Comments (9)
sparkeh9
commented on September 14, 2024
What OS and .NET framework is your dev machine, and what type of environment are you trying to connect to? just so I can try to reproduce it :)
from coreftp.
synhaptein
commented on September 14, 2024
I reproduced it on linux (1.0.3), windows (1.0.3) and osx (1.0.0) on pureftpd
220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
211-Extensions supported:
EPRT
IDLE
MDTM
SIZE
MFMT
REST STREAM
MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;
MLSD
AUTH TLS
PBSZ
PROT
UTF8
TVFS
ESTA
PASV
EPSV
SPSV
211 End.
from coreftp.
nine-2-five
commented on September 14, 2024
I'm having this same issue.
from coreftp.
sparkeh9
commented on September 14, 2024
I'm looking into this issue. The current code works fine for most FTP servers (filezilla for example), but I've run into similar symptoms with ProFTPd running on CentOS.
There seems to be a problem with the TLS handshake for the data connection.
from coreftp.
ishchatul
commented on September 14, 2024
I have just run into this issue and it seems that with some servers the order of commands are as follows:
a. open data socket stream
b. send command on control stream
c. Activate encryption on data socket stream
Hope this helps
from coreftp.
Adjusted1
commented on September 14, 2024
I am having the "remote closed the transport stream" connecting to filezilla server.
@ishchatul : Did your abc technique work for CoreFtp?
from coreftp.
Adjusted1
commented on September 14, 2024
Another Core compat. ftp library gives me the same error (FluentFTP), maybe .Net Core has an issue here?
from coreftp.
mirkomaty
commented on September 14, 2024
Same Problem here, but I use .NET Framework 4.7.2. FileZilla works and gives me the following log:
2019-11-28 09:47:37 7744 1 Status: Resolving address of xername.your-backup.de
2019-11-28 09:47:37 7744 1 Status: Connecting to [1111:111:111:1111::1]:21...
2019-11-28 09:47:37 7744 1 Status: Connection established, waiting for welcome message...
2019-11-28 09:47:37 7744 1 Response: 220 ProFTPD Server (xxxx) [1111:111:111:1111::1]
2019-11-28 09:47:37 7744 1 Command: AUTH TLS
2019-11-28 09:47:37 7744 1 Response: 234 AUTH TLS successful
2019-11-28 09:47:37 7744 1 Status: Initializing TLS...
2019-11-28 09:47:37 7744 1 Status: Verifying certificate...
2019-11-28 09:47:37 7744 1 Status: TLS connection established.
2019-11-28 09:47:37 7744 1 Command: USER xername
2019-11-28 09:47:37 7744 1 Response: 331 Password required for xername
2019-11-28 09:47:37 7744 1 Command: PASS ****************
2019-11-28 09:47:37 7744 1 Response: 230 User xername logged in
2019-11-28 09:47:37 7744 1 Command: SYST
2019-11-28 09:47:37 7744 1 Response: 215 UNIX Type: L8
2019-11-28 09:47:37 7744 1 Command: FEAT
2019-11-28 09:47:37 7744 1 Response: 211-Features:
2019-11-28 09:47:37 7744 1 Response: AUTH TLS
