Automatic disconnection on one side

[jcdole]

Hello.

I have tested with success NoMachine 4 client ( opensuse 12.3 ).

Now I have a try with 3 linux box running kde 4.14 ( machine A, B, C ) and kernel  3.16.7 and NoMachine 5.0.63 on opensuse 13.2 (x86_64)

The NoMachine configuration files ( node.cfg and server.cfg ) are identical for each machine.

SSH and firewall are supposed to have the same configuration files.

The router for the local network (wired, wifi) is a netgear 6300v2 which act also as a dhcp server.

Any of the Linux machine  can connect to each other via ssh from any side ( a-b or b-a // a-c or c-a // b-c or c-b ) and can exchange files. SSH use a different port than NX which does not use port 4000.

Using NoMachine, machine a and c can connect from any side ( a-c or c-a )

Machine a can connect to machine b, but not from other side ( b to a )

Machine c can connect to machine b, but not from other side ( b to c )

The disconnection arise a few seconds after the connection.

During this test, the firewalls are stopped.

All the test are made under root account.

Any help is welcome.

Attachments:

1. test_machine_b.tar.gz
2. test_machine_c.tar.gz

[Mth]

Hello

With logs provided, the problem is hard to debug, to handle it we would require
more data.

Please set in the node.cfg:

SessionLogClean 0

Also it seems, that master agent hangs in this case, so please add this line at the
bottom in the server.cfg:

dumpCoreOnHang 1

This will cause the server to kill node with signal 11 instead of 9, so please make sure
the system can handle core dumps.
After this please restart the nomachine server:

/etc/NX/nxserver –restart

Reproduce the problem and send the server and node logs as previously. We would also
require the full agent logs, so please include the full:

/usr/NX/var/log/

directory.

When the problem is reproduced, please do:

/etc/NX/nxserver –restart

again so, if the Agent hanged, the system produce core report for nxnode process. We would
require the backtrace of all threads. The instruction is available here:

https://www.nomachine.com/AR09L00810

Also include the logs from client machine: .nx directory in user’s home.
In case of uncertainty please consult article on collecting logs:

https://www.nomachine.com/DT07M00098

Send all logs on to forum[at]nomachine[dot]com making sure to reference your topic in message title.

And some finishing questions: have you tried to log in as different user than root? Do the same problems happen?
Also is the machine you are trying to connect to on user desktop or Login Window?

[Author]

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