Topic "is "SCP Fallback" broken?"

Author Message
spongman

Guest


it doesn't work for me. but forced SCP works fine.

SCP fallback:



. 2012-01-21 01:21:01.631 --------------------------------------------------------------------------
. 2012-01-21 01:21:01.631 WinSCP Version 5.0.5 (Build 1782) (OS 6.1.7601 Service Pack 1)
. 2012-01-21 01:21:01.632 Configuration: E:\bin\WinSCP.ini
. 2012-01-21 01:21:01.633 Local account: DOMAIN\user
. 2012-01-21 01:21:01.633 Login time: Saturday, January 21, 2012 1:21:01 AM
. 2012-01-21 01:21:01.633 --------------------------------------------------------------------------
. 2012-01-21 01:21:01.633 Session name: user@10.0.0.1 (Modified stored session)
. 2012-01-21 01:21:01.633 Host name: 10.0.0.1 (Port: 22)
. 2012-01-21 01:21:01.633 User name: user (Password: No, Key file: Yes)
. 2012-01-21 01:21:01.633 Tunnel: No
. 2012-01-21 01:21:01.633 Transfer Protocol: SFTP (SCP)
. 2012-01-21 01:21:01.633 Ping type: -, Ping interval: 30 sec; Timeout: 15 sec
. 2012-01-21 01:21:01.633 Proxy: none
. 2012-01-21 01:21:01.633 SSH protocol version: 2; Compression: No
. 2012-01-21 01:21:01.633 Bypass authentication: No
. 2012-01-21 01:21:01.633 Try agent: Yes; Agent forwarding: No; TIS/CryptoCard: No; KI: Yes; GSSAPI: No
. 2012-01-21 01:21:01.633 Ciphers: aes,blowfish,3des,WARN,arcfour,des; Ssh2DES: No
. 2012-01-21 01:21:01.633 SSH Bugs: -,-,-,-,-,-,-,-,-
. 2012-01-21 01:21:01.633 SFTP Bugs: -,-
. 2012-01-21 01:21:01.633 Return code variable: Autodetect; Lookup user groups: Yes
. 2012-01-21 01:21:01.633 Shell: default
. 2012-01-21 01:21:01.633 EOL: 0, UTF: 2
. 2012-01-21 01:21:01.633 Clear aliases: Yes, Unset nat.vars: Yes, Resolve symlinks: Yes
. 2012-01-21 01:21:01.633 LS: ls -la, Ign LS warn: Yes, Scp1 Comp: No
. 2012-01-21 01:21:01.633 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2012-01-21 01:21:01.633 Cache directory changes: Yes, Permanent: Yes
. 2012-01-21 01:21:01.633 DST mode: 1
. 2012-01-21 01:21:01.633 --------------------------------------------------------------------------
. 2012-01-21 01:21:01.728 Looking up host "10.0.0.1"
. 2012-01-21 01:21:01.728 Connecting to 10.0.0.1 port 22
. 2012-01-21 01:21:01.780 Server version: SSH-2.0-dropbear_0.52
. 2012-01-21 01:21:01.780 We believe remote version has SSH-2 ignore bug
. 2012-01-21 01:21:01.780 Using SSH protocol version 2
. 2012-01-21 01:21:01.780 We claim version: SSH-2.0-WinSCP_release_5.0.5
. 2012-01-21 01:21:01.787 Using Diffie-Hellman with standard group "group1"
. 2012-01-21 01:21:01.787 Doing Diffie-Hellman key exchange with hash SHA-1
. 2012-01-21 01:21:02.884 Host key fingerprint is:
. 2012-01-21 01:21:02.884 ssh-rsa 1040 31:58:74:6a:4b:c5:91:5b:b7:c4:42:69:ac:2b:b7:51
. 2012-01-21 01:21:02.884 Initialised AES-256 SDCTR client->server encryption
. 2012-01-21 01:21:02.884 Initialised HMAC-SHA1 client->server MAC algorithm
. 2012-01-21 01:21:02.884 Initialised AES-256 SDCTR server->client encryption
. 2012-01-21 01:21:02.884 Initialised HMAC-SHA1 server->client MAC algorithm
. 2012-01-21 01:21:02.890 Reading private key file "C:\Users\user\putty.ppk"
! 2012-01-21 01:21:02.891 Using username "user".
. 2012-01-21 01:21:02.939 Offered public key
. 2012-01-21 01:21:02.944 Offer of public key accepted
! 2012-01-21 01:21:02.944 Authenticating with public key "rsa-key-20110106"
. 2012-01-21 01:21:03.028 Access granted
. 2012-01-21 01:21:03.030 Opened channel for session
. 2012-01-21 01:21:03.073 Started a shell/command
. 2012-01-21 01:21:03.094 --------------------------------------------------------------------------
. 2012-01-21 01:21:03.095 Using SFTP protocol.
. 2012-01-21 01:21:03.096 Doing startup conversation with host.
> 2012-01-21 01:21:03.146 Type: SSH_FXP_INIT, Size: 5, Number: -1
! 2012-01-21 01:21:03.146 sh: /opt/libexec/sftp-server: not found
. 2012-01-21 01:21:03.146 Server sent command exit status 127
. 2012-01-21 01:21:03.146 Disconnected: All channels closed
* 2012-01-21 01:21:03.208 (EFatal) Connection has been unexpectedly closed. Server sent command exit status 127.
* 2012-01-21 01:21:03.208 Cannot initialize SFTP protocol. Is the host running a SFTP server?