2019-11-28 09:47:37 7744 1 Response: CCC
2019-11-28 09:47:37 7744 1 Response: CLNT
2019-11-28 09:47:37 7744 1 Response: EPRT
2019-11-28 09:47:37 7744 1 Response: EPSV
2019-11-28 09:47:37 7744 1 Response: HOST
2019-11-28 09:47:37 7744 1 Response: LANG ru-RU.UTF-8;ru-RU;zh-TW.UTF-8;zh-TW;ja-JP.UTF-8;ja-JP;zh-CN.UTF-8;zh-CN;bg-BG.UTF-8;bg-BG;es-ES.UTF-8;es-ES;it-IT.UTF-8;it-IT;ko-KR.UTF-8;ko-KR;en-US.UTF-8;en-US*;fr-FR.UTF-8;fr-FR
2019-11-28 09:47:37 7744 1 Response: MDTM
2019-11-28 09:47:37 7744 1 Response: MFF modify;UNIX.group;UNIX.mode;
2019-11-28 09:47:37 7744 1 Response: MFMT
2019-11-28 09:47:37 7744 1 Response: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.groupname*;UNIX.mode*;UNIX.owner*;UNIX.ownername*;
2019-11-28 09:47:37 7744 1 Response: PBSZ
2019-11-28 09:47:37 7744 1 Response: PROT
2019-11-28 09:47:37 7744 1 Response: REST STREAM
2019-11-28 09:47:37 7744 1 Response: SIZE
2019-11-28 09:47:37 7744 1 Response: SSCN
2019-11-28 09:47:37 7744 1 Response: TVFS
2019-11-28 09:47:37 7744 1 Response: UTF8
2019-11-28 09:47:37 7744 1 Response: 211 End
2019-11-28 09:47:37 7744 1 Command: CLNT FileZilla
2019-11-28 09:47:37 7744 1 Response: 200 OK
2019-11-28 09:47:37 7744 1 Command: OPTS UTF8 ON
2019-11-28 09:47:37 7744 1 Response: 200 UTF8 set to on
2019-11-28 09:47:37 7744 1 Command: PBSZ 0
2019-11-28 09:47:37 7744 1 Response: 200 PBSZ 0 successful
2019-11-28 09:47:37 7744 1 Command: PROT P
2019-11-28 09:47:37 7744 1 Response: 200 Protection set to Private
2019-11-28 09:47:37 7744 1 Status: Logged in
2019-11-28 09:47:37 7744 1 Status: Retrieving directory listing...
2019-11-28 09:47:37 7744 1 Command: PWD
2019-11-28 09:47:37 7744 1 Response: 257 "/" is the current directory
2019-11-28 09:47:37 7744 1 Command: TYPE I
2019-11-28 09:47:37 7744 1 Response: 200 Type set to I
2019-11-28 09:47:37 7744 1 Command: EPSV
2019-11-28 09:47:37 7744 1 Response: 229 Entering Extended Passive Mode (|||58285|)
2019-11-28 09:47:37 7744 1 Command: MLSD
2019-11-28 09:47:37 7744 1 Response: 150 Opening BINARY mode data connection for MLSD
2019-11-28 09:47:37 7744 1 Response: 226 Transfer complete
2019-11-28 09:47:37 7744 1 Status: Directory listing of "/" successful
2019-11-28 09:48:22 7744 2 Status: Resolving address of xername.your-backup.de
2019-11-28 09:48:22 7744 2 Status: Connecting to [1111:111:111:1111::1]:21...
2019-11-28 09:48:22 7744 2 Status: Connection established, waiting for welcome message...
2019-11-28 09:48:22 7744 2 Response: 220 ProFTPD Server (Hetzner Backup) [1111:111:111:1111::1]
2019-11-28 09:48:22 7744 2 Command: AUTH TLS
2019-11-28 09:48:22 7744 2 Response: 234 AUTH TLS successful
2019-11-28 09:48:22 7744 2 Status: Initializing TLS...
2019-11-28 09:48:22 7744 2 Status: Verifying certificate...
2019-11-28 09:48:22 7744 2 Status: TLS connection established.
