Match User sshuser
ChrootDirectory /chrootdir
X11Forwarding no
AllowTcpForwarding no

sshd[22]: Accepted password for sshuser from 123.456.789.012 port 1234 ssh2
sshd[22]: pam_unix(sshd:session): session opened for user sshuser by (uid=0)
sshd[22]: User child is on pid 27
sshd[27]: Changed root directory to "/chrootdir"
sshd[27]: error: mm_receive_fd: no message header
sshd[27]: fatal: mm_pty_allocate: receive fds failed
sshd[27]: error: buffer_get_ret: trying to get more bytes 1 than in buffer 0
sshd[27]: error: buffer_get_char_ret: buffer_get_ret failed
sshd[27]: fatal: buffer_get_char: buffer error
sshd[22]: fatal: mm_request_receive: read: Connection reset by peer
sshd[22]: pam_unix(sshd:session): session closed for user sshuser