forced SCP:

. 2012-01-21 01:26:11.475 --------------------------------------------------------------------------
. 2012-01-21 01:26:11.476 WinSCP Version 5.0.5 (Build 1782) (OS 6.1.7601 Service Pack 1)
. 2012-01-21 01:26:11.476 Configuration: E:\bin\WinSCP.ini
. 2012-01-21 01:26:11.477 Local account: DOMAIN\user
. 2012-01-21 01:26:11.477 Login time: Saturday, January 21, 2012 1:26:11 AM
. 2012-01-21 01:26:11.477 --------------------------------------------------------------------------
. 2012-01-21 01:26:11.477 Session name: user@10.0.0.1 (Modified stored session)
. 2012-01-21 01:26:11.477 Host name: 10.0.0.1 (Port: 22)
. 2012-01-21 01:26:11.477 User name: user (Password: No, Key file: Yes)
. 2012-01-21 01:26:11.477 Tunnel: No
. 2012-01-21 01:26:11.477 Transfer Protocol: SCP
. 2012-01-21 01:26:11.477 Ping type: -, Ping interval: 30 sec; Timeout: 15 sec
. 2012-01-21 01:26:11.477 Proxy: none
. 2012-01-21 01:26:11.477 SSH protocol version: 2; Compression: No
. 2012-01-21 01:26:11.477 Bypass authentication: No
. 2012-01-21 01:26:11.477 Try agent: Yes; Agent forwarding: No; TIS/CryptoCard: No; KI: Yes; GSSAPI: No
. 2012-01-21 01:26:11.477 Ciphers: aes,blowfish,3des,WARN,arcfour,des; Ssh2DES: No
. 2012-01-21 01:26:11.477 SSH Bugs: -,-,-,-,-,-,-,-,-
. 2012-01-21 01:26:11.477 SFTP Bugs: -,-
. 2012-01-21 01:26:11.477 Return code variable: Autodetect; Lookup user groups: Yes
. 2012-01-21 01:26:11.477 Shell: default
. 2012-01-21 01:26:11.477 EOL: 0, UTF: 2
. 2012-01-21 01:26:11.477 Clear aliases: Yes, Unset nat.vars: Yes, Resolve symlinks: Yes
. 2012-01-21 01:26:11.477 LS: ls -la, Ign LS warn: Yes, Scp1 Comp: No
. 2012-01-21 01:26:11.477 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2012-01-21 01:26:11.477 Cache directory changes: Yes, Permanent: Yes
. 2012-01-21 01:26:11.477 DST mode: 1
. 2012-01-21 01:26:11.477 --------------------------------------------------------------------------
. 2012-01-21 01:26:11.572 Looking up host "10.0.0.1"
. 2012-01-21 01:26:11.572 Connecting to 10.0.0.1 port 22
. 2012-01-21 01:26:11.624 Server version: SSH-2.0-dropbear_0.52
. 2012-01-21 01:26:11.624 We believe remote version has SSH-2 ignore bug
. 2012-01-21 01:26:11.624 Using SSH protocol version 2
. 2012-01-21 01:26:11.624 We claim version: SSH-2.0-WinSCP_release_5.0.5
. 2012-01-21 01:26:11.630 Using Diffie-Hellman with standard group "group1"
. 2012-01-21 01:26:11.630 Doing Diffie-Hellman key exchange with hash SHA-1
. 2012-01-21 01:26:12.726 Host key fingerprint is:
. 2012-01-21 01:26:12.726 ssh-rsa 1040 31:58:74:6a:4b:c5:91:5b:b7:c4:42:69:ac:2b:b7:52
. 2012-01-21 01:26:12.726 Initialised AES-256 SDCTR client->server encryption
. 2012-01-21 01:26:12.726 Initialised HMAC-SHA1 client->server MAC algorithm
. 2012-01-21 01:26:12.726 Initialised AES-256 SDCTR server->client encryption
. 2012-01-21 01:26:12.726 Initialised HMAC-SHA1 server->client MAC algorithm
. 2012-01-21 01:26:12.732 Reading private key file "C:\Users\user\putty.ppk"
! 2012-01-21 01:26:12.732 Using username "user".
. 2012-01-21 01:26:12.781 Offered public key
. 2012-01-21 01:26:12.786 Offer of public key accepted
! 2012-01-21 01:26:12.786 Authenticating with public key "rsa-key-20110106"
. 2012-01-21 01:26:12.870 Access granted
. 2012-01-21 01:26:12.873 Opened channel for session
. 2012-01-21 01:26:12.910 Started a shell/command
. 2012-01-21 01:26:12.936 --------------------------------------------------------------------------
. 2012-01-21 01:26:12.936 Using SCP protocol.
. 2012-01-21 01:26:12.937 Doing startup conversation with host.
. 2012-01-21 01:26:12.988 Skipping host startup message (if any).
> 2012-01-21 01:26:12.988 echo "WinSCP: this is end-of-file:0"
< 2012-01-21 01:26:13.045 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:13.045 Detecting variable containing return code of last command.
. 2012-01-21 01:26:13.046 Trying "$status".
