Digi CM 8 User Manual
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Digi CM 8 User Manual

8-port, 16-port, 32-port, and 48-port
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8-port, 16-port, 32-port, and 48-port
User Guide

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Summary of Contents for Digi CM 8

  • Page 1 Digi CM 8-port, 16-port, 32-port, and 48-port User Guide...
  • Page 2 Digi Technical Support: Digi offers multiple technical support plans and service packages to help our customers get the most out of their Digi product. For information on Technical Support plans and pricing, contact us at +1 952.912.3456 or visit www.digi.com/support.

  • Page 3: Table Of Contents

    Ways of accessing the Digi CM ports: overview ....... . .
  • Page 4 Add an Access List to the Digi CM Unit ....... .
  • Page 5 Access the Windows Server 2003 Console port from the Digi CM Unit’s GUI ......
  • Page 6 Setup the Digi CM Unit to support the Rackable Systems management card ......
  • Page 7 Save the configuration automatically ............. Automatically upgrade the Digi CM Unit’s firmware or configuration using TFTP ......
  • Page 8 DB-25 Male modem adapter (Digi 8-pack reorder P/N 76000670) ....... .
  • Page 9 ............12 Ways of accessing the Digi CM ports: overview .

  • Page 10: Overview

    PCMCIA card slot, for adding dialup modems or wireless network cards. Flash memory cards can be used to save port logs and backup configuration files. The Digi CM unit is available in 8-, 16-, 32- and 48-port models, in a 1U rackmount form factor. Feature summary...
  • Page 11 Access lists per port • Flash upgradeable • SSH sessions simultaneously on all ports • Secure Clustering - Single IP for multiple Digi CM devices • IP addresses per port • Find Me locator light (Digi CM 48-port) Digi CM User Guide...

  • Page 12: User Groups

    (read only) Port Admin User Root and admin usernames and passwords The Digi CM unit comes with two default users; root and system admin. The user names of the the Digi CM unit are case sensitive. User name Default password...

  • Page 13: Web Interface

    Ways to configure the Digi CM Web interface The web interface provides an easy way to configure the Digi CM unit. The root user and system administrator can configure all features through the web. Port administrators can configure ports, including port clustering, but cannot modify system settings. No other users can use the web interface for configuration.

  • Page 14: Command Line Interface

    The web interface menu provides easy and convenient access to ports. All users can access the menu by entering the the Digi CM unit IP address or host name in a web browser’s URL window. To access a port from the web interface, do the following: 1 Access the web interface.
  • Page 15 This comment is shown here.Select a port by clicking the icon in the C (Console) column. A Java applet or Telnet window opens with a login prompt. Digi CM User Guide...

  • Page 16: Port Access Menu

    2 Choose Serial port > Connection > Port access menu connection 3 Log in 1 Telnet to the Digi CM unit specifying its IP address and Telnet Any user can use this method. port 7000. (7000 is the default socket port for both Telnet and SSH) Example: telnet 192.168.15.7 7000...

  • Page 17: Direct Port Access

    192.168.15.7 -p 7003 where user-name is a user’s name, (7000 is the default socket port for both Telnet and ip-address is the Digi CM unit’s IP address and SSH) tcp-port is the Listening TCP port for a port http:// digicm.digi.comconnect.asp?t=CISCO.Router.port3...
  • Page 18 To open a sniff session: 1 Click Serial port > Connection. 2 Select the port you want to access. 3 Log in with your user name and password. 4 Enter the letter of the port escape sequence. Digi CM User Guide...

  • Page 19: Description Of Fields

    SNMP An SNMP MIB to configure the Digi CM unit is available to be downloaded from digi.com/support. Save and apply changes In the web interface, you can save and apply configuration changes in two ways. With the one-step method, you choose Save &...

  • Page 20: Two-Step: Save To Flash And Then Apply Changes

    .Locater light The Digi CM 48-port unit has a locater light on the front panel labeled Find Me. All other Digi CM units flash the serial port lights to indicate where the device is found. If you access the web interface, log in to the Digi CM unit, and scroll down the page, you will find additional links.
  • Page 21 ............25 Digi CM User Guide...

  • Page 22: Getting Started

    The default IP address is 192.168.161.5. 1 Connect the console port on the rear panel of the Digi CM unit to a serial port on a workstation using the Ethernet console cable and the appropriate console adapter packaged with the the Digi CM unit.

  • Page 23: Configure For Ssh

    Configure for SSH Note The the Digi CM unit supports Blowfish and 3DES encryption methods for SSH. Options The Port Access Menu and individual ports can be configured for SSH. Configure the Port Access Menu for SSH 1 Access the web interface.

  • Page 24: Configure A Port For Ssh

    2 Log in as root, admin, or a member of the port administration group. The default password for root is dbps, and the default password for admin is admin. 3 Under Serial port > Configuration. 5 Click Host mode configuration. 6 Specify SSH as the Protocol as shown in the following screenshot. Digi CM User Guide...

  • Page 25: Add, Edit, And Remove Users

    1 Access the web interface. 2 Log in as root or admin. The default password for root is dbps, and the default password for admin is admin. 3 Under the System administration heading click Users administration. Digi CM User Guide...

  • Page 26: About Shell Options

    For more information about configuring access rights for specific users see Configure user access privileges. About shell options The shell program selection determines the interface you see when establishing a Telnet or SSH session with the Digi CM unit. User Group Shell Program Options root command line...
  • Page 27 ............. . . 31 Digi CM User Guide...

  • Page 28: Install And Configure Pc Cards

    All compact-flash cards work with the Digi CM unit, but not all serial modem, wireless LAN, or regular LAN cards do. To see a list of compatible cards that have been tested with the Digi CM unit, visit the Digi support site at digi.com/products/consoleservers/digicm#productsupport.

