[FreeNX-kNX] expect error connecting to nxserver

[Adam Carheden]

I figured it out. For the google record, the problem was the wrong
host key in /usr/NX/home/nx/.ssh/known_hosts. I presumably happened
when I cloned the machine and regenerated the ssh server's host keys.
Deleting /usr/NX/home/nx/.ssh/known_hosts fixed everything.

On 12/5/06, Adam Carheden <adam.carheden at gmail.com> wrote:
> I've got a mysterious problem with freenx server running on Gentoo
> Linux AMD64 that I'm hoping someone can give me insight into.
>
> When I connect to the machine, nxclient reports that authentication
> failed. The Details button is greyed. I've tried with with numerous
> clients (linux/1.5, windows/1.5, windows/2.0, localhost), all with the
> same results.
>
> When I try to connect maually I get the following:
> /usr/NX/bin/nxssh -nx -i /usr/NX/share/client.id_dsa.key "nx@<remote
> host name here>" -p 22 -x -2 -o "RhostsAuthentication no" -o
> "PasswordAuthentication no" -o "RSAAuthentication no
> NX> 203 NXSSH running with pid: 30352
> NX> 200 Connected to address: <remote IP here> on port: 22
> NX> 202 Authenticating user: nx
> NX> 208 Using auth method: publickey
> HELLO NXSERVER - Version 1.5.0-50-SVN OS (GPL)
> NX> 105 login
> login
> NX> 101 User: acarheden
> acarheden
> NX> 102 Password: <my password here>
>
> expect: spawn id exp3 not open
>    while executing
> "expect -nobrace {Are you sure you want to continue connecting
> (yes/no)?} { send "yes\r" } assword*: { sleep 0.3; send "$password\r"
> } {Permission deni..."
>    invoked from within
> "expect {
>                "Are you sure you want to continue connecting
> (yes/no)?" { send "yes\r" }
>                "assword*:"  { sleep 0.3; send "$password\r" }
>                "Permission de..."
>    ("while" body line 2)
>    invoked from within
> "while {1} {
>        expect {
>                "Are you sure you want to continue connecting
> (yes/no)?" { send "yes\r" }
>                "assword*:"  { sleep 0.3; send "$password\r" }
>                "..."
>    (file "/usr/NX/bin/nxnode-login" line 36)
> NX> 404 ERROR: wrong password or login
> NX> 999 Bye
>
> I know my password is fine because ssh (including x11 forwarding)
> works fine to that machine. This method also works to various other
> nxserver machines. Instead of the 'expect' crap, I get:
> NX> 103 Welcome to: <remote host name> user: acarheden
> NX> 105
>
> The line "expect: spawn id exp3 not open" makes me suspect that expect
> is failing to spawn ssh or ssh is dying, but I'm not sure how to test
> or fix that.
>
> The really strange part is that I know this worked with I first
> installed the system just after installing xorg and kde. I've
> installed a few unrelated things since then (a few days ago), but now
> it's failing. I also have 4 other identical (i.e. installed using a
> Gentoo stage4 tarball) systems that work fine.
>
> Google only seems to have heart of this problem in Russian (I think).
> I don't speak Russian, but based on the length of the thread, I don't
> think the problem was solved. The reference is here:
> http://lists.hellug.gr/pipermail/linux-greek-users/2005-December/060039.html
>
> Any hints would be much appreciated.
> --
> Adam Carheden
>


-- 
Adam Carheden