> 2012-01-21 01:26:13.046 echo "$status" ; echo "WinSCP: this is end-of-file:0"
< 2012-01-21 01:26:13.124 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:13.125 The response is not numerical exit code
. 2012-01-21 01:26:13.125 Trying "$?".
> 2012-01-21 01:26:13.125 echo "$?" ; echo "WinSCP: this is end-of-file:0"
< 2012-01-21 01:26:13.186 0
< 2012-01-21 01:26:13.207 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:13.208 Return code variable "$?" selected.
. 2012-01-21 01:26:13.208 Clearing all aliases.
> 2012-01-21 01:26:13.208 unalias "ls" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.250 unalias: ls not found
< 2012-01-21 01:26:13.267 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.267 unalias "echo" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.310 unalias: echo not found
< 2012-01-21 01:26:13.328 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.328 unalias "pwd" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.370 unalias: pwd not found
< 2012-01-21 01:26:13.387 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.387 unalias "cd" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.430 unalias: cd not found
< 2012-01-21 01:26:13.447 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.447 unalias "groups" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.493 unalias: groups not found
< 2012-01-21 01:26:13.512 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.512 unalias "scp" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.553 unalias: scp not found
< 2012-01-21 01:26:13.572 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.572 unalias "rm" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.610 unalias: rm not found
< 2012-01-21 01:26:13.628 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.628 unalias "mv" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.670 unalias: mv not found
< 2012-01-21 01:26:13.687 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.687 unalias "mkdir" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.733 unalias: mkdir not found
< 2012-01-21 01:26:13.752 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.752 unalias "chmod" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.793 unalias: chmod not found
< 2012-01-21 01:26:13.812 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.812 unalias "chgrp" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.850 unalias: chgrp not found
< 2012-01-21 01:26:13.867 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.867 unalias "chown" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.910 unalias: chown not found
< 2012-01-21 01:26:13.927 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.928 unalias "unset" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:13.973 unalias: unset not found
< 2012-01-21 01:26:13.992 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:13.992 unalias "unalias" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:14.033 unalias: unalias not found
< 2012-01-21 01:26:14.052 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:14.052 unalias "ln" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:14.093 unalias: ln not found
< 2012-01-21 01:26:14.111 WinSCP: this is end-of-file:1
> 2012-01-21 01:26:14.112 unalias "cp" ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:14.150 unalias: cp not found
< 2012-01-21 01:26:14.167 WinSCP: this is end-of-file:1
. 2012-01-21 01:26:14.167 Clearing national user variables.
