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TB168 Rev4 Networking Linux Based Controls
Creating a Network
If not already connected create the network using cables switches routers etc To successful connect a DHCP network
you will require a Cable/DSL Router which automatically generates IP addresses Static IP networks work with a switch/hub
Simple network configurations  Control and one or more computers via Cable/DSL Router Use Cat 5 straight through
Ethernet cables
You should have lighted "link" indicator lights on all switch and computer connections This is a good indication that you
have connectivity but it is not a guarantee
Consult Windows XP Help and other resources for network setup assistance and trouble shooting
Make sure that the computers can share files with one another before attempting to access shared folders from CNC10 If
the computers cannot access each other's shared network files neither will CNC10
Verify that all network cables and equipment connecting the control to the network are working before you physically hook
up the control
Note
 Software versions 2 36 and below do not support active directory networking  Versions 2 61 and up do support
active directory networking
Setting up the Remote PC
Using the XP Network Setup Wizard
1 On your Windows XP machine go to "Start" "Control Panel"
2 If viewing by category as shown below click on "Network and Internet Connections" Click on "Setup or change your home or small
office network"
3 If using the "classic" view as shown below double click on "Network Connections" Click on "Set up a home or small office network" Â Â
  Â
4 The Network Setup Wizard will start
5 Click "Next" and answer all the questions about your network All scenarios listed in the Network Setup Wizard are compatible with
CNC10 If you do not have an Internet connection through your computer or another computer on the network or you are connecting
direct from the control to a laptop computer you may select "Other" when asked how to best describe your network
6 When the following screen appears be sure to note the Computer Name circled in red below CNC10 will need the computer
name in order to connect to it  Note Make sure the computer name is all one word with no spaces or symbols
7 Â When the "File and printer sharing" window comes up make sure you have it checked to turn on file and printer sharing
8 You will be required to restart your computer after the Network Setup Wizard completes
Making a Network Setup Disk
When the Network Setup Wizard is near completion it will ask you if you wish to create a Network Setup Disk You should make a
Network Setup Disk if any computer on your network is running Windows 98 2000 or ME To run the disk on another computer insert
the disk into the computer and double click on the NETSETUP EXE file on the Network Setup Disk
It is possible to create a Network Setup Disk without running the Network Setup Wizard For information on how to do this go to
Windows XP Help and Support and search for "network setup disk"
Note Â
There are 2 ways of configuring network file sharing in v 2 60 and above 1 Using a Windows file server the only way to set up
a pre 2 60 control 2 Using the control as a file server
Setting up the Linux Control
If using a Cable/DSL Router follow the DHCP Network Setup If using a switch follow the Static IP Address Network Centroid
recommends using a Cable/DSL Router and using the DHCP network
Sharing Files with CNC10 with a Windows File Server
The following example demonstrates how to set up the Shared Documents folder as a shared folder on the network Click on "Start"
then "My Computer"
Right click on the "Shared Documents" folder and select "Sharing and Security"
Check the box "Share this folder on the network" Check the "Allow network users to change my files" if you want CNC10 to be able to
save files in this folder
Note
The Share Name circled in red above CNC10 will need to know both the Computer Name and Share Name in order to access
files in this folder The example above uses the "Shared Documents" folder; however you may share any folder on your computer
Refer to Windows XP Support and Help for more information
Setting up CNC Linux File sharing
Accessing Windows Shared Folders from CNC10
1 Press ALT F6
to bring up a command prompt
2 From the CNC10 directory type the following edit cnc10 net
press enter
     Absolute path is "/cncroot/c/cnc10/cnc10 net" Note If a message appears that the file doesn't exist just select "New File"
3 Add lines for each share Each line must contain
     // computer name
/ share name drive letter
" options
"
4 For example //winxp1/shareddocs g "username=guest"
     //winserver/cnc e "username=joe password="
     Note
The username and password are your login into XP
5 Save the file and close the edit screen by pressing CTRL + Q
6 Type exit
and press enter
to go back into CNC10 software
7 If using version CNC10 v1 51 or less you have to make sure that the "Remote Drive & Directory" is set to the drive letter used in the
cnc10 net file in the Control Configuration F1 Setup
F3 Config
password 137
and F1 Contrl
    Ex g Note Do not call the shared directory from the control configuration only call drive letter