  • Page 29: Add A Network Card

    6 Click Save to flash or Save & apply. Add a network card To install and configure a network card on the Digi CM unit, do the following. 1 Insert the card into the PC slot. 2 Access the web interface.

  • Page 30: Add A Wireless Lan Card

    If DHCP is active the IP address will appear after the configuration is saved and applied. Add a wireless LAN card To install and configure a wireless LAN card on the Digi CM unit, do the following. 1 Insert the card into the PC slot.

  • Page 31: Add A Serial Modem

    The modem must first be inserted and installed on your system before it can be used. To configure the modem do the following: 1 Access the web interface. 2 From the menu click Configuration under the PC card heading. Note The card is automatically discovered and a configuration menu is displayed. Digi CM User Guide...
  • Page 32 Install and configure PC cards Add a serial modem 3 Click Configure the detected card. 4 Edit any appropriate parameters and Click Save & apply. Digi CM User Guide...
  • Page 33 ............. 40 Digi CM User Guide...

  • Page 34: System Status And Port Logging

    System status and port logging Introduction Introduction The Digi CM unit provides four options for saving system and port logs: ▪ A syslog server ▪ An NFS server ▪ A compact-flash card ▪ The Digi CM unit ’s memory When memory is selected as the storage location, log files are saved to volatile memory, meaning files are lost when the power is turned off.

  • Page 35: Enable The Log Storage Location

    Enable/Disable encrypted secondary NFS server - If secondary server supports encrypted NFS server Encrypted secondary NFS server user - User name Encrypted secondary NFS server password - Password Confirm secondary NFS server password - Repeat password Digi CM User Guide...

  • Page 36: Alert For Nfs Server Disconnect

    2 Enter the Title of email and the Recipient's email address. 3 For an SNMP trap configuration select Enable NFS disconnection trap. 4 Select Enable for Use global SNMP configuration, and enter the IP information for Trap receiver settings. 5 Click Save & apply. Digi CM User Guide...

  • Page 37: Enable Syslog Server

    Digi CM unit used. The maximum settings for log file sizes are listed in the following table.

  • Page 38: Enable The Digi Cm Unit's Memory

    The Digi CM unit ’s memory is already enabled for port logging and needs to be configured only for system logs or port logs. When storing log files to the Digi CM unit’s local memory, a total of 3.5M is available.

  • Page 39: Configure System Logging

    3 Choose Enabled for System logging and the log buffer size. 4 From the System log storage location, choose the location from the drop down menu. The choices are dependent on what you have enabled and/or installed. The Digi CM unit ’s memory choice is always available.

  • Page 40: View System Logs

    If a serial port is configured for console server mode, the port logging feature can be enabled. Port logging allows you to save serial data to the memory of the Digi CM unit, a compact-flash card, a syslog server, or to an NFS server. If the memory is used for port logging, all data is cleared when the system’s power is turned off.
  • Page 41 Monitoring interval -The frequency in seconds to update the port log 5 Click Save & apply. Note When port logging is enabled, a Port Event Handling page is available to create alarm keywords and send alerts. See Alerts and notifications for more information. Digi CM User Guide...

  • Page 42: View Port Logs

    To view the port logs on the NFS server for port number 5, enter the following command: more /mnt/nfs/port5data Partial logfiles can also be viewed on the web interface by going to Serial port > Configuration > select a port # you want to view > Port logging. Digi CM User Guide...
  • Page 43 ..............54 Digi CM User Guide...

  • Page 44: Configure Ports

    When you use RealPort (configured on a per port basis) the Digi CM unit functionality is unavailable. That is to say that the Digi CM unit can be used for console management or for RealPort COM re- direction but not both. An example of RealPort use would be remote kernal debugging of Microsoft Windows Servers.

  • Page 45: Resetting Ports

    Automatic Device Recognition allows the Digi CM unit to evaluate the attached devices and populate the port title. Additionally the Digi CM unit can generate a SNMP trap or send an email in case the response of the device changes or it stops responding.

  • Page 46: Configure Automatic Device Recognition

    The commands to parse the system response are user customizable, so if a device is not recognized immediately by the Digi CM unit, add a rule to the file. If Passive detect is selected, no probe string is sent to the attached device but the port buffer is analyzed.

  • Page 47: Apply All Ports Settings

    Disable, you can still use the alarm feature. Port title - Manually entered or automatically populated title of the port. The Digi CM unit allows access to a port by using only the number of the port title, making it unnecessary to know the serial port number.

  • Page 48: Host Mode Configuration

    Console server mode Configuring a serial port as a console server creates a TCP socket on the Digi CM unit that listens for a Telnet or SSH client connection. When you connect to the TCP socket, you have access to the device attached to the serial port as though the device were connected directly to the network.

  • Page 49: Terminal Server Mode

    In terminal server mode, the Digi CM unit’s serial port is configured to wait for data from the device connected to the port. If data is detected, the Digi CM unit starts a TCP session as a Telnet or SSH client to a pre-defined server.

  • Page 50: Dial-In Terminal Server

    Dial-in terminal server mode is a combination of the terminal server mode and the dial-in modem mode. In the dial-in terminal server mode, the Digi CM unit assumes the serial port is connected to an external modem and is waiting for a dial-in connection from a remote site. When you dial-in using terminal applications, the Digi CM unit accepts the connection as a Telnet or SSH client to a pre- defined server.

  • Page 51: Configure Host Mode

    Telnet directly to the serial port using an IP address (without having to specify a TCP port). Listening TCP port - This is the TCP port you will specify when connecting directly to the port using Telnet or SSH. Protocol - The options are SSH, RawTCP, and Telnet. Digi CM User Guide...

  • Page 52: Supported Protocols

    Serial port parameters In attaching a serial device to the Digi CM unit’s serial port, the port parameters must match. The serial ports by default are enabled, meaning you have full access to the port. To configure the port parameters for the Digi CM unit, do the following: 1 Access the web interface.

