcessAuthentication(Protocol=Tls12, Cipher=Aes256 256 bit strength, Hash=Sha384 0 bit strength, Key Exchange=DiffieHellman 1024 bit strength).
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [331 Send password please.]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [PASS ********]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [230 AXXXXXX is logged on.  Working directory is "AXXXXXX.".]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [PBSZ 0]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [200 Protection buffer size accepted]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [PROT P]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [200 Data connection protection set to private]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [OPTS utf8 on]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [501 command OPTS aborted -- no options supported for utf8]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [PWD]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [257 "'AXXXXXX.'" is working directory.]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [TYPE A]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [200 Representation type is Ascii NonPrint]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Sending command [PASV]
System.Net Information: 0 : [75372] FtpControlStream#21454193 - Received response [227 Entering Passive Mode (207,192,33,30,195,108)]
System.Net Information: 0 : [75372] FtpWebRequest#45004109::(Releasing FTP connection#21454193.)
System.Net Error: 0 : [75372] Exception in FtpWebRequest#45004109::GetRequestStream - The remote server returned an error: 227 Entering Passive Mode (207,192,33,30,195,108)
..
   at System.Net.FtpWebRequest.SyncRequestCallback(Object obj)
   at System.Net.FtpWebRequest.RequestCallback(Object obj)
   at System.Net.CommandStream.Dispose(Boolean disposing)
   at System.IO.Stream.Close()
   at System.IO.Stream.Dispose()
   at System.Net.ConnectionPool.Destroy(PooledStream pooledStream)
   at System.Net.ConnectionPool.PutConnection(PooledStream pooledStream, Object owningObject, Int32 creationTimeout, Boolean canReuse)
   at System.Net.FtpWebRequest.FinishRequestStage(RequestStage stage)
   at System.Net.FtpWebRequest.GetRequestStream()
System.Net Error: 0 : [75372] Exception in AppDomain#33675143::UnhandledExceptionHandler - The remote server returned an error: 227 Entering Passive Mode (207,192,33,30,195,108)

WinSCP Log:

. 2022-09-20 16:27:13.865 --------------------------------------------------------------------------
. 2022-09-20 16:27:13.865 WinSCP Version 5.15.3 (Build 9730) (OS 10.0.19043 - Windows 10 Enterprise)
. 2022-09-20 16:27:13.865 Configuration: nul
. 2022-09-20 16:27:13.865 Log level: Normal
. 2022-09-20 16:27:13.865 Local account: XXXXX\xxxxx
. 2022-09-20 16:27:13.866 Working directory: D:\WinSCP
. 2022-09-20 16:27:13.866 Process ID: 20996
. 2022-09-20 16:27:13.866 Command-line: "D:\WinSCP\WinSCP.exe" /console=5.15.3 /consoleinstance=_59692_538 "/console" "/log=logfile.log" "/script=FTPSput.txt" "/ini=nul" 
. 2022-09-20 16:27:13.866 Time zone: Current: GMT-4, Standard: GMT-5 (Eastern Standard Time), DST: GMT-4 (Eastern Daylight Time), DST Start: 3/13/2022, DST End: 11/6/2022
. 2022-09-20 16:27:13.871 Login time: Tuesday, September 20, 2022 4:27:13 PM
. 2022-09-20 16:27:13.871 --------------------------------------------------------------------------
. 2022-09-20 16:27:13.871 Script: Retrospectively logging previous script records:
> 2022-09-20 16:27:13.871 Script: option batch on
< 2022-09-20 16:27:13.871 Script: batch           on        
> 2022-09-20 16:27:13.871 Script: option confirm off
< 2022-09-20 16:27:13.871 Script: confirm         off       
> 2022-09-20 16:27:13.871 Script: open ftp://AXXXXXX:***@yyy.yy.yy.yy.yy:21 -explicittls
. 2022-09-20 16:27:13.871 --------------------------------------------------------------------------
. 2022-09-20 16:27:13.871 Session name: AXXXXXX@yyy.yy.yy.yy.yy (Ad-Hoc site)
. 2022-09-20 16:27:13.871 Host name: yyy.yy.yy.yy.yy (Port: 21)
. 2022-09-20 16:27:13.871 User name: AXXXXXX (Password: Yes, Key file: No, Passphrase: No)
. 2022-09-20 16:27:13.871 Transfer Protocol: FTP
. 2022-09-20 16:27:13.871 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec
. 2022-09-20 16:27:13.871 Disable Nagle: No
. 2022-09-20 16:27:13.871 Proxy: None
. 2022-09-20 16:27:13.871 Send buffer: 262144
. 2022-09-20 16:27:13.871 UTF: Auto
. 2022-09-20 16:27:13.871 FTPS: Explicit TLS/SSL [Client certificate: No]
. 2022-09-20 16:27:13.871 FTP: Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]; HOST: Auto
. 2022-09-20 16:27:13.871 Session reuse: Yes
. 2022-09-20 16:27:13.871 TLS/SSL versions: TLSv1.0-TLSv1.2
. 2022-09-20 16:27:13.871 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2022-09-20 16:27:13.871 Cache directory changes: Yes, Permanent: Yes
. 2022-09-20 16:27:13.871 Recycle bin: Delete to: No, Overwritten to: No, Bin path: 
. 2022-09-20 16:27:13.871 Timezone offset: 0h 0m
. 2022-09-20 16:27:13.871 --------------------------------------------------------------------------
. 2022-09-20 16:27:13.874 Connecting to yyy.yy.yy.yy.yy ...
