Book description
Gain essential knowledge and keep your NetScaler environment in top form
About This Book
- Learn how the main features - Load Balancing, Content Switching, GSLB, SSL offloading, AAA, AppFirewall, and Gateway work under the hood using vividly explained flows and traces
- Explore the NetScaler layout and the various logs, tools and methods available to help you when it's time to debug
- An easy-to-follow guide, which will walk you through troubleshooting common issues in your NetScaler environment
Who This Book Is For
This book is aimed at NetScaler administrators who have a basic understanding of the product but are looking for deeper exposure and guidance in identifying and fixing issues to keep their application environment performing optimally.
What You Will Learn
- Troubleshoot traffic management features such as load balancing, SSL, GSLB and content switching
- Identify issues with caching and compression
- Deal with authentication issues when using LDAP, RADIUS, certificates, Kerberos and SAML
- Diagnose NetScaler high availability and networking issues
- Explore how application firewall protections work and how to avoid false positives
- Learn about NetScaler Gateway integration issues with XenApp, XenDesktop, and XenMobile
- Deal with NetScaler system-level issues
- Discover the NetScaler troubleshooting tools
In Detail
NetScaler is a high performance Application Delivery Controller (ADC). Making the most of it requires knowledge that straddles the application and networking worlds.
As an ADC owner you will also likely be the first person to be solicited when your business applications fail. You will need to be quick in identifying if the problem is with the application, the server, the network, or NetScaler itself.
This book provides you with the vital troubleshooting knowledge needed to act fast when issues happen. It gives you a thorough understanding of the NetScaler layout, how it integrates with the network, and what issues to expect when working with the traffic management, authentication, NetScaler Gateway and application firewall features. We will also look at what information to seek out in the logs, how to use tracing, and explore utilities that exist on NetScaler to help you find the root cause of your issues.
Style and approach
This helpful guide to troubleshooting NetScaler is delivered in a comprehensive and easy-to-follow manner. The topics in the book adopt a step-by-step approach.
Table of contents
-
Troubleshooting NetScaler
- Table of Contents
- Troubleshooting NetScaler
- Credits
- Notice
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. NetScaler Concepts at a Glance
-
2. Traffic Management Features
- Load balancing
- SSL
- Content switching
- Global Server Load Balancing
- Summary
- 3. Integrated Caching and Compression
-
4. AAA for Traffic Management
- Lightweight Directory Access Protocol
- RADIUS protocol
- Client Certificate Based Authentication protocol
- NTLM SSO (401 Based Authentication)
- Form-based Authentication
- Kerberos authentication
- Configuration checklist
- Kerberos authentication with Protocol Transition
- Security Assertion Markup Language
- Verifying a successful exchange using counters
- Summary
-
5. High Availability and Networking
- High Availability
- Ports used for High Availability
- Configurations kept independent in High Availability
- HA pairing requirements
- Setting up and verifying High Availability
- Troubleshooting HA Failovers
- Summary
-
6. Application Firewall
- Deployment considerations
- HTTP changes that occur when using AppFirewall
- Configuring logging
- Application attacks and AppFirewall protections
- Troubleshooting
- Performance issues when enabling AppFirewall
- Summary
-
7. NetScaler Gateway™
- Basic and Smart Access Modes
-
NetScaler Gateway™ VPNs
- Examining VPN session launch using Wireshark
- Troubleshooting NetScaler Gateway™ VPNs
- Collecting debug logs from the client's PC
- Using aaad.debug for authentication issues
- Using ns.log to see authorization and session information
- Using the pol_hits counter to examine policy hits
- Seeing and managing the users who are logged in
- Capturing traces for troubleshooting
- NetScaler Gateway™ Integration with XenApp® and XenDesktop®
- NetScaler Gateway™ integration with XenMobile®
- Troubleshooting XenMobile® and NetScaler integration
- Summary
- 8. System-Level Issues
- 9. Troubleshooting Tools
- Index
Product information
- Title: Troubleshooting NetScaler
- Author(s):
- Release date: April 2016
- Publisher(s): Packt Publishing
- ISBN: 9781782175353
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