> 2012-01-21 01:26:14.167 unset "LANG" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.226 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.226 unset "LANGUAGE" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.286 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.286 unset "LC_CTYPE" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.346 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.346 unset "LC_COLLATE" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.406 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.406 unset "LC_MONETARY" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.466 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.466 unset "LC_NUMERIC" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.526 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.526 unset "LC_TIME" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.586 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.586 unset "LC_MESSAGES" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.646 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.646 unset "LC_ALL" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.706 WinSCP: this is end-of-file:0
> 2012-01-21 01:26:14.706 unset "HUMAN_BLOCKS" ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:14.766 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:14.766 Looking up groups and users.
> 2012-01-21 01:26:14.766 groups ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:14.812 -sh: groups: not found
< 2012-01-21 01:26:14.829 WinSCP: this is end-of-file:127
* 2012-01-21 01:26:14.829 (ECommand) Error looking up user groups.
* 2012-01-21 01:26:14.829 Command 'groups'
* 2012-01-21 01:26:14.829 failed with return code 127 and error message
* 2012-01-21 01:26:14.829 -sh: groups: not found.
. 2012-01-21 01:26:16.989 Getting current directory name.
> 2012-01-21 01:26:16.989 pwd ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:17.030 /tmp/home/user
< 2012-01-21 01:26:17.047 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:17.047 Listing current directory.
> 2012-01-21 01:26:17.047 ls -la --full-time ; echo "WinSCP: this is end-of-file:$?"
! 2012-01-21 01:26:17.110 ls: unrecognized option `--full-time'
! 2012-01-21 01:26:17.113 BusyBox v1.17.4 (2010-11-30 19:38:45 EST) multi-call binary.
! 2012-01-21 01:26:17.121 Usage: ls [-1AacCdeFilnpLRrSsTtuvwxXhk] [FILE]...
< 2012-01-21 01:26:17.141 WinSCP: this is end-of-file:1
* 2012-01-21 01:26:17.141 (ETerminal) Command 'ls -la --full-time'
* 2012-01-21 01:26:17.141 failed with return code 1 and error message
* 2012-01-21 01:26:17.141 ls: unrecognized option `--full-time'
* 2012-01-21 01:26:17.141 BusyBox v1.17.4 (2010-11-30 19:38:45 EST) multi-call binary.
* 2012-01-21 01:26:17.141
* 2012-01-21 01:26:17.141 Usage: ls [-1AacCdeFilnpLRrSsTtuvwxXhk] [FILE]....
. 2012-01-21 01:26:17.141 Directory listing with --full-time failed, try again regular listing.
. 2012-01-21 01:26:17.141 Listing current directory.
> 2012-01-21 01:26:17.141 ls -la ; echo "WinSCP: this is end-of-file:$?"
< 2012-01-21 01:26:17.203 drwx------ 3 user user 60 Dec 31 1969 .
< 2012-01-21 01:26:17.203 drwxr-xr-x 3 user user 60 Dec 31 1969 ..
< 2012-01-21 01:26:17.203 drwx------ 2 user user 60 Dec 31 1969 .ssh
< 2012-01-21 01:26:17.222 WinSCP: this is end-of-file:0
. 2012-01-21 01:26:17.222 Startup conversation with host finished.
. 2012-01-21 01:26:19.214 Closing connection.
. 2012-01-21 01:26:19.214 Sending special code: 12
. 2012-01-21 01:26:19.214 Sent EOF message
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martin
[View user's profile]
Site Admin
Joined: 2002-12-10
Posts: 24991
Location: Prague, Czechia
The fallback does not work if the SSH server closes the connection instead of just refusing to start SFTP.
_________________
Martin Prikryl
spongman

Guest


prikryl wrote:
The fallback does not work if the SSH server closes the connection instead of just refusing to start SFTP.

would it be possible to have WinSCP re-try the connection in that case?
martin
[View user's profile]
Site Admin
Joined: 2002-12-10
Posts: 24991
Location: Prague, Czechia
It would be possible. But to be honest, improving SCP fallback now, when SCP is falling into obscurity, is a waste of a time, imho.
_________________
Martin Prikryl
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