  • Page 53: Dtr Behavior

    Digi CM unit to transfer data stored in the buffer. The Digi CM unit transfers data when the buffer is full using the TCP/IP protocol. However, if it is not full, the Digi CM unit will also transfer data dependent on the timeout value selected.

  • Page 54: Remote Ports

    Note If you want to use a Digi PortServer TS 2 as remote device you would configure: IP address as assigned, IP port 2001 for port 1 or 2002 for port 2 and telnet or 2501/ 2502 when using SSH as protocol.
  • Page 55 You can access a remote port just like any local port: - directly using the portnumber The parameters of the remote port are equivalent to regular serial ports. Enter any additional parameters for the remote and click Save & apply or Apply all changes. Digi CM User Guide...
  • Page 56 Configure alerts for Automatic Device Recognition (ADR) ....... . . 62 Digi CM User Guide...

  • Page 57: Alerts And Notifications

    System and port alerts can also be sent using SNMP traps. The Digi CM unit supports both versions 1 and 2 of the SNMP protocol. The main function of SNMP on the Digi CM unit is to allow a system administrator to query remote devices for information.

  • Page 58: Snmp Information

    Applications such as NMS (Network Management System) or an SNMP browser can exchange information with the Digi CM unit and control actions to the unit. The protocol functions defined for SNMP includes GET, SET, GET-Next, GET-Bulk, and TRAP. Below are the definitions of the protocol functions found in SNMP.

  • Page 59: Configure Snmp

    4 Enter Access control settings based on the following field descriptions: IP Address - Defines what applications can access the Digi CM unit’s SNMP agent to exchange information and control actions. If no IP addresses are listed, any application can access the SNMP agent.

  • Page 60: Manage The Snmp Protocol

    Manage the SNMP protocol The Digi CM unit ’s SNMP protocol can be managed using an NMS or SNMP browser. However, before the NMS or SNMP browser can access the data, the Access control settings must list the IP address of the host from which the browser is executed.
  • Page 61 Alerts and notifications Configure port event handling 5 Choose Save & apply. 6 Choose Port event handling. The following page appears. Digi CM User Guide...

  • Page 62: Configure Alerts For Automatic Device Recognition (Adr)

    Enter Name and email address where the email should be sent. Enter "Use global SNMP configuration" OR Enter the IP address of the trap receiver, the SNMP trap community and select the version 5 Complete configuration and choose Save & apply. Digi CM User Guide...

  • Page 63: User Administration

    ..............64 Digi CM User Guide...

  • Page 64: Administer Users

    Groups or Access lists. The difference between Groups and Access lists are that Groups are established in the operating system on the Digi CM unit and privileges are predefined such as Root or Admin and are used most often for configuration. Access lists allow access to the ports and are created by defining the privileges of the lists.

  • Page 65: Add An Access List To The Digi Cm Unit

    4. Add the users to the access list Note: The name field in the Access list allows you to add users that are not locally configured on the Digi CM unit but use a centralized authentication method like RADIUS, LDAP etc.
  • Page 66 (:), less than or greater than signs (< >), ampersand (&), spaces, or quotation marks. The at sign @ and period . are acceptable. The username on the Digi CM unit is case sensitive. Select group Group to which the user is assigned. Groups include Root, System Admin, Port Admin and User.
  • Page 67 ..........80 Digi CM User Guide...

  • Page 68: Configure Security And Authentication

    TCP ports, and interfaces. The functionality implemented is based on the Linux tool IP tables. The next scenario shows that access to the device connected to the Digi CM is allowed only on the .1 subnet. The device at 192.168.1.108 can access the device connected to the Digi CM because it is in the range allowed by the IP Filter rule.
  • Page 69 Configure security and authentication Configure network IP filtering It is also possible to enable or disable specific services of the Digi CM unit by creating IP Filtering rules: Telnet console (TCP/IP port 23) SSH console (TCP/IP port 22) Web configuration (TCP/IP port 80) The fields are described next: Interface - The name of the network interface through which a packet is received.
  • Page 70 • • ICMP Port - A TCP/IP port on the Digi CM unit that other hosts try to access. You can specify either one port, using a single value, or a range of ports in this form : port1:port2 where port1 defines the lowest port and port2 the highest port.
  • Page 71 The Invert option specifies that the rule applies to all addresses except those listed. ▪ The rule says to Drop traffic from all addresses not listed. Define access to the Digi CM unit using HTTP (port 80). ▪ Rule 3 blocks all traffic.

  • Page 72: Configure User Access Control

    Configure User Access Control Configure User Access Control Another method for controlling access to the serial ports on the Digi CM unit is the User Access Control configuration. You can set up this configuration either globally (using the All Ports option) or per port.

  • Page 73: Configure User Access Privileges

    The username is case-sensitive. In the next example, three users are configured on the Digi CM unit: Jeff, Tim and Paul. To give Tim and Paul read/write access and power access to this port, you could either: ▪...

  • Page 74: Restrict A User's Privileges

    4 Enter the privileges this user has. (Notice that <<Everyone>> has more access than Jeff does.) Note The usernames and passwords on the Digi CM unit are case-sensitive. Notice <<Everyone>> has access to Port, Monitor, and Power, while Jeff has access to only Monitor, with no Port or Power access.

  • Page 75: Sniff Session

    A sniff session enables multiple users to access a single serial port for viewing the data stream. Anyone who is registered for a sniff session can access a specific serial port — even if someone else is using the port. The Digi CM unit supports multiple concurrent sniff sessions. Digi CM User Guide...

  • Page 76: Security Profile

    Security Profile The Security Profile tab, available under System Administration > Security Profile, provides a centralized access for enforcing site-appropriate, minimum security parameters on the CM. These are the available control mechanisms: ▪ System Security Digi CM User Guide...

