i have a vps running ubuntu 14.10 i installed no machine v3.5 client and server and node when logining in from windows no machine client it says authentification failed here is the log files

nxerror.txt 2524 2740 16:27:29 090.888 DaemonParser/Parser: WARNING! Creating directory 'C:\Users\nx.nx'. Info: Server process running with pid 3120. Info: Server process running with pid 3356. Info: Server process running with pid 3480. Info: Server process running with pid 3948. Info: Server process running with pid 4008. Info: Server process running with pid 4616. Info: Server process running with pid 4720.

nxdevice.txt

[4276][172] 16:24:57 349 ERROR: Cannot remove preinstalled driver package. Winapi code is : 2.

nxserver.txt 2015-03-07 16:25:57 728.505 5028 NXSERVER WARNING! Timeout for nxd 2015-03-07 16:27:28 841.288 2524 NXSERVER Starting NoMachine server 4.4.12 and services.

nxservic.Txt 292 5312 16:25:50 599.293 nxserviceExecuteProcess: ERROR! Read failed. 292 5312 16:25:50 599.293 nxserviceExecuteProcess: Error is 32, Broken pipe. 292 5312 16:25:50 646.093 nxserviceExecuteProcess: ERROR! Read failed. 292 5312 16:25:50 646.093 nxserviceExecuteProcess: Error is 32, Broken pipe. 292 3964 16:26:00 661.310 nxserviceCleanProcess: WARNING! Child refused to exit and will be terminated. 292 5364 16:26:14 669.735 Stack: WARNING! Cannot cleanup access to symbols.

Seriously?

I really only have one question for you.

Did you read the Nomachine quick start guide before you started or are you looking for somebody else to read those three pages for you?

RTFM...
There is no substitute