TAAS (Techsupport As A Service) or Citrix Insight Services, as it is now called, is a Citrix web-based analysis utility geared towards providing customers more visibility into their environment. All it takes is signing up for a MyCitrix account, something you potentially already have if you are the person managing your NetScaler.

You can then go on to https://cis.citrix.com/ and upload a showtechsupport file taken from your NetScaler by clicking on the Upload Data button. The strength of this tool lies in automation based on years of NetScaler knowledge.

Statistics that you would otherwise have to use newnslogs commands for can be readily obtained using the site. The benefit is that you can plot CPU, Memory, SSL, TCP, and HTTP statistics and identify any trends coinciding with the time of the issue.

The tool will also highlight any deviation from NetScaler's best practices. The following is a sample best practice that recommends dropping invalid HTTP requests.

Invalid requests, that is, requests that are not HTTP RFC-compliant, can form the basis for certain HTTP-based attacks and should be dropped.