  • Page 77: System Security

    ▪ HTTPS Enables/disables access to the Digi CM using the Web interface. This service is enabled by default. If, however, the unit will be deployed outside a controlled LAN, HTTPS is often disabled to limit the number of services available.

  • Page 78: Authentication

    Enforce password history - Cannot reuse the last nine passwords Authentication The Digi CM unit supports multiple methods of user authentication, including local, TACACS+, RADIUS, RADIUS Down-Local, LDAP, Kerberos, and Custom PAM. The authentication protocol you use depends on your environment.

  • Page 79: Configure Authentication Methods For Port Access

    Local authentication service is used in addition to the RADIUS, LDAP, TACACS+ server, or Kerberos. These options are listed when you configure the Digi CM unit for authentication. To configure the Digi CM unit for authentication, do the following: 1 Access the web interface.

  • Page 80: Configure Authentication For The Web Server

    Linux servers as well as Microsoft Active Directory together with the LDAP gateway ADAM (Active Directory Application Mode). If the Digi CM unit authenticates against an LDAP directory, all users must be configured in one container. The Digi CM unit will extend the username using the LDAP search base and authenticate the user.

  • Page 81: Custom Pam Module

    Microsoft syntax. Custom PAM module The Digi CM unit supports custom PAM modules for remote authentication. This allows you to create your own authentication schema or use any other third party PAM module. The module must o be compiled for the Digi CM unit’s environment.

  • Page 82: Custom And Default Menus

    ..............86 Digi CM User Guide...

  • Page 83: Introduction

    Introduction Introduction The Digi CM unit has several default menus for easy configuration and access by different users. Depending on access privileges, the menus available are the Web Interface, Configuration Menu, and Port Access Menu. A Custom Menu feature for creating menus is also available through the web interface.

  • Page 84: Create Menu Names

    4 Click the hyperlink to the menu you just created. 5 From the drop down menu, select the way to Sort and Display items. 6 Click Save & apply. 7 Repeat as required to create additional menus. Digi CM User Guide...

  • Page 85: Add Menu Items

    Execute a custom command - Enter a customized command that is any valid command on the command line with acceptable user privileges. 4 Choose Apply. 5 Repeat this procedure to add more menu items. Digi CM User Guide...

  • Page 86: Assign Users To A Menu

    When you choose to connect to a specific port, you are prompted again for the username and password. There are multiple ways to access the PortAccess menu: ▪ Assigned IP address (see Configure host mode) ▪ TCP/IP port 7000 Digi CM User Guide...
  • Page 87 You can also change your own password by using the “P” Key. If the Digi CM unit is configured to be the master in a master-slave scenario, the “S” key will bring up a list of all slaves. Selecting a slave will then spawn a connection to the Port Access Menu of the slave.
  • Page 88 ..........90 Access the Windows Server 2003 Console port from the Digi CM Unit’s GUI .

  • Page 89: Microsoft Sac Support

    Services (EMS). Both the English and Japanese versions of SAC are now supported. When a server running Windows Server 2003 is connected to the Digi CM unit’s serial port, key SAC functions-- normally accessed from the command line--are available from a graphical user interface (GUI). SAC features accessible from this interface include: ▪...

  • Page 90: Setup The Windows Server 2003 Port

    Microsoft SAC support Setup the Windows Server 2003 port 2 Cable the console port on the Windows Server 2003 to the Digi CM unit’s port. See the information in About serial port cabling. 3 Set up the Digi CM unit for SAC support. See Setup the Digi CM Unit for SAC support.
  • Page 91 Microsoft SAC support Setup the Digi CM Unit for SAC support 6 Set other fields as appropriate. 7 Click Save & apply. 8 Configure serial port communication settings, by doing the following: a. Choose Serial port parameters from the menu.

  • Page 92: Access The Windows Server 2003 Console Port From The Digi Cm Unit's Gui

    A screen similar to the following appears. 4 Use the Digi CM unit’s GUI to perform SAC functions. The following table describes attributes of the controls on the GUI.
  • Page 93 Microsoft SAC support Access the Windows Server 2003 Console port from the Digi CM Unit’s GUI Field Description Connect Connects to the SAC console port via the command line interface. Restart Reboots the Microsoft Server 2003. Shutdown Shuts down the Microsoft Server 2003.
  • Page 94 ........... . . 106 Digi CM User Guide...

  • Page 95: Configure Virtual Kvm

    Introduction Introduction The Digi CM unit provides a method for gaining access to the graphical interface of a system using the network. Using this method, Virtual KVM, you specify a connection method and IP address to use to reach the system.

  • Page 96: Use Virtual Kvm With Remote Desktop Protocol

    Connect to a system through Virtual KVM using Remote Desktop Protocol Configure To set up Virtual KVM with Remote Desktop protocol, follow this procedure: 1 Access the Digi Passport Web interface and log in. 2 Choose Serial Port > Configuration. This window opens: 3 Choose the port you want to configure, and then select the Virtual KVM tab.
  • Page 97 If you are using Remote Desktop configuration and you want to use automatic IP address detection, configure the host mode for the port to MS SAC console before you configure the Virtual KVM feature for the port. For more information, see Setup the Digi CM Unit for SAC support. Digi CM User Guide...

  • Page 98: Connect To A System Through Virtual Kvm Using Remote Desktop Protocol

    A second message indicates that the second connection attempt succeeded. This is normal behavior if the applet does not find the Virtual KVM Assistant. For more information, see Virtual KVM Assistant. The application starts and you see a message that the connection succeeded: Digi CM User Guide...

  • Page 99: Use Virtual Kvm With Vnc Protocol

    Connect to a system through Virtual KVM using VNC Protocol Configure To configure Virtual KVM with VNC protocol, follow this procedure: 1 Access the Digi Passport Web interface and log in. 2 Choose Serial Port > Configuration. This window opens:...
  • Page 100 Use Virtual KVM with VNC protocol 3 Double-click the port you want to configure. A window similar to this one opens, showing the serial port number and title: 4 Select the Virtual KVM tab. This window opens: Digi CM User Guide...

