Home / server / Questions / 207214
Accepted
Jake
Asked: 2010-11-30 17:20:14 +0800 CST

Where can I find logs for SFTP?

  • 772

I'm trying to set up sftp-server but the client is getting an error, Connection closed by server with exitcode 1

/var/log/auth.log (below) doesn't help much, how can I find out what the error is?

I'm running Ubuntu 10.04.1 LTS

sshd[27236]: Accepted password for theuser from (my ip) port 13547 ssh2
sshd[27236]: pam_unix(sshd:session): session opened for user theuser by (uid=0)
sshd[27300]: subsystem request for sftp
sshd[27236]: pam_unix(sshd:session): session closed for user theuser

Update: I've been prodding this for a while now, I've got the sftp command on another server giving me a more useful error.

Request for subsystem 'sftp' failed on channel 0
Couldn't read packet: Connection reset by peer

Everything I've found on the net suggests this id a problem with sftp-server but when I remove the chroot from sshd config I can access the system. I assume this means sftp-server is accessible and set up correctly.

ssh sftp ubuntu-10.04

3 Answers

  1. I had exactly the same problem. Just like MikeyB suggests, you probably need to change the subsystem to internal-sftp. I changed the following in sshd_config:

    Subsystem sftp /usr/lib/openssh/sftp-server

    To

    Subsystem sftp internal-sftp

    You also have to change the ForceCommand value in the Match stanza, to something like this:

    Match User john-doe
    ChrootDirectory %h
    AllowTCPForwarding no
    X11Forwarding no
    ForceCommand internal-sftp

    Atleast that worked for me, hope this helps someone.

    • 3
  2. Best Answer

    The sftp-server is an external binary. It's likely not inside your chroot environment.

    If you modify sshd_config to use the internal subsystem (if available) it should start working with chroot.

    • 1

  3. Just had this myself.

    The user simply needed to have SSH permissions.

    • 0