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Network Security Secure-Shell
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RE: Problems acrossed platforms.

Subject: RE: Problems acrossed platforms.
Date: Thu, 6 Oct 2005 11:59:28 -0600
 Are you running ssh from the Terminal in OS X, or from an xterm inside
of X11?  I haven't tried doing that since 10.2.something, so the details
may have changed.

At that time though, I had to start X11, open an xterm (not
Terminal.app), and ssh -X from there.

My understanding though is that the ssh client can't handle the X11
connections at its end, since it's not part of an X11 session itself.

Regards
Mark

-----Original Message-----
From: Jim C. [mailto:jlistnews@gmail.com] 
Sent: Wednesday, October 05, 2005 10:28 AM
To: secureshell@securityfocus.com
Subject: Problems acrossed platforms.

I can't get X11 forwarding to work between Redhat 9 and Mac OS X.

The Mac box is my desktop box. The Redhat box is on a KVM switch in the
server room. SSH versions are:

On Rehat: OpenSSH_3.5p1, SSH protocols 1.5/2.0, OpenSSL 0x0090701f

On Mac OS X: OpenSSH_3.6.1p1+CAN-2004-0175, SSH protocols 1.5/2.0,
OpenSSL 0x0090707f

Connection transcript is as follows:

[jamesc@marvin jamesc]$ ssh -vv faap2@grumpy
OpenSSH_3.6.1p1+CAN-2004-0175, SSH protocols 1.5/2.0, OpenSSL 0x0090707f
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Rhosts Authentication disabled, originating port will not be
trusted.
debug2: ssh_connect: needpriv 0
debug1: Connecting to grumpy [192.168.1.228] port 22.
debug1: Connection established.
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug2: key_type_from_name: unknown key type '-----END'
debug1: identity file /Users/jamesc/.ssh/id_dsa type 2
debug1: Remote protocol version 1.99, remote software version
OpenSSH_3.5p1
debug1: match: OpenSSH_3.5p1 pat
OpenSSH_3.2*,OpenSSH_3.3*,OpenSSH_3.4*,OpenSSH_3.5*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.6.1p1+CAN-2004-0175
debug1: Miscellaneous failure
Server not found in Kerberos database

debug1: Miscellaneous failure
Server not found in Kerberos database

debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit:
diffie-hellman-group-exchange-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,arcfour,aes192-cbc,aes256-c
bc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
bc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
6,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
6,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,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-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,arcfour,aes192-cbc,aes256-c
bc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
bc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
6,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
6,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 131/256
debug2: bits set: 1597/3191
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'grumpy' is known and matches the RSA host key.
debug1: Found key in /Users/jamesc/.ssh/known_hosts:17
debug2: bits set: 1565/3191
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
debug1: Authentications that can continue:
publickey,password,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/jamesc/.ssh/id_rsa
debug1: Offering public key: /Users/jamesc/.ssh/id_dsa
debug2: we sent a publickey packet, wait for reply
debug1: Server accepts key: pkalg ssh-dss blen 434 lastkey 0x300cb0 hint
1
debug2: input_userauth_pk_ok: fp
c7:96:d0:3b:ed:77:56:a7:df:a9:ab:0a:3a:e1:10:d3
debug1: read PEM private key done: type DSA
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Entering interactive session.
debug2: callback start
debug2: ssh_session2_setup: id 0
debug1: channel 0: request pty-req
debug2: x11_get_proto: /usr/X11R6/bin/xauth list :0.0 2>/dev/null
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: channel 0: request x11-req
debug1: channel 0: request shell
debug2: callback done
debug1: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel 0: rcvd adjust 131072
faap2@CCB ./faap2 $

If I ssh to my Mandrake box at home, there is no trouble with X11
forwarding.

Jim C. 

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