I installed colinux 0.6.2 on windows 2000p,and downloaded the debian (kernel 2.6) 1Gb image from sourceforge.net .
I wanna use ssh to control colinux under windows 2000. Then I did:
$apt-get update
$apt-get upgrade
$apt-get install ssh
$ssh 192.168.0.40(my local ip)
after I typed the password, it returns "Connection closed by 192.168.0.40"

There're something maybe useful:
$ssh -vvv 192.168.0.40
......
debug3: start over, passed a different list publickey,keyboard-interactive
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /home/akic/.ssh/identity
debug3: no such identity: /home/akic/.ssh/identity
debug1: Trying private key: /home/akic/.ssh/id_rsa
debug3: no such identity: /home/akic/.ssh/id_rsa
debug1: Trying private key: /home/akic/.ssh/id_dsa
debug3: no such identity: /home/akic/.ssh/id_dsa
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
debug3: packet_send2: adding 32 (len 20 padlen 12 extra_pad 64)
Connection closed by 192.168.0.40
$

What should I do?

Since MS does not natively support ssh you would need to install an oss app on the MS box to communicate with ColInux under ssh. The above ouput seems to indicate that it is requesting a password and since it has received none it is closing the connection.