cannot login with sftp but with ssh

MattiasKilbo · 06-29-2009, 07:32 AM

I have a problem with sftp login to a Ubuntu server. sftp works for root, but not for other users.
ssh works as usual and for all users.

Code:

[mattias@localhost ~]$ sftp -v mattias@*****.com
Connecting to ****.com... 
OpenSSH_5.2p1, OpenSSL 0.9.8k 25 Mar 2009 
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for * 
debug1: Connecting to ****.com [****] port 22.
debug1: Connection established. 
debug1: identity file /home/mattias/.ssh/id_rsa type -1 
debug1: identity file /home/mattias/.ssh/id_dsa type -1 
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-3ubuntu1
debug1: match: OpenSSH_5.1p1 Debian-3ubuntu1 pat OpenSSH* 
debug1: Enabling compatibility mode for protocol 2.0 
debug1: Local version string SSH-2.0-OpenSSH_5.2 
debug1: SSH2_MSG_KEXINIT sent 
debug1: SSH2_MSG_KEXINIT received 
debug1: kex: server->client aes128-ctr hmac-md5 none 
debug1: kex: client->server aes128-ctr hmac-md5 none 
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent 
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP 
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent 
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY 
debug1: Host '****.com' is known and matches the RSA host key. 
debug1: Found key in /home/mattias/.ssh/known_hosts:2 
debug1: ssh_rsa_verify: signature correct 
debug1: SSH2_MSG_NEWKEYS sent 
debug1: expecting SSH2_MSG_NEWKEYS 
debug1: SSH2_MSG_NEWKEYS received 
debug1: SSH2_MSG_SERVICE_REQUEST sent 
debug1: SSH2_MSG_SERVICE_ACCEPT received 
debug1: Authentications that can continue: publickey,password 
debug1: Next authentication method: publickey 
debug1: Trying private key: /home/mattias/.ssh/id_rsa 
debug1: Trying private key: /home/mattias/.ssh/id_dsa 
debug1: Next authentication method: password 
mattias@****.com's password: 
debug1: Authentication succeeded (password). 
debug1: channel 0: new [client-session] 
debug1: Requesting no-more-sessions@openssh.com 
debug1: Entering interactive session. 
debug1: Sending subsystem: sftp 
debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0 
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0 
debug1: channel 0: free: client-session, nchannels 1 
debug1: fd 0 clearing O_NONBLOCK 
Transferred: sent 1376, received 1960 bytes, in 0.1 seconds 
Bytes per second: sent 23161.5, received 32991.7 
debug1: Exit status -1 
Connection closed

Febi881 · 06-30-2009, 12:21 AM

Quote:

Originally Posted by MattiasKilbo

I have a problem with sftp login to a Ubuntu

debug1: Sending subsystem: sftp
debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0...............

[/CODE]

This link might help you.
http://www.unix.com/unix-advanced-ex...orks-root.html

MattiasKilbo · 06-30-2009, 03:09 AM

It did lead to some more information, but he did not have the same problem as I have now by the look of the logs.

sudo /etc/init.d/ssh restart -d gives me this when logging in.

Code:

debug1: sshd version OpenSSH_5.1p1 Debian-3ubuntu1                                                              
debug1: read PEM private key done: type RSA                                                                     
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048                                               
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048                                                     
debug1: private host key: #0 type 1 RSA                                                                         
debug1: read PEM private key done: type DSA                                                                     
debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024                                               
debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024                                                     
debug1: private host key: #1 type 2 DSA                                                                         
debug1: rexec_argv[0]='/usr/sbin/sshd'                                                                          
debug1: rexec_argv[1]='-d'                                                                                      
error writing /proc/self/oom_adj: Operation not permitted                                                       
debug1: Bind to port 22 on ::.                                                                                  
Server listening on :: port 22.                                                                                 
debug1: Bind to port 22 on 0.0.0.0.                                                                             
Server listening on 0.0.0.0 port 22.                                                                            
debug1: Server will not fork when running in debugging mode.                                                    
debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8                                                         
error writing /proc/self/oom_adj: Operation not permitted                                                       
debug1: inetd sockets after dupping: 3, 3                                                                       
Connection from *.*.*.* port 11595                                                                        
debug1: Client protocol version 2.0; client software version OpenSSH_5.2                                        
debug1: match: OpenSSH_5.2 pat OpenSSH*                                                                         
debug1: Enabling compatibility mode for protocol 2.0                                                            
debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-3ubuntu1                                              
debug1: permanently_set_uid: 103/65534                                                                          
debug1: list_hostkey_types: ssh-rsa,ssh-dss                                                                     
debug1: SSH2_MSG_KEXINIT sent                                                                                   
debug1: SSH2_MSG_KEXINIT received                                                                               
debug1: kex: client->server aes128-ctr hmac-md5 none                                                            
debug1: kex: server->client aes128-ctr hmac-md5 none                                                            
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received                                                                    
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent                                                                          
debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT                                                                      
debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent                                                                          
debug1: SSH2_MSG_NEWKEYS sent                                                                                   
debug1: expecting SSH2_MSG_NEWKEYS                                                                              
debug1: SSH2_MSG_NEWKEYS received                                                                               
debug1: KEX done                                                                                                
debug1: userauth-request for user mattias service ssh-connection method none                                    
debug1: attempt 0 failures 0                                                                                    
debug1: PAM: initializing for "mattias"                                                                         
debug1: PAM: setting PAM_RHOST to "****"                         
debug1: PAM: setting PAM_TTY to "ssh"                                                                           
Failed none for mattias from *.*.*.* port 11595 ssh2                                                      
debug1: userauth-request for user mattias service ssh-connection method password                                
debug1: attempt 1 failures 0                                                                                    
debug1: PAM: password authentication accepted for mattias                                                       
debug1: do_pam_account: called                                                                                  
Accepted password for mattias from *.*.*.* port 11595 ssh2                                                
debug1: monitor_child_preauth: mattias has been authenticated by privileged process                             
debug1: PAM: establishing credentials                                                                           
User child is on pid 1371                                                                                       
debug1: SELinux support disabled
debug1: PAM: establishing credentials
debug1: permanently_set_uid: 1000/1000
debug1: Entering interactive session for SSH2.
debug1: server_init_dispatch_20
debug1: server_input_channel_open: ctype session rchan 0 win 2097152 max 32768
debug1: input_session_request
debug1: channel 0: new [server-session]
debug1: session_new: session 0
debug1: session_open: channel 0
debug1: session_open: session 0: link with channel 0
debug1: server_input_channel_open: confirm session
debug1: server_input_global_request: rtype no-more-sessions@openssh.com want_reply 0
debug1: server_input_channel_req: channel 0 request subsystem reply 1
debug1: session_by_channel: session 0 channel 0
debug1: session_input_channel_req: session 0 req subsystem
subsystem request for sftp
debug1: subsystem: exec() /usr/lib/openssh/sftp-server
debug1: Received SIGCHLD.
debug1: session_by_pid: pid 1452
debug1: session_exit_message: session 0 channel 0 pid 1452
debug1: session_exit_message: release channel 0
debug1: session_by_channel: session 0 channel 0
debug1: session_close_by_channel: channel 0 child 0
debug1: session_close: session 0 pid 0
debug1: channel 0: free: server-session, nchannels 1
Connection closed by *.*.*.*
debug1: do_cleanup
Transferred: sent 1960, received 1376 bytes
Closing connection to *.*.*.* port 11595
debug1: PAM: cleanup
debug1: PAM: deleting credentials
debug1: PAM: closing session

Febi881 · 06-30-2009, 07:06 AM

Quote:

Originally Posted by MattiasKilbo

It did lead to some more information, but he did not have the same problem as I have now by the look of the logs.

...

[/CODE]

Check Weater your /etc/hosts.allow and hosts.deny file. Is it blocking something?

MattiasKilbo · 06-30-2009, 08:24 AM

both files are empty except for comments and this:
"sendmail: all"
line in /etc/hosts.allow
They are not blocking anything.

anomie · 06-30-2009, 04:42 PM

What are the permissions on /usr/lib/openssh/sftp-server?

MattiasKilbo · 07-01-2009, 04:45 AM

The permissions on /usr/lib/openssh/sftp-server are
-rwxr-xr-x 1 root root 50900 2008-10-13 20:50 sftp-server

chmod 777 did not change anything.

cienfuegos · 11-07-2009, 02:29 PM

I have the same problem. Have you solved it?

MattiasKilbo · 11-08-2009, 03:45 AM

No, but I'm not working at the company with the problem anymore.