Samantha Samuel on Tue, 15 Jan 2002 15:21:19 -0500


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Re: [PLUG] RemoteX


> > I did that, I did get back my prompt. But x windows did'nt pop up.
> > And yes, I do have x windows configured.
>
> But there were no errors spit to your terminal?

No.

> > I didn't find anything of relevance.
>
> Unfortunately, that may be true, but I'd like to see what's actually
> in your logs for about five entries around the PAM messages relevant
> to the ssh -f login.

Jan 13 04:02:00 kira syslogd 1.4-0: restart.
Jan 13 04:02:00 kira syslogd 1.4-0: restart.
Jan 13 04:02:00 kira syslogd 1.4-0: restart.
Jan 14 19:00:55 kira sshd(pam_unix)[20568]: session opened for user oracle by (uid=0)
Jan 14 19:01:47 kira sshd(pam_unix)[20568]: session closed for user oracle
Jan 14 19:08:40 kira sshd(pam_unix)[20630]: session opened for user oracle by (uid=0)
Jan 14 19:16:49 kira su(pam_unix)[20692]: session opened for user root by oracle(uid=400)

> If there's really nothing there, then start another sshd on the
> server end (doesn't matter if you're not root) as
>
>   sshd -d -d -d -p 2022 > /tmp/sshd.log 2>&1

debug1: Seeding random number generator
debug1: sshd version OpenSSH_2.5.2p2
debug1: load_private_key_autodetect: type 0 RSA1
debug3: Bad RSA1 key file /etc/ssh/ssh_host_rsa_key.
debug1: read SSH2 private key done: name rsa w/o comment success 1
debug1: load_private_key_autodetect: type 1 RSA
debug3: Bad RSA1 key file /etc/ssh/ssh_host_dsa_key.
debug1: read SSH2 private key done: name dsa w/o comment success 1
debug1: load_private_key_autodetect: type 2 DSA
debug1: Bind to port 2022 on 0.0.0.0.
Server listening on 0.0.0.0 port 2022.
Generating 768 bit RSA key.
RSA key generation complete.

I didn't get my prompt back after this, and while I was doing a cat on the
log, I noticed that no further changes seemed to be happening, so closed
it.

> Then, on the client end, do:
>
>   ssh -v -v -v -f {host} {X command} 2> /tmp/ssh.log

SSH Version OpenSSH_2.3.0p1, protocol versions 1.5/2.0.
Compiled with SSL (0x0090600f).
debug: Reading configuration data /etc/ssh/ssh_config
debug: Seeding random number generator
debug: ssh_connect: getuid 0 geteuid 0 anon 0
debug: Connecting to <host Name> [ip number] port 22.
debug: Seeding random number generator
debug: Allocated local port 958.
debug: Connection established.
debug: Remote protocol version 1.99, remote software version OpenSSH_2.5.2p2
debug: no match: OpenSSH_2.5.2p2
debug: Local version string SSH-1.5-OpenSSH_2.3.0p1
debug: Waiting for server public key.
debug: Received server public key (768 bits) and host key (1024 bits).
debug: Host '<host Name>' is known and matches the RSA host key.
debug: Seeding random number generator
debug: Encryption type: 3des
debug: Sent encrypted session key.
debug: Installing crc compensation attack detector.
debug: Received encrypted confirmation.
debug: Doing password authentication.
debug: Sending command: /home/oracle/
debug: Entering interactive session.
debug: Sending eof.
bash: /home/oracle/: is a directory
debug: Transferred: stdin 0, stdout 36, stderr 0 bytes in 0.1 seconds
debug: Bytes per second: stdin 0.0, stdout 375.6, stderr 0.0
debug: Exit status 126

Also, on my router ports 22 is open. Not 6000. On my comp 22 and 6000, and
on the remote host, I don't know yet.

> One additional thought: do you have logs on the firewall? If so, are
> they blocking packets that seem relevant? (Remember, X wants to
> communicate in the 600n range.) If you're seeing nothing at all on
> the firewall, then I'd start getting suspicious that your ISP is the
> one blocking the X forwarding.

is that 600 range or 6000?

The win box belongs to my roomie. So I have to check with him.

Thx
-- 
Samantha
-------
Real programmers do not comment their code. If it was hard to write, it
should be hard to understand.












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