. 2022-09-20 16:27:13.910 Connected with yyy.yy.yy.yy.yy, negotiating TLS connection...
< 2022-09-20 16:27:13.960 220-FTP 16:27:14 on 2022-09-20.
< 2022-09-20 16:27:13.960 220-                          Warning!
< 2022-09-20 16:27:13.961 220- This is a government Computer System and is the property of the
< 2022-09-20 16:27:13.961 220-State of . Users have no expectation of privacy. Use
< 2022-09-20 16:27:13.961 220- of this computer system is subject to monitoring or other review
< 2022-09-20 16:27:13.961 220-  by the government operator or others. Unauthorized or improper
< 2022-09-20 16:27:13.961 220-use of this system may result in administrative disciplinary action
< 2022-09-20 16:27:13.961 220-               and civil and criminal penalties.
< 2022-09-20 16:27:13.961 220-
< 2022-09-20 16:27:13.961 220-      Use of this system constitutes consent to monitoring.
< 2022-09-20 16:27:13.961 220 Connection will close if idle for more than 5 minutes.
> 2022-09-20 16:27:13.961 AUTH TLS
< 2022-09-20 16:27:14.058 234 Security environment established - ready for negotiation
. 2022-09-20 16:27:14.271 Verifying certificate for "Executive Office of the State of " with fingerprint 4f:e2:a5:81:dc:22:58:ef:5f:b9:8c:1e:19:ba:41:db:b0:70:ff:57 and 19 failures
. 2022-09-20 16:27:14.271 Asking user:
. 2022-09-20 16:27:14.271 **The server's certificate is not known. You have no guarantee that the server is the computer you think it is.**
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Server's certificate details follow:
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Issuer:
. 2022-09-20 16:27:14.271 - Organization: DigiCert Inc, DigiCert Global G2 TLS RSA SHA256 2020 CA1
. 2022-09-20 16:27:14.271 - Location: US
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Subject:
. 2022-09-20 16:27:14.271 - Organization: Executive Office of the State of , sccb.its.state.nc.us
. 2022-09-20 16:27:14.271 - Location: US, , 
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Valid: 5/25/2022 12:00:00 AM - 6/25/2023 11:59:59 PM
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Fingerprint (SHA-1): 4f:e2:a5:81:dc:22:58:ef:5f:b9:8c:1e:19:ba:41:db:b0:70:ff:57
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Summary: Self-signed certificate in certificate chain. The error occurred at a depth of 3 in the certificate chain.
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Certificate was not issued for this server. You might be connecting to a server that is pretending to be "yyy.yy.yy.yy.yy".
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 If you trust this certificate, press Yes. To connect without storing certificate, press No. To abandon the connection press Cancel.
. 2022-09-20 16:27:14.271 
. 2022-09-20 16:27:14.271 Continue connecting and store the certificate? ()
. 2022-09-20 16:27:17.451 Using TLSv1.2, cipher TLSv1/SSLv3: DHE-RSA-AES256-GCM-SHA384, 2048 bit RSA, DHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(256) Mac=AEAD
. 2022-09-20 16:27:17.452 TLS connection established. Waiting for welcome message...
> 2022-09-20 16:27:17.452 USER AXXXXXX
< 2022-09-20 16:27:17.479 331 Send password please.
> 2022-09-20 16:27:17.479 PASS ********
< 2022-09-20 16:27:17.547 230 AXXXXXX is logged on.  Working directory is "AXXXXXX.".
> 2022-09-20 16:27:17.547 SYST
. 2022-09-20 16:27:17.571 Server is known not to support LIST -a
< 2022-09-20 16:27:17.571 215 MVS is the operating system of this server. FTP Server is running on z/OS.
> 2022-09-20 16:27:17.571 FEAT
< 2022-09-20 16:27:17.594 211- Extensions supported
< 2022-09-20 16:27:17.594  UTF8
< 2022-09-20 16:27:17.595  LANG en*
< 2022-09-20 16:27:17.595  AUTH TLS
< 2022-09-20 16:27:17.595  PBSZ
< 2022-09-20 16:27:17.595  PROT
< 2022-09-20 16:27:17.595 211 End
> 2022-09-20 16:27:17.595 OPTS UTF8 ON
< 2022-09-20 16:27:17.619 501 command OPTS aborted -- no options supported for UTF8
> 2022-09-20 16:27:17.619 PBSZ 0
< 2022-09-20 16:27:17.644 200 Protection buffer size accepted
> 2022-09-20 16:27:17.644 PROT P
< 2022-09-20 16:27:17.667 200 Data connection protection set to private
. 2022-09-20 16:27:17.667 Connected
. 2022-09-20 16:27:17.668 --------------------------------------------------------------------------
. 2022-09-20 16:27:17.668 Using FTP protocol.
