Some users experience “Connection closed” messages when attempting to use sftp, scp, svn+ssh or other ssh tunneled services if their profile contains errors.

use ssh+key can log to the server, but scp and sftp just return a “Connection closed”

$sftp -v 2hei.net

Connecting to 2hei.net…

OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: Applying options for *

debug1: Connecting to 2hei.net [192.168.1.100] port 22.

debug1: Connection established.

debug1: identity file /home/2hei/.ssh/id_rsa type 1

debug1: identity file /home/2hei/.ssh/id_dsa type -1

debug1: loaded 2 keys

debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3

debug1: match: OpenSSH_4.3 pat OpenSSH*

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_4.3

debug1: SSH2_MSG_KEXINIT sent

debug1: SSH2_MSG_KEXINIT received

debug1: kex: server->client aes128-cbc hmac-md5 none

debug1: kex: client->server aes128-cbc 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 ‘2hei.net’ is known and matches the RSA host key.

debug1: Found key in /home/2hei/.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,gssapi-with-mic,password

debug1: Next authentication method: gssapi-with-mic

debug1: Unspecified GSS failure.  Minor code may provide more information

Unknown code krb5 195

debug1: Unspecified GSS failure.  Minor code may provide more information

Unknown code krb5 195

debug1: Unspecified GSS failure.  Minor code may provide more information

Unknown code krb5 195

debug1: Next authentication method: publickey

debug1: Offering public key: /home/2hei/.ssh/id_rsa

debug1: Server accepts key: pkalg ssh-rsa blen 277

debug1: read PEM private key done: type RSA

debug1: Authentication succeeded (publickey).

debug1: channel 0: new [client-session]

debug1: Entering interactive session.

debug1: Sending environment.

debug1: Sending env LANG = en_US.UTF-8

debug1: Sending subsystem: sftp

debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0

debug1: channel 0: free: client-session, nchannels 1

debug1: fd 0 clearing O_NONBLOCK

debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 9.2 seconds

debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0

debug1: Exit status -1

Connection closed

this caused by .bashrc or .bash_profile, we can change our bash configs:

$cat .bashrc 

# .bash_profile

# Get the aliases and functions

#if [ -f ~/.bashrc ]; then

#        . ~/.bashrc

#fi

if [ -f /etc/bashrc ]; then

. /etc/bashrc

fi

useful link: http://kb.wisc.edu/cae/page.php?id=12081