8 Shut down and restart the control Shares will be mounted at startup
9 Access a share by its "drive" letter from the CNC10 load menu
* All trademarks are the property of their respective owners "Windows" and related trademarks are the property of Microsoft
Active Directory Networking
Note
Active directory networks are only supported in software version 2 60 and higher
This section describes how to configure CNC Linux v2 6x with an Active Directory network
The cnc10 net file format is the same as described in the "Setting up CNC Linux File sharing" section in this document For an Active
Directory network the username and password must be the username and password for the Active Directory account that the control
is using to connect to the network shares For example we used "username=centroid1 password=Evaluation1" in the cnc10 net
options These are specific to the network in which the control is to operate
The control does not need to "join" the Active Directory network Every share that the control must connect to must have the username
and password specified in the cnc10 net file for that share
If shares in different domains need to be accessed by the control an additional option may need to be added to the option list for a
particular share to specify what domain the account is located in So the above example would be changed to
"username=centroid1 password=Evaluation1 domain=ADSNET local" where "ADSNET local" is the domain that "centroid1"is located
in In our testing this option was not required this testing involved only a single domain
Setting up a Static IP Address Network under Windows
1 Open the Control Panel
2 Open Network Connections
3 Open Local Area Connection
4 Open Properties
5 Click on Internet Protocol TCP/IP and open its properties
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6 Select "Use the following IP address" and enter the following IP address Subnet mask and Default gateway
The address 192 168 0 2 is an example If this address is already used you can use any address from 192 168 0 2 through
192 168 0 254
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Setting up a Static IP Address Network under CNC Linux For Software versions 1 0 to 2 38
*** Changing the file below should only be done by a qualified tech rep Centroid recommends using DHCP If your configuration
requires Static IP addressing then contact your qualified tech rep or local IT professional
1 Edit the " ifcfg eth0
" file by typing edit /etc/sysconfig/network scripts/ifcfg eth0
2 Change the line " BOOTPROTO=dhcp
" to " BOOTPROTO=none
"
3 Start a windows command window by clicking start then run At the prompt type " cmd
" and press enter
4 You now type the following ipconfig
and then press enter
5 You should now see information similar to the following
6 Take note of this information since it will be needed during the configuration of CNC Linux
7 Change the " NETWORK=
" to " NETWORK=192 168 0 0
"
    Note
If you chose a different IP address other than that shown in the above examples use the first 3 numbers in the IP address
followed by "0" For instance if you chose "10 11 12 13" as your IP address your network line would be "NETWORK=10 11 12 0"
8 Change the " BROADCAST=
" line to " BROADCAST=192 168 0 255
"
    Note
If you chose a different IP address other than that shown in the above examples use the first 3 numbers in the IP address
followed by "255" For instance if you chose "10 11 12 13" as your IP address your broadcast line would be "
BROADCAST=10 11 12 255
"
9 Change the " IPADDR=
" line to " IPADDR=192 168 0 3
"
     Note 1
The first three numbers in the IP address should match the first three numbers of the "IP Address" line shown in the Windows
ipconfig screen
     Note 2
The IP address chosen chosen for CNC Linux must not be an IP address already in use use an address that is NOT the
Windows machine's address and is NOT the default gateway's address In this example any address from 192 168 0 3 through
192 168 0 254 would be acceptable
     Note 3
If networking multiple controls you will need a different IP address for each control
10 Change the " GATEWAY=
" line to " GATEWAY=192 168 0 1
" The IP address specified here should be the same as the address on
the "Default Gateway" line shown in the Windows ipconfig screen
11 Change the " NETMASK=
" line to " NETMASK=255 255 255 0
" The IP address specified here should be the same as the address
on the "Subnet Mask" line shown in the Windows ipconfig screen
Below is what the final configuration for CNC Linux should look like
Note
If networking multiple controls you will need a different IPaddress for each control Everything else would be the same
Setting up a Static IP Address Network under CNC Linux For Software versions 2 60 & up
If you upgraded a system to 2 6x from a previous version that was using a Static IP address then changes need to be made to not
only the ifcfg eth0 file but the ifroute eth0 file as well The BOOTPROTO BROADCAST IPADDR NETMASK and NETWORK should
be modified in the ifcfg eth0 file and the GATEWAY will be modified in the ifroute eth0 file The following steps should be followed only
