Using the J-Web Interface

This section contains the following topics:

• Starting the J-Web Interface
• J-Web Layout
• Using the Commit Options to Commit Configuration Changes on J-Web
• Getting J-Web Help

For more information about using the J-Web interface, see the J-Web Interface User Guide.

Starting the J-Web Interface

Note: On SRX210, SRX220, SRX240, and SRX650 devices, the maximum number of concurrent Web sessions is as follows: SRX220 3

To start the J-Web interface:

1. Launch your HTTP-enabled or HTTPS-enabled Web browser.

   To use HTTPS, you must have installed the certificate provided by the device.

   Note: If the device is running the worldwide version of the Junos OS and you are using the Microsoft Internet Explorer Web browser, you must disable the Use SSL 3.0 option in the Web browser to access the device.

2. After typing http:// or https:// in your Web browser, type the hostname or IP address of the device and press Enter.

   The J-Web login page appears.

3. On the login page, type your username and password, and click Log In.

   To correct or change the username or password you typed, click Reset, type the new entry or entries, and click Log In.

   Note: The default username is root with no password. You must change this during initial configuration or the system does not accept the configuration.

To explicitly terminate a J-Web session at any time, click Logout in the top pane.

J-Web Layout

The top pane of the J-Web user interface comprises the following elements:

• hostname–model—The hostname and model of the device are displayed in the upper-left corner.
• Logged in as: username—The username you used to log in to the device is displayed in the upper-left corner.
• Chassis— Displays the chassis view of the device.
• Commit Options— A set of global options that allow you commit multiple changes at the same time.
  • Commit—Commits the candidate configuration of the current user session, along with changes from other user sessions.
  • Compare—Displays the XML log of pending uncommitted configurations on the device.
  • Discard—Discards the candidate configuration of the current user session, along with changes from other user sessions.

  • Preference—Indicates your choice of committing all global configurations together or committing each configuration change immediately. The two behavior modes to which you can set your commit options are:

    • Validate and commit configuration changes—Sets the system to force an immediate commit on every screen after every configuration change.
    • Validate configuration changes—Loads all the configuration changes for an accumulated single commit. If there are errors in loading the configuration, the errors are logged. This is the default mode.
• Help—Displays links to information on Help and the J-Web interface.
  • Help Contents—View context-sensitive Help topics.
  • About—Displays information about the J-Web interface, such as the version number.
• Logout—The Logout link, which ends your current login session and returns you to the login page, is available in the upper-right corner.
• Taskbar— A menu of J-Web tasks is displayed as tabs across the top of the J-Web user interface. Select a J-Web task to access it.
  • Dashboard— Displays the information of the system.
  • Configure—Configure the device and view configuration history.
  • Monitor—View information about configuration and hardware on the device.
  • Maintain—Manage files and licenses, upgrade software, and reboot the device.
  • Troubleshoot—Troubleshoot network connectivity problems.

The main pane of the J-Web user interface includes the following elements to help you configure the device:

• Red asterisk (*)—A red asterisk is displayed next to all required fields.
• Help (?) icon—The Help icon displays useful information when you move the cursor over the question mark. This Help displays field-specific information, such as the definition, format, and valid range of the field.

The left pane of the J-Web user interface displays subtasks related to the selected task in the J-Web taskbar.

Using the Commit Options to Commit Configuration Changes on J-Web

You can configure the commit options to either commit all global configurations together or to commit each configuration change immediately using the J-Web Commit Preference. Do one of the following to commit a configuration:

• If Commit Preference is Validate and commit configuration changes, click OK.
• If Commit Preference is Validate configuration changes, click OK to check your configuration and save it as a candidate configuration, then click Commit Options>Commit.

For example, you want to delete a firewall and add a new one.

• If Commit Preference is Validate and commit configuration changes, you would need to commit your changes twice for each action.
• If Commit Preference is Validate configuration changes, you work in a copy of the current configuration to create a candidate configuration. The changes you make to the candidate configuration are visible through the user interface immediately, allowing other users to edit those configurations, but the changes do not take effect on the device platform until you commit them. When you commit the configuration, the candidate file is checked for proper syntax, activated, and marked as the current, operational software configuration file. If multiple users are editing the configuration when you commit the candidate configuration, changes made by all the users take effect.

You use the single commit feature to commit all your configurations in J-Web simultaneously. This helps in reducing the time J-Web takes for committing configurations because when changes are committed at every step, rollback configurations pile up quickly.

Tip: If you end a session with a particular Commit Preference, the subsequent sessions for that particular browser will automatically come up with the preference you previously selected. If you start the subsequent session on a different browser, the session will come up with the default commit preference.

Note: There are some screens whose configurations would need to be committed immediately. For such screens, even if you configure the commit options to perform a single global commit for such screens, the system displays appropriate information notification windows to remind you to commit your changes immediately. Examples of such screens are Switching, Interfaces, and Class of Service.

Getting J-Web Help

To get Help in the J-Web interface, use the following methods:

• Field-sensitive Help—Move the cursor over the question mark (?) next to the field for which you want more information. The system displays useful information about the field. Typically, this Help includes one line of information about what this field does or what you must enter in a given text box. For example, Help for the Peer Autonomous System Number text box states, “the value should be a number between 1 and 65535.”
• Context-sensitive Help—Click Help in the taskbar to open a separate page displaying the summary of all the fields on that page. To exit Help, close the page. You can navigate Help pages using hypertext links connecting related topics, or click the following options (if available) at the top and bottom of each page.
  • Prev— Access the previous page.
  • Next—Access the next page.
  • Report an Error—Access a form for providing feedback.