install nxserver on centos 6

I use matlab in linux server (centos)
Three remote control methods have different disadvantages..
XDMCP + SSH tunnel +matlab -->very very SLOW
VNC + Matlab--> crash sometimes and keypad disorders
   (press '0123456' in matlab command line, and the result shows '012456')
NXserver + Matlab --> lags when you scroll down in Matlab editor...
I can't find an excellent method in using Matlab in Centos 6...


Due to the application in a small group
the install guides on the internet are not suitable for me
so I write down some tips for myself

Environment:
Centos 6
SSH version 2 works well

Tips:
1. install

>> yum install nx freenx 

2. 

>> vi /etc/nxserver/node.conf

"SSHD_PORT=1234" 

"ENABLE_SSH_AUTHENTICATION="1"

>> vi /etc/ssh/sshd_config

"PasswordAuthentication yes" 

3.

service sshd restart 

4. 

nxserver --restart

5.

cat /var/lib/nxserver/home/.ssh/client.id_dsa.key

tell the client all the content of the file in some secret way

It may look like

"-----BEGIN DSA PRIVATE KEY-----
MIIBuwIBAAKBgQCXv9AzQXjxvXWskX9YomTfyG865gb4D02ZwWuRU/9
C3I9/bEWLdaWgJYkmWjjeSZyTmeoypI1iLifTHUxn3b7WNWi8AzKcVF
QU7TGVLk2CzY4dasrwxJ1f6FsT8DHTNGnxELPKRuR7KeafeFZDf+fJ3
mbX5nxrld3wi5titTnX+8s4IKv29HJguPvOK/SI7cjzA+SqNfD7qEo8CFDIm1xRf
8xAPsSKs6yZ6j1FNklfu
-----END DSA PRIVATE KEY-----" 

6.

download the client from the nomachine official website