Summary
To customize the HTTP header, you might want to rewrite the same. For example, after rewriting the request header, depending on the policy settings, you might also want to rewrite the response header.
Background
Until the NetScaler software release 7.0, the bidirectional rewrite feature is not available.
NetScaler Bidirectional Rewrite Feature
Starting with NetScaler software release 8.0, the bidirectional rewrite feature is supported. To use this feature, it is recommended that you upgrade the NetScaler software to the NetScaler software release 8.0 or later.