  • Page 101: Connect To A System Through Virtual Kvm Using Vnc

    2 Click OK in each of the three Java confirmation request windows. The applet first checks whether the optional Virtual KVM Assistant is installed on the system: • If the applet is installed, it starts Virtual KVM Assistant to manage the connection. Digi CM User Guide...

  • Page 102: Use Virtual Kvm With X Window System Protocol And Xmanager Software

    Use Virtual KVM with X Window System Protocol and XManager software This section describes how to: ▪ Configure Virtual KVM with X Window System Protocol and XManager Software ▪ Connect to a system through Virtual KVM with X Window System Protocol and XManager Software Digi CM User Guide...

  • Page 103: Configure

    Configure To set up Virtual KVM with X Window System Protocol and XManager Software, follow this procedure. 1 Access the Digi Passport Web interface and log in. 2 Choose Serial Port > Configuration. You see this window: 3 Choose the port you want to configure.

  • Page 104: Connect To A System Through Virtual Kvm Using Xmanager

    If the applet is installed, it starts Virtual KVM Assistant to manage the connection. • If the applet is not installed, the attempt to launch the Virtual KVM assistant will fail, and the applet tries to launch the connection directly. Digi CM User Guide...

  • Page 105: Virtual Kvm Assistant

    Install programs for Virtual KVM. Virtual KVM Assistant Digi provides an optional tool, Virtual KVM Assistant, that can be loaded on a Windows or Linux system. When the Virtual KVM Assistant is loaded, it registers itself with the browser so it can manage requested connections.

  • Page 106: How The Virtual Kvm Assistant Works

    Windows XP/2000/NT ▪ Linux Users need to download the program to use it. The Digi Passport java applet automatically detects the program if it is present and in your path. Install programs for Virtual KVM Virtual KVM relies on software installed on the client system to provide access to the target system.

  • Page 107: Remote Desktop Protocol

    3 Under Console Root, right-click on Remote DesktopsAdd New ConnectionUse IP Address 127.0.0.1. 4 Right-click on 127.0.0.1New Window From Here Log In. To enable Remote Desktop on your Windows Server 2003 System, choose My ComputerRight ClickPropertiesRemoteEnable Remote Desktop on this Computer. VNC Viewer Client software needed Windows: Digi CM User Guide...

  • Page 108: Usage Notes

    Xmanager software. Make sure that X Window System is configured to allow for remote connections from your Client workstation’s IP address. Full documentation of Xmanager capabilities is included with the evaluation download. Digi CM User Guide...

  • Page 109: Rackable Systems Management Card

    ..............110 Setup the Digi CM Unit to support the Rackable Systems management card .

  • Page 110: Introduction

    Rackable Systems manufactures a management card that is built into some of their servers. It interfaces between the Digi CM unit and the server’s serial port. In normal mode, it allows transparent communication between the Digi CM unit and the server. After detecting an escape sequence, it allows you to control functions from the server independently of the main processor.

  • Page 111: Assign A Port Name

    3 Click on the icon in the M (Manage) column or on the title of the port to which the Rackable Server is connected. A screen similar to the following appears. 4 Use the Digi CM unit’s user interface to perform Rackable Systems Management Card functions. The following describes attributes of the user interface controls. Digi CM User Guide...
  • Page 112 Rackable Systems management card Setup the Digi CM Unit to support the Rackable Systems management card Field Description Control Power status The first column shows the current state. Three buttons are available to initiate an action to either, power on, power off or restart the server.
  • Page 113 Configure the baud rate used to communicate with the Rackable Systems settings Management Card. For this change to become effective reset or power-cycle the Management card, and be sure to switch the port settings in the Digi CM Baud Rate unit’s port settings.
  • Page 114 ......... . 118 Digi CM User Guide...

  • Page 115: Introduction

    In a dial-in terminal server mode, the Digi CM unit makes a TCP connection with either a Telnet or SSH client to a pre-defined server. RawTCP is also an option for dial-in users.
  • Page 116 Callback - For security reasons, the callback feature can be activated. If callback is enabled, the Digi CM unit does not accept any incoming calls. After the incoming call is rejected, a callback is initiated to the phone number configured in the “Dial-in modem callback phone number”.
  • Page 117 When using SNMP traps the global settings for IP address, Community and Version can be used, or specified separately. The Trap MIB can be downloaded from support.digi.com (select your product and go to Diagnostics, Utilities and MIBs). Digi CM User Guide...

  • Page 118: Add A Pc Modem

    6 Click Save & apply. Add a PC modem A PC card slot is provided on the front panel of the Digi CM unit. The following graphic has an arrow that indicates the PC card slot. To install and configure the PC modem on the Digi CM unit, do the following.
  • Page 119 SSH, RawTCP, and Telnet. Inactivity timeout - The timeout length ranges from 1 to 3600 seconds; 0 is unlimited timeout. Modem init string - Use the default string or enter your own string. 6 Click Save & apply. Digi CM User Guide...
  • Page 120 ........... . . 127 Cascade multiple Digi RPM units .

  • Page 121: Power Controller

    The second scenario is a serial device (such as a router or server) managed through a port on the Digi CM unit with its power supply mapped through the power control feature. After configuration is complete, you need only reference the console management port on the Digi CM unit to also manage power.

  • Page 122: Install Power Controller

    To connect the Digi RPM power controller to the Digi CM unit use the straight-thru cable provided with the Digi RPM unit. Plug one side into the “Console” port of the Digi RPM unit and the other into any port of the Digi CM unit. If you plan to connect multiple power controllers, set up all of them as described before proceeding.