2019-11-28 09:48:22 7744 2 Command: USER xername
2019-11-28 09:48:22 7744 2 Response: 331 Password required for xername
2019-11-28 09:48:22 7744 2 Command: PASS ****************
2019-11-28 09:48:22 7744 2 Response: 230 User xername logged in
2019-11-28 09:48:22 7744 2 Command: CLNT FileZilla
2019-11-28 09:48:22 7744 2 Response: 200 OK
2019-11-28 09:48:22 7744 2 Command: OPTS UTF8 ON
2019-11-28 09:48:22 7744 2 Response: 200 UTF8 set to on
2019-11-28 09:48:22 7744 2 Command: PBSZ 0
2019-11-28 09:48:22 7744 2 Response: 200 PBSZ 0 successful
2019-11-28 09:48:22 7744 2 Command: PROT P
2019-11-28 09:48:22 7744 2 Response: 200 Protection set to Private
2019-11-28 09:48:22 7744 2 Status: Logged in
2019-11-28 09:48:22 7744 2 Status: Starting upload of xxx.zip
2019-11-28 09:48:22 7744 2 Command: CWD /
2019-11-28 09:48:22 7744 2 Response: 250 CWD command successful
2019-11-28 09:48:22 7744 2 Command: PWD
2019-11-28 09:48:22 7744 2 Response: 257 "/" is the current directory
2019-11-28 09:48:22 7744 2 Command: TYPE I
2019-11-28 09:48:22 7744 2 Response: 200 Type set to I
2019-11-28 09:48:22 7744 2 Command: EPSV
2019-11-28 09:48:22 7744 2 Response: 229 Entering Extended Passive Mode (|||50258|)
2019-11-28 09:48:22 7744 2 Command: STOR xxx.zip
2019-11-28 09:48:22 7744 2 Response: 150 Opening BINARY mode data connection for xxx.zip
2019-11-28 09:48:23 7744 2 Response: 226 Transfer complete
2019-11-28 09:48:23 7744 2 Status: File transfer successful, transferred 16.715.696 bytes in 1 second
2019-11-28 09:48:23 7744 2 Status: Retrieving directory listing of "/"...
2019-11-28 09:48:23 7744 2 Command: EPSV
2019-11-28 09:48:23 7744 2 Response: 229 Entering Extended Passive Mode (|||65093|)
2019-11-28 09:48:23 7744 2 Command: MLSD
2019-11-28 09:48:23 7744 2 Response: 150 Opening BINARY mode data connection for MLSD
2019-11-28 09:48:23 7744 2 Response: 226 Transfer complete
2019-11-28 09:48:23 7744 2 Status: Directory listing of "/" successful
2019-11-28 09:55:18 8144 1 Status: Resolving address of u147290.your-backup.de
2019-11-28 09:55:18 8144 1 Status: Connecting to [2a01:4f8:b19:3000::6]:21...
2019-11-28 09:55:18 8144 1 Status: Connection established, waiting for welcome message...
2019-11-28 09:55:18 8144 1 Response: 220 ProFTPD Server (Hetzner Backup) [2a01:4f8:b19:3000::6]
2019-11-28 09:55:18 8144 1 Command: AUTH TLS
2019-11-28 09:55:18 8144 1 Response: 234 AUTH TLS successful
2019-11-28 09:55:18 8144 1 Status: Initializing TLS...
2019-11-28 09:55:18 8144 1 Status: Verifying certificate...
2019-11-28 09:55:18 8144 1 Status: TLS connection established.
2019-11-28 09:55:18 8144 1 Command: USER u147290
2019-11-28 09:55:18 8144 1 Response: 331 Password required for u147290
2019-11-28 09:55:18 8144 1 Command: PASS ****************
2019-11-28 09:55:18 8144 1 Response: 230 User u147290 logged in
2019-11-28 09:55:18 8144 1 Command: SYST
2019-11-28 09:55:18 8144 1 Response: 215 UNIX Type: L8
2019-11-28 09:55:18 8144 1 Command: FEAT
2019-11-28 09:55:18 8144 1 Response: 211-Features:
2019-11-28 09:55:18 8144 1 Response: AUTH TLS
2019-11-28 09:55:18 8144 1 Response: CCC
2019-11-28 09:55:18 8144 1 Response: CLNT
2019-11-28 09:55:18 8144 1 Response: EPRT
2019-11-28 09:55:18 8144 1 Response: EPSV
2019-11-28 09:55:18 8144 1 Response: HOST
2019-11-28 09:55:18 8144 1 Response: LANG ru-RU.UTF-8;ru-RU;zh-TW.UTF-8;zh-TW;ja-JP.UTF-8;ja-JP;zh-CN.UTF-8;zh-CN;bg-BG.UTF-8;bg-BG;es-ES.UTF-8;es-ES;it-IT.UTF-8;it-IT;ko-KR.UTF-8;ko-KR;en-US.UTF-8;en-US*;fr-FR.UTF-8;fr-FR
