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Networking for CNC10 Systems Running cnclinux 11 2
Sections
1 Configuring the network device
2 Configuring the firewall under cnclinux
3 Sharing Files from the control to a PC
4 Sharing Files from a PC to the control
Prelude
This guide is intended to help configure a control running cnclinux 11 2 and CNC10 for networking It
does not show how to configure the PC Please foll ow the guide in the order it is presented Plugging
in a USB mouse for the duration of the guide will m ake this process much easier If you only want to
share files one way you can skip the steps for Sec tion 3 or Section 4 You must configure the networ k
device and firewall to allow any file sharing to wo rk
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Section 1 Configuring the network device
This guide will walk you through configuring networ k devices using Yast It will be easier if there is a
mouse connected to the system
Yast is available through the task bar Programs an d Settings >Settings >Yast
If the task bar is not visible open a terminal win dow by pressing Alt F6 This should make the task bar
visible and you should be able to navigate it using a mouse
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Start Yast and find the Network Settings module Click on Network Settings to start the module
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Now choose the network card that you are going to connect to your network and choose edit
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Click on the first tab and ensure that the Firewall Zone is set to External Zone
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Click on the second tab and ensure that the checkbox for Dynamic Address is chosen This is the
DHCP option If you want to use a static ip addres s you can do that here also
You shouldn't need to change anything on the third tab Hardware
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Click Next and the settings should take effect You will be taken to this window where you can review
the changes Press Ok when you are finished
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Section 2 Configuring the firewall under cnclinux
This section will guide you through ensuring that the firewall is properly configured to allow file
sharing on the control
First Start Yast again
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Next find and start the firewall module by clicking on it
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Now on the left side of the window click Start Up Check Enable Firewall Automatic Starting If the
firewall isn't running click on Start Firewall Now
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Next choose the Allow Services Section Set the drop down box for “Allowed Services for Selected
Zone” to “External Zone” You are going to make su re that Samba Server Samba Client and Netbios
Server are allowed in the External Zone which is t he zone assigned to your network device
The following services should be allowed
Netbios Server
Samba Client
Samba Server
The Netbios Server allows linux to translate a NetB IOS name into an ip address
The Samba Client allows the control to read network shares
The Samba Server allows the control to share folder s on the network
If any of the services are not in the list use the “Service To Allow” drop down box to choose the
service Then click Add to add it to the list
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The rest of the Firewall settings shouldn't need changed The images below are for your reference
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When You are done with the settings click “Next” Verify your settings and press Finish
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Section 3
Sharing Files from the control to a PC
File sharing will not work if the network device is not configured or if the firewall is blocking it
Please follow the steps in Section 1 and Section 2 prior to configuring file sharing
This guide will walk you through sharing files on t he control with a PC In order to do this you are
going to configure something called a Samba server to run on the control
First start Yast again
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Now find the Samba Server module and click on it 17/24
Click on the first tab “Start Up” Choose Service Start During Boot and Open Port in Firewall
This will make the Samba server start automatically when the control is powered up The second
setting allows the samba server through the firewal l
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Click on the second tab It should already look like this By default the control has entries for ncfiles
and intercon directories Below are descriptions o f each column
• Status should be set to enabled if you want to sh are the entry
• Read Only controls the sharing permissions for the share If set to yes remote users can see
and read files but cannot change or add files to th e shared folder
• Name The name of the shared folder This is the n ame that the remote user PC will see
• Path The full path to the folder that will be sha red
• Comment a comment which is visible to the remote user
You can leave this page as it is if it looks like w hat is below If for any reason you want to change the
shared entries you can do so using the Add Edit a nd Delete buttons below
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The third tab should look like this You shouldn't have to change anything on this tab except the
NetBIOS Hostname
The NetBIOS Hostname is the name you want your control to have on the W indows network
By default it is set to centroid001 You can leave it alone if this will be the only control on the network
If there are multiple controls then each one needs to be given a unique NetBIOS Hostname
Remember what this name is because you will need to know it later
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You shouldn't need to change anything on the fourth or fifth tabs They are shown below for your
reference
Now you are done with the Samba Configuration Cli ck Ok and the settings will take effect
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Now that Samba is configured you need to set a password for your shares This can be done using the
command smbpasswd Press Alt F6 to open a terminal window Enter the command
smbpassword a
Type in the password you want to use for the networ k shares Be sure to remember this information It
is used to connect to the shared folders from your PC Your user name is root
Now your control is setup to share files with your PC In Windows you can add the shares as network
locations or you can map them as a network drive
When connected to the shared folders on the control
Your user name is root
Your password is the password you entered above usi ng smbpasswd a
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4 Sharing Files from a PC to the control
This section will guide you through configuring the control to access a network share on your network
If you don't already have a folder shared on your n etwork you can add one before continuing
To configure the control edit or create a file cal led cnc net which can be found in “/cncroot/c”
Bring up a terminal window by pressing Alt F6 then type
edit /cncroot/c/cnc net
Note On previous linux systems this file was calle d cnc10 net and lived in /cncroot/c/cnc10 or
/cncroot/c/cnc10t
The file format is still the same as the previous s ystems
//computer name/share name g “username=myname passw ord=mypassword”
computer name The name of the computer that has the shared folder
share name The name of the shared folder
g The drive letter that you want the control to use f or the shared folder In this example the
shared folder will be automatically mounted at /cnc root/g It will also show up in CNC10's Advanced
file menu as drive g
username The user name that you use to login to the PC that has the shared folder
password
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The password that you use to login to the PC that has the shared folder
Note the quotes comma and equal signs are import ant Type them the same as in the example
Save the file Then reboot the control The netwo rk share should be available from the advanced file
load menu The simplified load menu “From Lan” but ton navigates to the drive letter set in the Control
Configuration Screen Set this to the drive letter that you mapped to your network share
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