CentOS 6.2 64bit : set up freenx server

# cat /etc/centos-release CentOS release 6.2 (Final) # uname -ri 2.6.32-220.7.1.el6.x86_64 x86_64

[ install freenx server on CentOS 6 ]

install freenx and nx via yum

# yum install freenx nx –y

[ configuration ]

config files are sotred under /etc/nxserver directory.

# pwd /etc/nxserver # ls client.id_dsa.key  node.conf.sample  passwords.orig         users.id_dsa node.conf          passwords         server.id_dsa.pub.key  users.id_dsa.pub

inisital setup

edit node.conf like this:

# cat node.conf ENABLE_PASSDB_AUTHENTICATION="0" ENABLE_SSH_AUTHENTICATION="1" ENABLE_CLIPBOARD="both" NX_LOG_LEVEL=4 NX_LOGFILE=/var/log/nx/nxserver.log COMMAND_MD5SUM="md5sum"

# nxsetup --install --setup-nomachine-key

restart nxserver

# /etc/init.d/freenx-server restart

[ intall NX client for Windows on Windows 7 ]

download nx client from http://www.nomachine.com/download-package.php?Prod_Id=3655

I have installed NX client 3.5.0-7 for windows

launch NX client -> configure


configuration files ( NX client for windows ) for nx session are stored \user\user name\.nx\config folder

Here’s centos6-1.nxs file.  I configured keyboard layout as jp.

<!DOCTYPE NXClientSettings> <NXClientSettings application="nxclient" version="1.3" > <group name="Advanced" > <option key="Cache size" value="16" /> <option key="Cache size on disk" value="64" /> <option key="Current keyboard" value="true" /> <option key="Custom keyboard layout" value="jp" /> <option key="Disable DirectDraw" value="false" /> <option key="Disable ZLIB stream compression" value="false" /> <option key="Disable deferred updates" value="false" /> <option key="Enable HTTP proxy" value="false" /> <option key="Enable SSL encryption" value="true" /> <option key="Enable response time optimisations" value="false" /> <option key="Grab keyboard" value="false" /> <option key="HTTP proxy host" value="" /> <option key="HTTP proxy port" value="8080" /> <option key="HTTP proxy username" value="" /> <option key="Remember HTTP proxy password" value="false" /> <option key="Restore cache" value="true" /> <option key="StreamCompression" value="" /> </group> <group name="Environment" > <option key="Font server host" value="" /> <option key="Font server port" value="7100" /> <option key="Use font server" value="false" /> </group> <group name="General" > <option key="Automatic reconnect" value="true" /> <option key="Command line" value="" /> <option key="Custom Unix Desktop" value="console" /> <option key="Desktop" value="gnome" /> <option key="Disable SHM" value="false" /> <option key="Disable emulate shared pixmaps" value="false" /> <option key="Link speed" value="adsl" /> <option key="Remember password" value="false" /> <option key="Resolution" value="1024x880" /> <option key="Resolution height" value="880" /> <option key="Resolution width" value="1024" /> <option key="Server host" value="IP address" /> <option key="Server port" value="22" /> <option key="Session" value="unix" /> <option key="Spread over monitors" value="false" /> <option key="Use default image encoding" value="1" /> <option key="Use render" value="true" /> <option key="Use taint" value="true" /> <option key="Virtual desktop" value="false" /> <option key="XAgent encoding" value="true" /> <option key="displaySaveOnExit" value="true" /> <option key="xdm broadcast port" value="177" /> <option key="xdm list host" value="localhost" /> <option key="xdm list port" value="177" /> <option key="xdm mode" value="server decide" /> <option key="xdm query host" value="localhost" /> <option key="xdm query port" value="177" /> </group> <group name="Images" > <option key="Disable JPEG Compression" value="0" /> <option key="Disable all image optimisations" value="false" /> <option key="Disable backingstore" value="false" /> <option key="Disable composite" value="false" /> <option key="Image Compression Type" value="3" /> <option key="Image Encoding Type" value="0" /> <option key="Image JPEG Encoding" value="false" /> <option key="JPEG Quality" value="6" /> <option key="RDP Image Encoding" value="3" /> <option key="RDP JPEG Quality" value="6" /> <option key="RDP optimization for low-bandwidth link" value="false" /> <option key="Reduce colors to" value="" /> <option key="Use PNG Compression" value="true" /> <option key="VNC JPEG Quality" value="6" /> <option key="VNC images compression" value="3" /> </group> <group name="Login" > <option key="Auth" value="EMPTY_PASSWORD" /> <option key="Guest Mode" value="false" /> <option key="Guest password" value="" /> <option key="Guest username" value="" /> <option key="Login Method" value="nx" /> <option key="Public Key" value="-----BEGIN DSA PRIVATE KEY----- zzzzz -----END DSA PRIVATE KEY----- " /> <option key="User" value="zzz" /> </group> <group name="Services" > <option key="Audio" value="false" /> <option key="IPPPort" value="631" /> <option key="IPPPrinting" value="false" /> <option key="Shares" value="true" /> </group> <group name="VNC Session" > <option key="Display" value="0" /> <option key="Remember" value="false" /> <option key="Server" value="" /> </group> <group name="Windows Session" > <option key="Application" value="" /> <option key="Authentication" value="2" /> <option key="Color Depth" value="8" /> <option key="Domain" value="" /> <option key="Image Cache" value="true" /> <option key="Password" value="EMPTY_PASSWORD" /> <option key="Remember" value="true" /> <option key="Run application" value="false" /> <option key="Server" value="" /> <option key="User" value="" /> </group> <group name="share chosen" > <option key="Share number" value="0" /> </group> </NXClientSettings>

connect to the centos from windows machine.

[ keymap setting ]

I can’t enter underscore via NX session

to solve this , edit .xmodmap file.

$ xmodmap -pke > .Xmodmap

add the “backslach underscore” in keycode 123.

$ egrep 123 ~/.Xmodmap keycode 123 = backslash underscore

terminate NX session and connect again
You could enter underscore.


If you want to start freenx-server when booting the OS , configure system services with chkconfig command like this:

# chkconfig freenx-server --list freenx-server   0:off   1:off   2:on    3:on    4:on    5:on    6:off # chkconfig freenx-server off # chkconfig freenx-server on