2019-11-28 09:55:18 8144 1 Response: MDTM
2019-11-28 09:55:18 8144 1 Response: MFF modify;UNIX.group;UNIX.mode;
2019-11-28 09:55:18 8144 1 Response: MFMT
2019-11-28 09:55:18 8144 1 Response: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.groupname*;UNIX.mode*;UNIX.owner*;UNIX.ownername*;
2019-11-28 09:55:18 8144 1 Response: PBSZ
2019-11-28 09:55:18 8144 1 Response: PROT
2019-11-28 09:55:18 8144 1 Response: REST STREAM
2019-11-28 09:55:18 8144 1 Response: SIZE
2019-11-28 09:55:18 8144 1 Response: SSCN
2019-11-28 09:55:18 8144 1 Response: TVFS
2019-11-28 09:55:18 8144 1 Response: UTF8
2019-11-28 09:55:18 8144 1 Response: 211 End
2019-11-28 09:55:18 8144 1 Command: CLNT FileZilla
2019-11-28 09:55:18 8144 1 Response: 200 OK
2019-11-28 09:55:18 8144 1 Command: OPTS UTF8 ON
2019-11-28 09:55:18 8144 1 Response: 200 UTF8 set to on
2019-11-28 09:55:18 8144 1 Command: PBSZ 0
2019-11-28 09:55:18 8144 1 Response: 200 PBSZ 0 successful
2019-11-28 09:55:18 8144 1 Command: PROT P
2019-11-28 09:55:18 8144 1 Response: 200 Protection set to Private
2019-11-28 09:55:18 8144 1 Status: Logged in
2019-11-28 09:55:18 8144 1 Status: Retrieving directory listing...
2019-11-28 09:55:18 8144 1 Command: PWD
2019-11-28 09:55:18 8144 1 Response: 257 "/" is the current directory
2019-11-28 09:55:18 8144 1 Command: TYPE I
2019-11-28 09:55:18 8144 1 Response: 200 Type set to I
2019-11-28 09:55:18 8144 1 Command: EPSV
2019-11-28 09:55:18 8144 1 Response: 229 Entering Extended Passive Mode (|||54647|)
2019-11-28 09:55:18 8144 1 Command: MLSD
2019-11-28 09:55:18 8144 1 Response: 150 Opening BINARY mode data connection for MLSD
2019-11-28 09:55:18 8144 1 Response: 226 Transfer complete
2019-11-28 09:55:18 8144 1 Status: Directory listing of "/" successful
2019-11-28 09:55:24 8144 1 Status: Deleting "/xxx.zip"
2019-11-28 09:55:24 8144 1 Command: DELE xxx.zip
2019-11-28 09:55:24 8144 1 Response: 250 DELE command successful
The same connection, same file, same server, same client (Win Server 2012) leads to the following CoreFtp-Log:
Trace: Disconnecting
Debug: Connecting stream on servername.domain.de:21
Debug: Connecting
Debug: Waiting for welcome message
Trace: Getting Response
Debug: 220 ProFTPD Server (xxxx) [::1111:11.11.11.111]
Trace: Finished receiving message
Debug: Encrypting explicitly
Debug: [FtpClient] Sending command: AUTH TLS
Trace: Getting Response
Debug: 234 AUTH TLS successful
Trace: Finished receiving message
Debug: [FtpClient] Sending command: USER xername
Trace: Getting Response
Debug: 331 Password required for xername
Trace: Finished receiving message
Debug: [FtpClient] Sending command: PASS *****
Trace: Getting Response
Debug: 230 User xername logged in
Trace: Finished receiving message
Debug: [FtpClient] Sending command: PBSZ 0
Trace: Getting Response
Debug: 200 PBSZ 0 successful
Trace: Finished receiving message
Debug: [FtpClient] Sending command: PROT P
Trace: Getting Response
Debug: 200 Protection set to Private
Trace: Finished receiving message
Trace: [FtpClient] Determining features
Debug: [FtpClient] Sending command: FEAT
Trace: Getting Response
Debug: 211-Features:
Debug: AUTH TLS
Debug: CCC
Debug: CLNT
Debug: EPRT
Debug: EPSV
Debug: HOST
Debug: LANG ru-RU.UTF-8;ru-RU;zh-TW.UTF-8;zh-TW;ja-JP.UTF-8;ja-JP;zh-CN.UTF-8;
h-CN;bg-BG.UTF-8;bg-BG;es-ES.UTF-8;es-ES;it-IT.UTF-8;it-IT;ko-KR.UTF-8;ko-KR;en
