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-   -   Cannot ssh into N800 from ubuntu (https://talk.maemo.org/showthread.php?t=22902)

Rider 2008-08-16 14:24
Cannot ssh into N800 from ubuntu
 
Very strange: I can perfectly ssh from my Mac into my N800, while it hangs after entering the password if I ssh from my ubuntu laptop.

Network is fine, and password authentication works.

Any idea?

My debug log looks like that:

ssh -vvv root@n800
ssh -vvv root@n800
OpenSSH_4.7p1 Debian-8ubuntu1.2, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to n800 [192.168.67.248] port 22.
debug1: Connection established.
debug1: identity file /home/xxxxx/.ssh/identity type -1
debug1: identity file /home/xxxxx/.ssh/id_rsa type -1
debug1: identity file /home/xxxxx/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.7p1 Debian-12.maemo2
debug1: match: OpenSSH_4.7p1 Debian-12.maemo2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.7p1 Debian-8ubuntu1.2
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_setup: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug2: mac_setup: found hmac-md5
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
debug2: dh_gen_key: priv key bits set: 128/256
debug2: bits set: 530/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile: filename /home/xxxxx/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 4
debug3: check_host_in_hostfile: filename /home/xxxxx/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 5
debug1: Host 'n800' is known and matches the RSA host key.
debug1: Found key in /home/xxxxx/.ssh/known_hosts:4
debug2: bits set: 498/1024
debug1: ssh_rsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/xxxxx/.ssh/identity ((nil))
debug2: key: /home/xxxxx/.ssh/id_rsa ((nil))
debug2: key: /home/xxxxx/.ssh/id_dsa ((nil))
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
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/xxxxx/.ssh/identity
debug3: no such identity: /home/xxxxx/.ssh/identity
debug1: Trying private key: /home/xxxxx/.ssh/id_rsa
debug3: no such identity: /home/xxxxx/.ssh/id_rsa
debug1: Trying private key: /home/xxxxx/.ssh/id_dsa
debug3: no such identity: /home/xxxxx/.ssh/id_dsa
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
root@n800's password:
debug3: packet_send2: adding 64 (len 55 padlen 9 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug1: Entering interactive session.
debug2: callback start
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 0
debug3: tty_make_modes: ospeed 9600
debug3: tty_make_modes: ispeed 9600
debug3: tty_make_modes: 1 3
debug3: tty_make_modes: 2 28
debug3: tty_make_modes: 3 127
debug3: tty_make_modes: 4 21
debug3: tty_make_modes: 5 4
debug3: tty_make_modes: 6 255
debug3: tty_make_modes: 7 255
debug3: tty_make_modes: 8 17
debug3: tty_make_modes: 9 19
debug3: tty_make_modes: 10 26
debug3: tty_make_modes: 12 18
debug3: tty_make_modes: 13 23
debug3: tty_make_modes: 14 22
debug3: tty_make_modes: 18 15
debug3: tty_make_modes: 30 0
debug3: tty_make_modes: 31 0
debug3: tty_make_modes: 32 0
debug3: tty_make_modes: 33 0
debug3: tty_make_modes: 34 0
debug3: tty_make_modes: 35 0
debug3: tty_make_modes: 36 1
debug3: tty_make_modes: 37 0
debug3: tty_make_modes: 38 1
debug3: tty_make_modes: 39 1
debug3: tty_make_modes: 40 0
debug3: tty_make_modes: 41 1
debug3: tty_make_modes: 50 1
debug3: tty_make_modes: 51 1
debug3: tty_make_modes: 52 0
debug3: tty_make_modes: 53 1
debug3: tty_make_modes: 54 1
debug3: tty_make_modes: 55 0
debug3: tty_make_modes: 56 0
debug3: tty_make_modes: 57 0
debug3: tty_make_modes: 58 0
debug3: tty_make_modes: 59 1
debug3: tty_make_modes: 60 1
debug3: tty_make_modes: 61 1
debug3: tty_make_modes: 62 1
debug3: tty_make_modes: 70 1
debug3: tty_make_modes: 71 0
debug3: tty_make_modes: 72 1
debug3: tty_make_modes: 73 0
debug3: tty_make_modes: 74 0
debug3: tty_make_modes: 75 0
debug3: tty_make_modes: 90 1
debug3: tty_make_modes: 91 1
debug3: tty_make_modes: 92 0
debug3: tty_make_modes: 93 0
debug2: channel 0: request shell confirm 0
debug2: fd 3 setting TCP_NODELAY
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0
debug2: client_check_window_change: changed
debug2: channel 0: request window-change confirm 0

