cannot login to server with nxclient (can with ssh)

otoomet · 10-22-2009, 04:09 AM

Hi,

after playing around with udev rules and a reboot, I cannot log into a server with nxclient any more. The nxserver log looks like:

Code:

-- NX SERVER START: -c /usr/lib/nxserver - ORIG_COMMAND=
-- NX SERVER START:  - ORIG_COMMAND=
Info: Using fds #4 and #3 for communication with nxnode.
HELLO NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: 3.3.0)
NX> 105 hello NXCLIENT - Version 3.2.0
NX> 134 Accepted protocol: 3.2.0
NX> 105 SET SHELL_MODE SHELL
NX> 105 SET AUTH_MODE PASSWORD
NX> 105 login
NX> 101 User: siim
NX> 102 Password:
Info: Auth method: ssh siim@127.0.0.1's password:
Permission denied (publickey,password).
FREENX> 716 Slave mode failed to start.
Info: Closing connection to slave with pid 7684.

i.e. it seems that the problem is in my password. auth.log looks liket that:

Code:

Oct 22 11:47:43 Shiva sshd[7513]: reverse mapping checking getaddrinfo for hha.hha.forskningsnettet.dk [130.226.249.238] failed - POSSIBLE BREAK-IN ATTEMPT!
Oct 22 11:47:43 Shiva sshd[7513]: Accepted publickey for nx from xxx.xxx.249.238 port 32565 ssh2
Oct 22 11:47:43 Shiva sshd[7513]: pam_unix(sshd:session): session opened for user nx by (uid=0)
Oct 22 11:47:44 Shiva sshd[7692]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=localhost  user=siim
Oct 22 11:47:47 Shiva sshd[7692]: Failed password for siim from 127.0.0.1 port 48465 ssh2
Oct 22 11:47:51 Shiva nxserver[7699]: (nx) Failed login for user=siim from IP=xxx.xxx.249.238
Oct 22 11:47:51 Shiva sshd[7513]: pam_unix(sshd:session): session closed for user nx

Seems like the user nx can log on, but not me.

Any ideas? Any suggestions where to look?

Best,
Ott

acid_kewpie · 10-22-2009, 04:12 AM

well that's just totally standard ssh. I take it you can't log in normally over ssh either?

otoomet · 10-22-2009, 04:28 AM

The weird thing is that I can log via ssh.

There earlier issues with e.g. /dev/ptmx belonging to scanner group, created part of the problems. I was able to correct that issue with help of nx log file. But probably some nasty stuff is still left which I have no idea how to approach...

acid_kewpie · 10-22-2009, 05:10 AM

Does anything change if you ssh to localhost form the server itself? And sorry to sound patronising, but you are logging in to the nxclient with the same password you ssh with, no?

otoomet · 10-22-2009, 05:19 AM

Woooww... I tried ssh localhost, added localhost as known server, and now it works!

Was this that simple? How can a localhosts rsa key get missing? Did I somehow mess up the keys or config or something?

Thanks anyway!
Ott

acid_kewpie · 10-22-2009, 09:47 AM

well it doesn't use keys, only passwords. Where did you add is as a "known server"?

otoomet · 10-22-2009, 10:11 AM

Well, while logging via ssh to a new server... It asks something like "do you trust ..." and gives the fingerprint. Cannot remember the wording. So it looks like localhost wasn't recognized as a trusted server.