US.UTF-8;en-US*;fr-FR.UTF-8;fr-FR
Debug: MDTM
Debug: MFF modify;UNIX.group;UNIX.mode;
Debug: MFMT
Debug: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.groupname*;UNIX
mode*;UNIX.owner*;UNIX.ownername*;
Debug: PBSZ
Debug: PROT
Debug: REST STREAM
Debug: SIZE
Debug: SSCN
Debug: TVFS
Debug: UTF8
Debug: 211 End
Trace: Finished receiving message
Trace: [FtpClient] Determining directory provider
Debug: [FtpClient] Sending command: OPTS UTF8 ON
Trace: Getting Response
Debug: 200 UTF8 set to on
Trace: Finished receiving message
Trace: [FtpClient] Setting transfer mode Binary,
Debug: [FtpClient] Sending command: TYPE I
Trace: Getting Response
Debug: 200 Type set to I
Trace: Finished receiving message
Trace: [FtpClient] changing directory to /
Debug: [FtpClient] Sending command: CWD /
Trace: Getting Response
Debug: 250 CWD command successful
Trace: Finished receiving message
Debug: [FtpClient] Sending command: PWD
Trace: Getting Response
Debug: 257 "/" is the current directory
Trace: Finished receiving message
Debug: [FtpClient] Opening file read stream for /xxx.zip
Debug: [FtpClient] Creating directory structure recursively
Debug: [FtpClient] Opening filestream for /xxx.zip, STOR
Trace: [FtpClient] Connecting to a data socket
Debug: [FtpClient] Sending command: EPSV
Trace: Getting Response
Debug: 229 Entering Extended Passive Mode (|||65246|)
Trace: Finished receiving message
Debug: [FtpSocketStream] Opening datastream
Debug: Connecting stream on servername.domain.de:65246
Debug: Connecting
It hangs at this code in FtpControlStream.cs:
protected async Task ConnectStreamAsync( string host, int port, CancellationToken token )
{
try
{
await semaphore.WaitAsync( token );
Logger?.LogDebug( $"Connecting stream on {host}:{port}" );
Socket = await ConnectSocketAsync( host, port, token );
BaseStream = new NetworkStream( Socket );
LastActivity = DateTime.Now;
if ( IsDataConnection )
{
if ( Configuration.ShouldEncrypt && Configuration.EncryptionType == FtpEncryption.Explicit )
{
await ActivateEncryptionAsync(); <---- Hangs here
}
return;
}
from coreftp.
mirkomaty
commented on September 14, 2024
Note the different IPv6 addresses… But this seems to work. The connection for the passive mode data stream is established but CoreFtp can't activate the encryption. Seems to fail during TLS handshake.
If I can do anything to further clarify the situation, please ask.
from coreftp.
Related Issues (20)
- Upload Stream HOT 2
- Ftp requests staying open once complete (Mac OSX El Capitan) HOT 4
- Could not load file or assembly 'System.Net.Security, Version=4.0.0.0 HOT 3
- Actually requires .NETStandard >= 1.6.0 HOT 3
- Cannot get a remote listing against StingRay FTP Server 3.0.2
- Threading dependency package needs upgrading
- Exception Messages unclear while fail to login HOT 1
- FtpClientConfiguration.ClientCertificates.Add not working
- LogoutAsync throws error
- User cannot log in, home directory inaccessible.
- Non Async seems to not function HOT 1
- System.AggregateException
- How to process hidden files. HOT 1
- Force windows filesystem
- Random System.IndexOutOfRangeException when changing directory HOT 1
- Cannot OpenFileReadStreamAsync
- Exception - Disregard
- List files with Data (options) and return IAsyncEnumerable HOT 1
- how can change file name Encoding
- This package gets vulnerable warning in nuget HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from coreftp.