  • Page 123: Set Alarms And Thresholds

    8 Under Power Controller click Alarms & thresholds. 9 Enter the appropriate parameters. Select the condition(s) for an alert and enter the information for the alert (email, SNMP trap, or select both). Digi CM User Guide...

  • Page 124: Outlet Configuration

    1 From Power controller, click Outlets. 2 Click the outlet number to configure. 3 Select the serial port number that controls the device connected to the Digi CM unit (if any). If the port number has a title, it will appear.

  • Page 125: User Access For Power Controller

    6 Click Save & apply. Note The screen above shows that serial port one on the Digi CM unit is connected to a Sun Server that is supplied power from outlets 1 and 2 on the power controller. In the example above, Gilligan has access to the power outlets.

  • Page 126: Configure To Restrict Specific Users

    The screen above shows outlets 1 & 2 control power to the Sun Server configured on port 1 of the Digi CM unit. Outlets 3 and 4 are not serial devices. Gilligan has been designated the specific user to control outlet # 3.

  • Page 127: Power Controller Management

    The Port # and Manufacturer fields are a link to the specific power controller statistic page, which displays information for the power controller. If the status is ‘Disconnected’ the links are inactive. 2 Click either the Port # or the power controller title. Digi CM User Guide...

  • Page 128: Cascade Multiple Digi Rpm Units

    ID. To cascade the Digi RPM units, connect a serial port of the Digi CM unit to the Console Port of the first Digi RPM unit using a straight-thru cable. Connect the “Cascade” Port of the first Digi RPM unit to the “Console”...
  • Page 129 Power Controller Cascade multiple Digi RPM units The following table shows all possible IDs that can be configured on the Digi RPM. unit. Digi CM User Guide...
  • Page 130 Power Controller Cascade multiple Digi RPM units Digi CM User Guide...

  • Page 131: Port Clustering

    ............132 Digi CM User Guide...

  • Page 132: Introduction

    Assign master clustering mode To assign a Digi CM unit as the master cluster device, do the following: 1 Access the Digi CM unit through the web interface. This Digi CM unit needs to be the unit you want as the Master.

  • Page 133: Configure Slaves To Join A Cluster

    4 Choose Save & apply. Configure slaves to join a cluster Digi CM units can be configured as basic slaves without any additional configuration. Two additional settings, however, enhance the clustering capability. Authentication mode - Local authentication is the slave independently authenticating all port access.

  • Page 134: Advanced Clustering Configuration

    The first slave port defaults to 7100 for the port access menu and the port numbers increase according to the number of ports on the Digi CM unit. Destination port - The destination port is the corresponding port number on the slave unit. On a 32-port slave unit, the destination port numbers range from 7001 to 7032.

  • Page 135: Access The Cluster Ports

    3 Enter the port escape sequence (listed on page). Telnet 1 Telnet to the IP and the port number of the device. telnet 143.191.3.9 7101 2 Login and enter your password. root dbps 3 Enter the port escape sequence (listed on page). Digi CM User Guide...
  • Page 136 1 Click on the port with SSH protocol 2 Login 3 Enter the port escape sequence (listed on the page) Depending on your access rights you can sniff (read only) or monitor (read/write), or manage power of the ports. Digi CM User Guide...

  • Page 137: System Administration

    ............138 Automatically upgrade the Digi CM Unit’s firmware or configuration using TFTP .

  • Page 138: Introduction

    Upgrade the firmware Web interface The web interface allows you to download the latest firmware version to the Digi CM unit. The latest firmware can be found at: https://www.digi.com/products/consoleservers/digicm#productsupport. Do the following to upgrade the firmware: 1 Access the web interface.

  • Page 139: Save The Configuration Automatically

    The email address to send the configuration file. To setup the automatic backup option follow the procedure. 1 Select Periodic or 10 minutes after latest change from the drop down menu. 2 Select the location to save the file. Digi CM User Guide...

  • Page 140: Automatically Upgrade The Digi Cm Unit's Firmware Or Configuration Using Tftp

    The Digi CM unit supports upgrading the firmware, configuration, or any other files in the file system using a TFTP-based mechanism. During boot, the Digi CM unit can verify a “hash” file and determine if it needs to download upgrades from the TFTP server.

  • Page 141: Directly Configure The Tftp Server And The Name Of The Hash File

    Automatically upgrade the Digi CM Unit’s firmware or configuration using TFTP Directly configure the TFTP Server and the name of the hash file To configure the IP address of the TFTP server and the filename of the hash file on the Digi CM unit, follow the steps below: 1 Click System administration >...
  • Page 142 <version> the version number of the firmware The Digi CM unit will download the configuration if the version in the hash file is different from the version saved in the file /tmp/cnf/.cnfversion. This file does not exist until you do the first automatic configuration upgrade.

  • Page 143: Reset Factory Defaults

    Digi CM 32 shown The alternative method to reset the unit is through the web interface. The web interface provides the option of retaining the IP settings. To use the web interface to reset the Digi CM unit, do the following: 1 Access the web interface.

  • Page 144: Set The Date And Time

    Set the date and time The Digi CM unit provides two options for keeping system time. The first is by using an NTP server and the other is through an internal battery backup. To configure the Digi CM unit for date and time, do the following: 1 Access the web interface.
  • Page 145 System administration Configure a host name 3 Enter the name you want to assign the Digi CM unit. 4 Choose Save & apply. Digi CM User Guide...
  • Page 146 ............. . 152 Digi CM User Guide...

  • Page 147: Command Line Interface

    Before editing any files, be sure to back up your configuration files. Linux commands The purpose of this section is to list the various Linux commands available on the Digi CM unit. This is simply a listing of commands and does not detail what the commands do or give their particular parameters.