and so on.

spirytsick 2008-08-16 15:02
Re: Cannot ssh into N800 from ubuntu
 
Is it a genuine mac or one of hackintoshes ?

Rider 2008-08-16 15:05
Re: Cannot ssh into N800 from ubuntu
 
It is an Ubuntu Linux.

The ssh from a Mac works well.

qwerty12 2008-08-16 15:12
Re: Cannot ssh into N800 from ubuntu
 
I had a somewhat similar problem. But it was due to my router. When I would ssh into my N800 from windows, it would hang after entering the password with the same message as the ones in your log.
Sshing into the N800 from Ubuntu Linux would hang after entering the password with the same message as the ones in your log.

When I sshed from my N800 to another, totally separate host, the N800 would hang after entering the password. But my Linux and Windows computer would connect fine to that same separate host.

In the end, I just recompiled openssh for the tablets with a fix:
http://qwerty12.maemobox.org/openssh_badrouter_fix/

and ssh to and from my N800 works fine now.

But I think your problem is not that as your Mac connects fine. Your problem may be this one: https://bugs.launchpad.net/ubuntu/+s...sh/+bug/237894

(I use ndiswrapper fine on Ubuntu Linux Hardy to connect to ssh servers fine)

Rider 2008-08-16 15:29
Re: Cannot ssh into N800 from ubuntu
 
Quote:
Your problem may be this one
Thanks querty, that solved it!

For some strange reason, the laptop cannot ssh when connected via WIFI. When on a normal ethernet connection ist works. So the problem is Ubuntu and I may have to search there how to get rid of it.

Thanks for your help anyway!

dubwise 2008-08-16 16:54
Re: Cannot ssh into N800 from ubuntu
 
Quote:
ssh -vvv root@n800
How do you give the N800 a hostname of n800?
Conversely, how can you see what it thinks the current hostname is?

spirytsick 2008-08-16 17:22
Re: Cannot ssh into N800 from ubuntu
 
Quote:
Originally Posted by dubwise (Post 214422)
How do you give the N800 a hostname of n800?
Conversely, how can you see what it thinks the current hostname is?
I have set the static ip through dhcp to my n800 (at least on my home network) then it is easy either to add a host to /etc/hosts or use ~/.ssh/config facility.

dubwise 2008-08-16 18:12
Re: Cannot ssh into N800 from ubuntu
 
Does it need a static IP? My XP machines and my mac are addressable by name regardless.
I edited /etc/hosts so it says
127.0.0.1 N800 localhost
but when I go for root@N800, WinSCP can't find it, Host does not exist.

Of course, I don't have any idea what I'm doing.

XPsp3 and Diablo 4.2008.30-2

spirytsick 2008-08-16 19:44
Re: Cannot ssh into N800 from ubuntu
 
that is beacuse the line 127.0.0.1 N800 localhost points to localhost only

you would need something like

127.0.0.1 localhost
192.168.1.10 N800


(substitute 192.168.1.10 for N800 ip address)

also note the hosts file on windows is located in C:\windows\system32\drivers\etc
(if i remember correctly)

dubwise 2008-08-16 20:20
Re: Cannot ssh into N800 from ubuntu
 
Oh, this is something I do on the XP machine?
There's no way for the N800 to name itself on the network?
Oh, well.

Good call on the windows hosts file location, BTW.
Nothing in it but what Spybot's put there.


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