Cisco Unified Communications Operating System Administration Guide, Release 9.0(1)
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Settings

You can view and update the following operating system settings:

  • IP—the IP addresses and Dynamic Host Configuration Protocol (DHCP) client settings that were entered when the application was installed.
  • SMTP—the SMTP host that the operating system uses for sending email notifications.

This section also describes how to change time settings and correct time zone data.

IP settings

Change Ethernet settings

You can determine whether Dynamic Host Configuration Protocol (DHCP) is active and locate the related Ethernet IP addresses, as well as the IP address for the network gateway.

Before You Begin
  • All Ethernet settings apply only to Eth0. You cannot configure any settings for Eth1. The Maximum Transmission Unit (MTU) on Eth0 defaults to 1500.
  • Changing the Ethernet settings causes an immediate system restart.
Procedure
    Step 1   Sign in to Cisco Unified IM and Presence Operating System Administration.
    Step 2   Select Settings > IP > Ethernet.
    Step 3   Enter the new values in the appropriate fields to modify the Ethernet settings.
    Table 1 Ethernet Settings Fields and Descriptions

    Field

    Description

    DHCP

    Indicates whether DHCP is Enabled or Disabled.

    Hostname

    Shows the name of the host server.

    Note   

    You can only change the hostname after changes to these configuration settings are complete:

    • DNS
    • Cisco Unified Communications Manager Application Server List
    • IM and Presence Topology

    IP Address

    Shows the IP address of the system.

    Note   

    Changing the IP address or host on the IM and Presence publisher server can affect system performance.

    Subnet Mask

    Shows the IP subnet mask address.

    Default Gateway

    Shows the IP address of the network gateway.

    Troubleshooting Tips

    If you enable DHCP, the system disables the Port and Gateway setting and it cannot be changed.

    Change IP publisher node address on subsequent nodes

    If, for network configuration purposes, you changed the IP address or hostname on the IM and Presence publisher node, then you will need to update the IP address of the publisher node on subsequent nodes in IM and Presence.

    Before You Begin

    Use this functionality only if you want a subsequent node in IM and Presence to point to a different IM and Presence publisher node. If this node is the IM and Presence publisher node, be aware that you cannot use this window to change the IP address.

    Procedure
      Step 1   Sign in to Cisco Unified IM and Presence Operating System Administration.
      Step 2   Select Settings > IP > Publisher.
      Step 3   Enter the new Publisher IP address.
      Step 4   (Optional) Following a fresh installation of IM and Presence, you can change the IP address of the Cisco Unified Communications Manager publisher server. Select System > CUCM Publisher in Cisco Unified CM IM and Presence Administration.
      Related Tasks

      Troubleshoot IP publisher node address change on subsequent node

      Before You Begin

      If the IP address of the IM and Presence publisher node changes while a subsequent node is offline, be aware that you may not be able to sign in to Cisco Unified CM IM and Presence Administration on the subsequent node. Complete this procedure if IM and Presence does not function properly.

      Procedure
        Step 1   Sign in directly to Cisco Unified IM and Presence Operating System Administration on the subsequent node by using the following URL:http://server-name/cmplatform where server-name specifies the hostname or IP address of the subsequent node.
        Step 2   Enter your Administrator user name and password and select Submit.
        Step 3   Select Settings > IP > Publisher.
        Step 4   Enter the new IP address for the publisher server and select Save.
        Step 5   Restart the subsequent node.
        Related Tasks

        NTP settings

        By design, you cannot configure or change the NTP server following a fresh installation of the IM and Presence Service.

        Change SMTP settings

        Before You Begin

        You must configure an SMTP host if you want the system to send you email, for example, from the Certificate Expiry Monitor.

        Procedure
          Step 1   Sign in to Cisco Unified IM and Presence Operating System Administration.
          Step 2   Select Settings > SMTP.
          Step 3   Enter or modify the SMTP hostname or IP address.

          Change time settings

          You can manually configure the server time if NTP is currently disabled.

          Before You Begin

          Before you can manually configure the server time, you must delete any NTP servers that you have configured.

          Procedure
            Step 1   Sign in to Cisco Unified IM and Presence Operating System Administration.
            Step 2   Select Settings > Time.
            Step 3   Enter the date and time for the system.
            Related Tasks
            Related Information

            Correct time zone data

            The IM and Presence Service includes the latest time zone information and Cisco contacts you about major time zone events. After you install the IM and Presence Service, you can download a COP file with the latest updates. For more information on how to correctly upgrade your time zone data, see the Release Notes for Cisco Unified Communications Manager on Cisco.com.