Re: Rsync problem

Bernd Breitschaedel wrote:
Hello Newsgroup,


I'm not an network expert.

In our Institut i was able to use rsync with ssh for backup my data from
PC to linux server. Since we got a new server the ssh version has
changed from ssh1 to ssh2. To access the server I have to use a
vpn-client (Cisco VPN-Client 4.0.3).

I'm still able to get an ssh2 connection (only if i force ssh to use
keyboard-interactive authentication). rsync is installed on the server
as well. But when i try to use rsync with ssh2 i fail. (See my tries
below.)


Thank you in advance for every help,
Bernd




=============== Rsync Version on PC ===============================
C:\rsync>rsync
rsync version 2.5.1-dev protocol version 26
Copyright (C) 1996-2002 by Andrew Tridgell and others
<http://rsync.samba.org/>
Capabilities: 32-bit files, socketpairs, hard links, symlinks,
batchfiles, no IP
v6,
32-bit system inums, 64-bit internal inums
rsync is a file transfer program capable of efficient remote update
via a fast differencing algorithm.



======== Login to server works (using SSH2 & keyboard interactive)
===========

C:\rsync>ssh2 -h
ssh2: SSH Secure Shell 3.2.0 Windows Client
Copyright (c) 1995-2002 SSH Communications Security Corp
SSH is a registered trademark and Secure Shell is a trademark of
SSH Communications Security Corp (www.ssh.com).
All rights reserved.

C:\rsync>ssh2 -oallowedauthentications=keyboard-interactive
xyz.xyz.xyz.xyz -l user
Keyboard-interactive:
Password:
Keyboard-interactive:
Authentication successful.
Linux viffs1 2.6.8-2-386 #1 Mon Jan 24 03:01:58 EST 2005 i686 GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

Last login: Wed Feb 22 10:33:40 2006 from 192.168.255.10

======== Rsync Version on server ===========

user@server:~$ rsync
rsync version 2.6.6 protocol version 29
Copyright (C) 1996-2005 by Andrew Tridgell and others
<http://rsync.samba.org/>
Capabilities: 64-bit files, socketpairs, hard links, symlinks, batchfiles,
inplace, IPv6, 64-bit system inums, 64-bit internal inums


======== Try to use rsync and ssh2 fails ===========


C:\rsync>rsync -av -e "ssh2
-oallowedauthentications=keyboard-interactive -l user -d 3"
user@xxxxxxxxxxxxxxx:/tst tst
debug: Connecting to xyz.xzy.xyz.xyz, port 22... (SOCKS not used)
debug: Ssh2/ssh2.c:2297: Entering event loop.
debug: Ssh2Client/sshclient.c:1421: Creating transport protocol.
debug: Ssh2Transport/trcommon.c:2522: Allocating cipher: name: none,
key_len: 16
.
debug: Ssh2Transport/trcommon.c:2522: Allocating cipher: name: none,
key_len: 16
.
debug: SshAuthMethodClient/sshauthmethodc.c:85: Added
"keyboard-interactive" to
usable methods.
debug: Ssh2Client/sshclient.c:1462: Creating userauth protocol.
debug: client supports 1 auth methods: 'keyboard-interactive'
debug: Ssh2Common/sshcommon.c:530: local ip = abc.abc.abc.abc, local
port = 1380
debug: Ssh2Common/sshcommon.c:532: remote ip = xyz.xyz.xyz, remote port
= 22
debug: SshConnection/sshconn.c:1945: Wrapping...
debug: Remote version: SSH-2.0-OpenSSH_3.8.1p1 Debian-krb5 3.8.1p1-7
debug: OpenSSH: Major: 3 Minor: 8 Revision: 1
debug: Ssh2Transport/trcommon.c:1518: All versions of OpenSSH handle kex
guesses
incorrectly.
debug: Ssh2Transport/trcommon.c:1714: Computing algorithms from key
exchange.
debug: Ssh2Transport/trcommon.c:1901: lang s to c: `', lang c to s: `'
debug: Ssh2Transport/trcommon.c:1967: c_to_s: cipher 3des-cbc, mac
hmac-sha1, co
mpression none
debug: Ssh2Transport/trcommon.c:1970: s_to_c: cipher 3des-cbc, mac
hmac-sha1, co
mpression none
debug: SshProtoTrKex/trkex.c:481: Making first key exchange packet.
debug: Remote host key found from database.
debug: Ssh2Transport/trcommon.c:2522: Allocating cipher: name: 3des-cbc,
key_len
: 24.
debug: Ssh2Transport/trcommon.c:2522: Allocating cipher: name: 3des-cbc,
key_len
: 24.
debug: Ssh2Common/sshcommon.c:331: Received SSH_CROSS_STARTUP packet
from connec
tion protocol.
debug: Ssh2Common/sshcommon.c:381: Received SSH_CROSS_ALGORITHMS packet
from con
nection protocol.
debug: server offers auth methods
'gssapi-with-mic,publickey,gssapi,keyboard-int
eractive'.
Keyboard-interactive:
Password:
debug: Ssh2AuthKbdInteractiveClient/authc-kbd-interactive.c:244: Sending
respons
e packet.
Keyboard-interactive:
debug: Ssh2AuthKbdInteractiveClient/authc-kbd-interactive.c:244: Sending
respons
e packet.
debug: Ssh2Common/sshcommon.c:299: Received SSH_CROSS_AUTHENTICATED
packet from
connection protocol.
debug: Ssh2/ssh2.c:817: forward_x11 = TRUE, forward_agent = TRUE
debug: Ssh2Common/sshcommon.c:840: num_channels now 1
debug: SshStdioStream/sshwinstdiostream.c:372: disconnection signaled to
stdio s
tream.
debug: SshConnection/sshconn.c:406: EOF from channel stream
debug: SshConnection/sshconn.c:674: EOF received on write from channel
0xb3f258,
extended stream 0.
debug: SshConnection/sshconn.c:1338: Received data when close_sent -
ignoring
debug: SshConnection/sshconn.c:1338: Received data when close_sent -
ignoring
debug: SshStdioStream/sshwinstdiostream.c:286: eof outputted to stdio
stream.
debug: Ssh2ChannelSession/sshchsession.c:1923: received exit status : 12
debug: Ssh2Common/sshcommon.c:807: num_channels now 0
debug: Got session close with exit_status=12
debug: destroying client struct...
debug: Ssh2Client/sshclient.c:1497: Destroying client.
debug: SshConfig/sshconfig.c:2313: Freeing pki. (host_pki != NULL,
user_pki = NU
LL)
debug: SshCertDB/cert-db.c:727: memory left 0
debug: SshConnection/sshconn.c:1997: Destroying SshConn object.
debug: SshStdioStream/sshwinstdiostream.c:316: stdio stream b37268 is
being dest
royed.
debug: SshStdioStream/sshwinstdiostream.c:316: stdio stream b371f0 is
being dest
royed.
rsync: read error: Connection reset by peer
rsync error: error in rsync protocol data stream (code 12) at io.c(151)

C:\rsync>


Are you using public key authentication, and if do, did the
authorized_keys file get deleted or overwritten when the server was updated.

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