if a network has been established before the upgrade If not please follow the Static IP instructions earlier in this document to gather
the information needed to setup a Static IP
Editing the ifcfg eth0 file
1 Type edit /etc/sysconfig/network/ifcfg eth0
2 Under BOOTPROTO change " dhcp
" to " static
"
3 Enter the Broadcast address under BROADCAST
4 Enter the IP address under IPADDR
5 Enter the Subnet Mask address under NETMASK
6 Enter the Network address under NETWORK
The default ifcfg eth0 file will look like this
BOOTPROTO='dhcp'
BROADCAST=''
ETHTOOL_OPTIONS=''
IPADDR=''
MTU=''
NAME='Ethernet Adapter'
NETMASK=''
NETWORK=''
REMOTE_IPADDR=''
STARTMODE='auto'
USERCONTROL='no'
If the control was using a static IP address of 192 168 0 3 on the network 192 168 0 0 the ifcfg eth0 file would look like this
BOOTPROTO='static'
BROADCAST='192 168 0 255'
ETHTOOL_OPTIONS=''
IPADDR='192 168 0 3'
MTU=''
NAME='Ethernet Adapter'
NETMASK='255 255 255 0'
NETWORK='192 168 0 0'
REMOTE_IPADDR=''
STARTMODE='auto'
USERCONTROL='no'
Editing the ifroute eth0 file
1 Type edit /etc/sysconfig/network/ifroute eth0
2 Delete the # that is located in front of the default 192 168 0 1
3 Change the 192 168 0 1 to your current Default Gateway address
The default ifroute eth0 file is set up to use DHCP and looks like this
# route gateway remote_network device
# ======= =========== ============== ======
# default 192 168 0 1
If the control was using a static IP address of 192 168 0 3 on the network 192 168 0 0 the ifroute eth0 file would look like this
# route gateway remote_network device
# ======= =========== ============== ======
default 192 168 0 1
Connecting to the Control's Shares with the Control acting as a File server
This is a new option that is available for controls running software version 2 60 and newer
Connecting to the shares provided by the control is no different than connecting to the shares provided by any other file server on a
network
In windows explorer or "My Computer" click on "Address"
Type \\centroid_cnc
the default control name
Enter the username " root
" and password " centroid
" the default password
The available shares on the Centroid control will be displayed
Right click on the share that you want to attach to a drive letter
Select "Map network drive "
Assign a free drive letter on the "Map Network Drive" window and make sure that "Reconnect at logon" is selected
Changing the Control's Password Name & Shares Â
Note
This section only applies to software version 2 60 and up
The cnc10 net file will still need to be created just like in the "Setting up CNC Linux File sharing" section earlier in this
document
The default username is "root" and default password is "centroid"
In order to access individual controls on a multi control shop network each control will need its own unique computer name
Changing the default password centroid
Press ALT F6
on the control to start a command prompt
Type  smbpasswd
Enter the new password when prompted
Changing the default computer name centriod_cnc
Press Alt+F6
on the control to bring up a Linux prompt
Change to the " /etc/samba
" directory by typing cd /etc/samba
Edit the " smb conf
" file by typing edit smb conf
In the "[global]" section find the line that says "netbios name =" The name to the right of the "=" sign is the name of the
control The new name must be 15 characters or less and can include any combination of characters except for spaces and
the following \/ *?";| After changing the control's name save the file and exit the editor
Type netgo
Below is the default "[global]" section
[global]
# workgroup = NT Domain Name or Workgroup Name
# server string = the equivalent of the NT Description field
  workgroup = MSHOME
  netbios name = centroid_cnc
  server string = Centroid Control
  security = user
  log file = /var/log/samba/%m log
  max log size = 50
  dns proxy = no
Changing the Shares provided by the Control
Changing the share can be done by editing the " /etc/samba/smb conf
" file After saving the contents of the file the command " netgo
"
will need to be run to make the changes take effect The share definitions are below the line "===== Share Definitions =====" Each
share is defined as five lines and separated from other shares by a blank line
1 "[mill_intercon]" is the share name
2 "comment = Mill Intercon Files" is the comment that is shown when you select the properties of the share in the Windows
Explorer/My Computer window
3 "path = /cncroot/c/intercon" is the path to the shared directory
4 "browsable = yes" is if you can see the share when you browse the control's shares
5 "writable = yes" is if the share's files are read only or writable
Below is an example of a share
[mill_intercon]
   comment = Mill Intercon Files
   path = /cncroot/c/intercon
   browsable = yes
   writable = yes
Neither the "smb conf" file nor the share password are preserved when creating a report for the control If the flash card is replaced
these settings will need to be manually restored re edit the file and re enter the password using smbpasswd
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Document History
Rev4 Created on 2009 07 21
by #240
Rev3 Created on 2008 06 23
by #240
Rev2
Created on 2008 06 10
by #240
Rev1 Created on 2004 09 29
by #000