  • Page 148: Important File Locations

    Important file locations The Digi CM unit has several files that are important for administrative use. Below is a brief listing of some files that the root user or system administrator might desire to either monitor or edit. Default script The default script file is executed whenever the Digi CM unit is booted.
  • Page 149 Private key for SSH with key certification information shadow Secure password file snmpd.conf SNMP information ./.ssh Directory for SSH information system.cnf Basic network config information (IP, gateway, etc.) timezone Time zone configuration ./.usracctl Directory containing user access control information version Firmware version Digi CM User Guide...

  • Page 150: User Storage Space

    Example scripts User storage space The Digi CM unit comes with 1 megabyte of user storage space. This storage space can be used to store custom scripts. The location is /usr2. Custom scripts such as simple commands, are simply dropped into /usr2. If a file needs to be edited, copy the file into usr2/rc.usr, kill the process, then restart the process from the new file.
  • Page 151 Example script: Sending a break from an existing session with the Digi CM unit from a Telnet session If the Telnet was initiated from a UNIX command line Telnet client. Issuing the Telnet escape sequence '^]' (control-right_square_bracket) will take you to the 'telnet>' prompt.

  • Page 152: User Administration

    501 = Port admin 502 = Standard User These are the three types of groups supported by the Digi CM unit. You must use one of these. shellprogram = Options are: CLI (Command Line Interface), Config menu, Port access menu, or Custom menu.
  • Page 153 User administration Note All other Digi CM units have the locator feature without a Find Me LED. To identify another Digi CM unit, all the LEDs blink when the feature is activated. The file and syntax for the locator LED is /bin/blinkled [start|stop]...

  • Page 154: Configuration Menu

    ........... . 174 Digi CM User Guide...

  • Page 155: Introduction To The Configuration Menu

    The only functionality missing from the configuration menu is the ability to create custom menus. 1 Telnet into the Digi CM unit. The root user, by default, is connected from a Telnet session to the Linux command line.

  • Page 156: Add, Edit, And Remove Users

    4 Choose Exit and apply changes. Add and configure a PC card To add a modem card, compact-flash card, wireless LAN card, or a network card to the Digi CM unit using the configuration menu, do the following: 1 Access the configuration menu.

  • Page 157: Host Mode Configuration

    4 Use the ESC key to back out to the main configuration menu. 5 Choose Save Changes. Host Mode Configuration 1 Access the configuration menu. 2 Choose Serial Port Configuration > an individual port number or 0 (zero) for all ports > Host Mode Configuration. Digi CM User Guide...

  • Page 158: Port Parameters

    Port Access Menu Another default menu is the Port Access Menu, which is available to all users. 1 Access Configuration menu 2 Select Serial Port Configuration. 3 Select 0 for all ports. 4 Select Port access menu configuration. Digi CM User Guide...

  • Page 159: System Logging

    Configuration menu System logging You can access this menu through a Telnet or SSH session using the IP address of the Digi CM unit followed by the port number 7000 as in the following example: telnet 192.168.100.200 7000 By default root is connected to the command line interface and the preceding option allows the root user access to the port access menu.

  • Page 160: Configure System Logging

    2 Choose Network Configuration > SNMP configuration. 3 Enter the desired parameters for the menu items. 4 Use the ESC key when all parameters are entered to return to the main menu. 5 Choose Save changes. Digi CM User Guide...

  • Page 161: Configure Smtp

    4 Use the ESC key when all parameters are entered to return to the main menu. 5 Choose Save changes. Network IP filtering To configure the Digi CM unit for Network IP filtering, do the following: 1 Access the configuration menu. 2 Choose Network configuration > IP filtering.

  • Page 162: Port Ip Filtering

    4 Use the ESC key to return to the main menu. 5 Choose Save changes. Port IP filtering To configure the Digi CM unit for Port IP filtering, do the following: 1 Access the configuration menu. 2 Choose Serial port configuration.

  • Page 163: Sniff Sessions

    6 Choose a menu item and enter the desired parameters. 7 Use the ESC key when all parameters are entered to return to the main menu. 8 Choose Save changes. For information on entering a sniff session, see the next section, View a sniff session. Digi CM User Guide...

  • Page 164: View A Sniff Session

    A sniff user enters a sniff session by starting a Telnet session on a specified port. In the following example, a sniff user telnets to port 7 of the Digi CM unit. From the command prompt enter the following command: telnet 192.168.100.42 7007...

  • Page 165: Authentication

    2 Choose Serial port configuration. 3 Choose an individual port number or 0 (zero) for all ports > Authentication. 4 Choose Authentication type. 5 Use the ESC key to return to the main menu. 6 Choose Save changes. Digi CM User Guide...

  • Page 166: Upload Server Certificate

    To upload your own certificate, you can use one of following two methods, 1 Use Upload Server Certificate menu. Note that this menu is displayed only when you run configmenu on the serial console of the Digi CM unit. (configmenu run on CLI via Telnet or SHI will not display this menu) 2 Copy your own server.pem file to /tmp/cnf/ using scp.

  • Page 167: Make A Certificate Request

    # openssl req -new -key key.pem -out req.pem It is assumed that you are using sample configuration file - "openssl.conf.digi" ) 3 Use configuration from /usr/share/ssl/openssl.cnf You are about to be asked to enter information that will be incorporated Digi CM User Guide...

  • Page 168: Sign A Certificate Request

    Digi International Organization Name (eg, company): Organizational Unit Name (eg, section) [](Enter) Common Name (eg, YOUR name or your server’s hostname) []: Digi CM Email Address []:(Enter) Enter the following 'extra' attributes to be sent with your certificate request A challenge password []:(Press Enter - Do not enter any other...

  • Page 169: Make Certificate For The Digi Cm Unit

    Signed certificate is in newcert.pem 4 Verify signed certificate(newcert.pem) is generated. # ls demoCA key.pem newcert.pem newreq.pem req.pem Make certificate for the Digi CM Unit Removing headings in newcert.pem file # cd /work/openssl-0.9.7c/CA # cp newcert.pem server.pem # vi server.pem...

