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eSight V300R010C00SPC200, 300, and 500 Local HA System Software Installation Guide (SUSE Linux + Oracle + Veritas) 10

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What Can I Do If the Tool Window Is Not Displayed in the SUSE Linux Operating System

What Can I Do If the Tool Window Is Not Displayed in the SUSE Linux Operating System

Question

What can I do if the tool window is not displayed in the Linux operating system?

Answer

In the Linux operating system, you need log in to the server through the management interface or VNC and use a terminal to perform related operations. If the tool window cannot be displayed when you use the tool, perform the following operations:

  • Scenario 1: Use the SSH connection tool to log in to the eSight server.
    1. Ensure that the tool supports remote graphical user interface (GUI).

      The GUI can be displayed only when the SSH connection tool supports remote GUI. By default, the PuTTY and SecureCRT do not support remote GUI, and the mobaXterm support remote GUI. For the SSH connection tool that supports remote GUI, enable the X11 forwarding function. For details, see the tool description.

    2. Check the value of the environment variable DISPLAY.

      # echo $DISPLAY

      localhost:10.0
    3. If no result is displayed, assign a value to the environment variable DISPLAY.

      a. Check the terminal ID.

      # tty

      /dev/pts/0

      b. Check the IP address of the SSH connection tool based on the terminal ID.

      # w

      USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
      ossuser  pts/0    192.168.1.100    15:16    1.00s  0.10s  0.04s sshd: ossuser [priv]
      ossuser  pts/1    10.120.123.100   15:26    1:53   0.04s  0.04s -bash

      c. Set the DISPLAY environment variable based on the IP address.

      For example, if the IP address is 192.168.1.100, run the following command:

      # export DISPLAY=192.168.1.100:0.0

      d. Test the settings.

      Run the following command:

      # xclock

      If the clock window is displayed, the GUI can be displayed. Close the clock window.

  • Scenario 2: Log in to the eSight server as the ossuser user or a non-root user using the management interface or VNC.
    1. Exit the opened terminal simulator (such as Gnome Shell) and restart the terminal simulator. Then, perform the required operations.
    2. If you need to switch to the root user, run the su - root command after step 1 is complete.
    3. Do not run the su command frequently.
  • Scenario 3: Log in to the eSight server as the root user using the management interface or VNC.
    1. Exit the opened terminal simulator (such as Gnome Shell) and restart the terminal simulator. Then, perform the required operations.
    2. If you need to switch to another user (such as the ossuser user), run the ssh -X ossuser@127.0.0.1 command and enter the password. Otherwise, you can log in to the server directly.
    3. Do not run the su command frequently.
  • Scenario 4: Use the management interface or VNC to log in to the eSight server and switch to a user that cannot log in to the eSight server, such as the oracle user.

    Some users cannot log in to the server directly. You need to log in to the server as another user and switch to the user. The following describes how to log in to the Linux server as the root user and switch to the oracle user:

    1. Run the following command to turn off the GUI access control for non-root users:

      # xhost +

    2. Switch to the oracle user.

      # su - oracle

    3. Set the DISPLAY environment variable.

      > export DISPLAY=:0.0

  • Some operating systems do not support the GUI. In this case, the tool window cannot be displayed.
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Updated: 2019-10-30

Document ID: EDOC1100044372

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