. 2022-09-20 16:27:17.668 Doing startup conversation with host.
> 2022-09-20 16:27:17.669 PWD
< 2022-09-20 16:27:17.694 257 "'AXXXXXX.'" is working directory.
. 2022-09-20 16:27:17.694 Getting current directory name.
. 2022-09-20 16:27:17.694 Startup conversation with host finished.
< 2022-09-20 16:27:17.695 Script: Active session: [1] AXXXXXX@yyy.yy.yy.yy.yy
> 2022-09-20 16:27:17.696 Script: ASCII
< 2022-09-20 16:27:17.696 Script: transfer        ascii     
> 2022-09-20 16:27:17.697 Script: cd /
. 2022-09-20 16:27:17.697 Changing directory to "/".
> 2022-09-20 16:27:17.697 CWD /
< 2022-09-20 16:27:17.722 250 HFS directory / is the current working directory
. 2022-09-20 16:27:17.722 Getting current directory name.
> 2022-09-20 16:27:17.722 PWD
< 2022-09-20 16:27:17.744 257 "/" is the HFS working directory.
< 2022-09-20 16:27:17.744 Script: /
> 2022-09-20 16:27:17.745 Script: cd 'AAAA.BBB.CCCC.DDDDD'
. 2022-09-20 16:27:17.745 Changing directory to "'AAAA.BBB.CCCC.DDDDD'".
> 2022-09-20 16:27:17.745 CWD 'AAAA.BBB.CCCC.DDDDD'
< 2022-09-20 16:27:17.776 250 "AAAA.BBB.CCCC.DDDDD." is the working directory name prefix.
. 2022-09-20 16:27:17.776 Getting current directory name.
> 2022-09-20 16:27:17.776 PWD
< 2022-09-20 16:27:17.801 257 "'AAAA.BBB.CCCC.DDDDD.'" is working directory.
< 2022-09-20 16:27:17.801 Script: /'AAAA.BBB.CCCC.DDDDD.'
> 2022-09-20 16:27:17.802 Script: put D:\TEST4.TXT TEST4.TXT
. 2022-09-20 16:27:17.802 Copying 1 files/directories to remote directory "/'AAAA.BBB.CCCC.DDDDD.'" - total size: 51
. 2022-09-20 16:27:17.802   PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: No; Mask: TEST4.TXT
. 2022-09-20 16:27:17.802   TM: A; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; EncryptNewFiles: Yes; ExcludeHiddenFiles: No; ExcludeEmptyDirectories: No; InclM: ; ResumeL: 0
. 2022-09-20 16:27:17.802   AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2022-09-20 16:27:17.802 File: 'D:\TEST4.TXT' [2022-09-20T04:00:00.000Z] [51]
. 2022-09-20 16:27:17.803 Copying "D:\TEST4.TXT" to remote directory started.
. 2022-09-20 16:27:17.803 Ascii transfer mode selected.
. 2022-09-20 16:27:17.803 Starting upload of D:\TEST4.TXT
> 2022-09-20 16:27:17.803 TYPE A
< 2022-09-20 16:27:17.826 200 Representation type is Ascii NonPrint
> 2022-09-20 16:27:17.826 PASV
< 2022-09-20 16:27:17.849 227 Entering Passive Mode (207,192,33,30,195,118)
> 2022-09-20 16:27:17.849 STOR TEST4.TXT
. 2022-09-20 16:27:17.849 Connecting to 207.192.33.30:50038 ...
< 2022-09-20 16:27:17.936 125 Storing data set AAAA.BBB.CCCC.DDDDD.TEST4.TXT
. 2022-09-20 16:27:17.959 Session ID reused
. 2022-09-20 16:27:17.960 Using TLSv1.2, cipher TLSv1/SSLv3: DHE-RSA-AES256-GCM-SHA384, 2048 bit RSA, DHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(256) Mac=AEAD
. 2022-09-20 16:27:17.961 TLS connection established
< 2022-09-20 16:27:18.005 250 Transfer completed successfully.
. 2022-09-20 16:27:18.005 Upload successful
. 2022-09-20 16:27:18.006 Transfer done: 'D:\TEST4.TXT' => '/'AAAA.BBB.CCCC.DDDDD.'/TEST4.TXT' [51]
. 2022-09-20 16:27:18.006 Copying finished: Transferred: 51, Elapsed: 0:00:00, CPS: 653/s
> 2022-09-20 16:27:18.006 Script: bye
. 2022-09-20 16:27:18.006 Script: Exit code: 0
. 2022-09-20 16:27:18.011 Disconnected from server