  • Page 170: Dial-In Modem Access

    Individual serial ports on the Digi CM unit can be configured for a dial-in terminal server access. To use dial-in terminal server access, an external modem is first attached to a serial port on the Digi CM Digi CM User Guide...

  • Page 171: Clustering

    Before you start this configuration procedure, the slave units should already be configured unless you want them set to the default values. To set up the Digi CM unit for clustering, do the following: 1 Access the configuration menu.

  • Page 172: Firmware Upgrade

    Downloaded the firmware to a system on the same subnet ▪ Set up a terminal emulation program that supports Zmodem transfer protocol To upgrade the firmware with the configuration menu, do the following: 1 Access the configuration menu. 2 Choose System administration. Digi CM User Guide...

  • Page 173: Restore Factory Defaults

    3 Choose Firmware upgrade. Enter y for Yes when asked if you want to upgrade the firmware. If the firmware upgrade is successful, the Digi CM unit will reboot automatically. If a Firmware upgrade failed! Warning appears, do not reboot the unit but repeat the upgrade process.

  • Page 174: Set The Date And Time

    Set the date and time Set the date and time Date and time on the Digi CM unit can either be kept internally or by an NTP server. To set the parameters for date and time on the Digi CM unit, do the following: 1 Access the configuration menu.
  • Page 175 BOOTP server. To use the Boot Loader program to flash new firmware, do the following: 1 Connect the console port on the rear panel of the Digi CM unit to a serial port on a workstation. Use an Ethernet cable with a DB-9 adapter.
  • Page 176 Configuration menu Access the Boot Loader program 10 Choose Exit and boot from flash. Digi CM User Guide...

  • Page 177: Hardware Information

    ............186 Digi CM User Guide...

  • Page 178: Introduction

    Hardware information Introduction Introduction This section provides information on Digi CM hardware. Among the topics covered are the hardware specifications, LED descriptions, pinouts for the Ethernet cable, pinouts for the cable adapters, and rack mounting specifications. Hardware specifications Digi CM 48...

  • Page 179: Digi Cm 16 And Digi Cm 32

    Hardware information Hardware specifications Digi CM 16 and Digi CM 32 AC Powered DC Powered Attribute Value Value Operating 40°F to 120°F (5°C to 50°C) 40°F to 120°F (5°C to 50°C) temperature Storage -20°F to 140°F (-29°C to 60°C) -20°F to 140°F (-29°C to 60°C)

  • Page 180: Led Indicators

    9.5” x 6.25” x 1.25” (241.3 cm 158.75 x 31.75 cm) Weight 2.5 lbs (1.13 kilograms) LED indicators Use the LED indicators to confirm your attachment to the network and that the Digi CM unit is able to send and receive data. Function System...

  • Page 181: Serial Port Pinouts

    Hardware information Serial port pinouts Serial port pinouts The Digi CM unit uses an RJ-45 connector for serial ports. Pin assignments are listed in the following table. Description DCD Note: Inbound signal can also be used as a second ground.

  • Page 182: Db-9 Female Console Adapter

    Cable adapters RJ-45 Signal DB-25M Signal Connected to Connected to Connected to DB-9 Female console adapter (Digi 8-pack reorder P/N 76000671) Pin #1 Pin #5 Pin #1 Pin #6 Pin #8 DB-9 Female to RJ-45 pin assignments RJ-45 Signal DB-9F...

  • Page 183: Db-25 Female Console Adapter

    Hardware information Cable adapters DB-25 Female console adapter (Digi 8-pack reorder P/N 76000673) Pin #1 Pin#13 Pin#25 DB-25 Female to RJ-45 pin assignments RJ-45 Signal DB-25M Signal Connected to Connected to Connected to Connected to Connected to Connected to Connected to...

  • Page 184: Male Modem Adapter (Digi 8-Pack Reorder P/N 76000670)

    Hardware information Cable adapters DB-25 Male modem adapter (Digi 8-pack reorder P/N 76000670) Pin #13 Pin #1 Pin #25 DB-25 Male modem to RJ-45 pin assignment RJ-45 Signal DB-25M Signal Connected to Connected to Connected to Connected to Connected to...

  • Page 185: Male Modem Adapter (Digi 8-Pack Reorder P/N 76000702)

    Connected to Connected to Connected to Connected to Connected to Connected to Connected to Ethernet pinouts The Digi CM unit uses a standard Ethernet connector, that is a shielded and compliant with AT&T 258 specifications. Description Digi CM User Guide...

  • Page 186: Rack Mounting Installation

    Digi CM unit. 1 Attach enclosed bracket ears to rack as shown in illustration. 2 Follow safety precautions when placing the Digi CM unit on the rack. Rack mounting safety precautions ▪ Distribute weight evenly in the rack to avoid overloading.

  • Page 187: Certifications

    ................188 Power and ground - Digi CM 48 single and dual power .

  • Page 188: Safety

    Europe: EN60950 (CB Scheme Report) Working inside the Digi CM Unit NOTICE: Do not attempt to service the Digi CM unit yourself, except when following the instructions from Technical Support personnel. In such a case, first perform the following actions: ▪...

  • Page 189: Environmental Considerations And Cautions

    (a power supply that cannot be interrupted) power supply. ▪ Be sure that nothing rests on the Digi CM unit cables and that the cables are not located where they can be stepped on or tripped over. ▪...

  • Page 190: Power And Ground - Digi Cm 48 Single And Dual Power

    Certifications Power and ground - Digi CM 48 single and dual power ▪ Do not push objects into the openings of the Digi CM unit. Doing so can cause fire or electric shock by shorting out interior components. ▪ Keep the Digi CM unit away from heat sources and do not block cooling vents.

This manual is also suitable for:

Cm 16Cm 48Cm 32

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