In the navigation pane, click System, and then click Settings.

In the details pane, under Modes and Features, click Configure basic features.

In the Configure Basic Features dialog box, select the Rewrite check box, and then click OK.

In the Enable/Disable Feature(s) dialog box, click Yes. A message appears in the status bar, stating that the selected feature was enabled.

Navigate to AppExpert > Rewrite > Actions.

In the details pane, do one of the following:

Click Create or OK. A message appears in the status bar, stating that the Action has been configured successfully.

Repeat steps 2 through 4 to create or modify as many rewrite actions as you want.

Click Close.

In the Create Rewrite Action or Configure Rewrite Action dialog box, under the text area for the type argument you want to enter, click Add.

In the Add Expression dialog box, in the first list box choose the first term for your expression.

In the second list box, choose the second term for your expression. The choices depend upon which choice you made in the previous step, and are appropriate to the context. After you make your second choice, the Help window below the Construct Expression window (which was blank) displays help describing the purpose and use of the term you just chose.

Continue choosing terms from the list boxes that appear to the right of the previous list box, or typing strings or numbers in the text boxes that appear to prompt you to enter a value, until your expression is finished. For more information about the PI expressions language and creating expressions for responder policies, see "Policies and Expressions."

In the Rewrite Actions details pane, select the rewrite action that you want to evaluate, and then click Evaluate.

In the Rewrite Expression Evaluator dialog box, specify values for the following parameters. (An asterisk indicates a required parameter.)

Rewrite Action—If the rewrite action you want to evaluate is not already selected, select it from the drop-down list. After you select a Rewrite action, the Details section displays the details of the selected Rewrite action. New—Select New to open the Create Rewrite Action dialog box and create a rewrite action. Modify—Select Modify to open the Configure Rewrite Action dialog box and modify the selected rewrite action. Flow Type—Specifies whether to test the selected rewrite action with HTTP Request data or HTTP Response data. The default is Request. If you want to test with Response data, select Response. HTTP Request/Response Data*—Provides a space for you to provide the HTTP data that the Rewrite Action Evaluator is used for testing. You can paste the data directly into the window, or click Sample to insert some sample HTTP headers. Show end-of-line—Specifies whether to show UNIX-style end-of-line characters (\\n) at the end of each line of sample HTTP data. Sample—Inserts sample HTTP data into the HTTP Request/Response Data window. You can choose either GET or POST data. Browse—Opens a local browse window so that you can choose a file containing sample HTTP data from a local or network location. Clear—Clears the current sample HTTP data from the HTTP Request/Response Data window.

Click Evaluate. The Rewrite Action Evaluator evaluates the effect of the Rewrite action on the sample data that you chose, and displays the results as modified by the selected Rewrite action in the Results window. Additions and deletions are highlighted as indicated in the legend in the lower left-hand corner of the dialog box.

Continue evaluating Rewrite actions until you have determined that all of your actions have the effect that you wanted.

Click Close to close the Rewrite Expression Evaluator and return to the Rewrite Actions pane.

To delete a rewrite action, select the rewrite action you want to delete, then click Remove and, when prompted, confirm your choice by clicking OK.

Navigate to AppExpert > Rewrite > Policies.

In the details pane, do one of the following:

Click Create or OK. A message appears in the status bar, stating that the Policy has been configured successfully.

Repeat steps 2 through 4 to create or modify as many rewrite actions as you want.

Click Close. To delete a rewrite policy, select the rewrite policy you want to delete, then click Remove and, when prompted, confirm your choice by clicking OK.

Navigate to AppExpert >Rewrite > Policies.

In the details pane, select the rewrite policy you want to globally bind, and then click Policy Manager.

In the Rewrite Policy Manager dialog box, in the Bind Points menu, do one of the following:

Click the bind point to which you want to bind the rewrite policy. The Rewrite Policy Manager dialog box displays all the rewrite policies that are bound to the selected bind point.

Click Insert Policy to insert a new row and display a drop-down list with all available, unbound rewrite policies.

Click the policy you want to bind to the bind point. The policy is inserted into the list of rewrite policies bound to the bind point.

In the Priority column, you can change the priority to any positive integer. For more information about this parameter, see priority in "Parameters for binding a rewrite policy."

If you want to skip over policies and go directly to a specific policy if the current policy is matched, change the value in the Goto Expression column to equal the priority of the next policy to be applied.. For more information about this parameter, see gotoPriorityExpression in "Parameters for binding a rewrite policy."

To modify a policy, click the policy, and then click Modify Policy.

To unbind a policy, click the policy, and then click Unbind Policy.

To modify an action, in the Action column, click the action you want to modify, and then click Modify Action.

To modify an invoke label, in the Invoke column, click the invoke label you want to modify, and then click Modify Invoke Label.

To regenerate the priorities of all the policies that are bound to the bind point you are currently configuring, click Regenerate Priorities. The policies retain their existing priorities relative to the other policies, but the priorities are renumbered in multiples of 10.

Click Apply Changes.

Click Close. A message appears in the status bar, stating that the Policy has been configured successfully.

Navigate to Traffic Management > Load Balancing > Virtual Servers.

In the details pane list of virtual servers, select the virtual server to which you want to bind the rewrite policy, and then click Open.

In the Configure Virtual Server (Load Balancing) dialog box, select the Policies tab. All policies configured on your NetScaler appear on the list.

Select the check box next to the name of the policy you want to bind to this virtual server.

Click OK. A message appears in the status bar, stating that the Policy has been configured successfully.

Navigate to AppExpert > Rewrite > Policy Labels.

In the details pane, do one of the following:

Add or remove policies from the list that is bound to the policy label.

Modify the priority of each policy by editing the number in the Priority column. You can also automatically renumber policies by clicking Regenerate Priorities.

Click Create or OK, and then click Close. To remove a policy label, select it, and then click Remove. To rename a policy label, select it and then click Rename. Edit the name of the policy, and then click OK to save your changes.