You can configure the NetScaler appliance to direct requests to a backup virtual server in the event that the primary load balancing virtual server is DOWN or unavailable. The backup virtual server is a proxy and is transparent to the client. The appliance can also send a notification message to the client regarding the site outage.
You can configure a backup load balancing virtual server when you create it, or you can change the optional parameters of an existing virtual server.
By default, compression is disabled on the NetScaler ADC. You must enable the feature before configuring it. If the feature is enabled, the ADC compresses server requests specified by compression policies.
To configure HTTP compression, do the following:
Configure compression actions Configure compression policies Bind the compression policies to global bind points or to virtual servers Optionally, configure global compression parameters Enabling HTTP Compression Compression can be enabled for HTTP and SSL services only.
In the event that a load balancing virtual server of type HTTP or type HTTPS goes DOWN or is disabled, you can redirect requests to an alternate URL by using an HTTP 302 redirect. The alternate URL can provide information about the status of the server.
You can redirect to a page on the local server or a remote server. You can redirect to a relative URL or an absolute URL.
There are three important components of setting up a load balancing configuration, namely monitors, methods and an optional parameter called persistence. When setting up the load balancing, different combinations of these three components can give different results.
When you set up load balancing, a default monitor is always attached to the configuration. In simple terms, a monitor is used to keep a check on the status of the services. On the other hand, configuring the type of method tells NetScaler how the incoming requests would be routed to the load balanced servers.
A NetScaler appliance resides between the clients and the servers, so that client requests and server responses pass through it. In a typical installation, virtual servers configured on the appliance provide connection points that clients use to access the applications behind the appliance. In this case, the appliance owns public IP addresses that are associated with its virtual servers, while the real servers are isolated in a private network. It is also possible to operate the appliance in a transparent mode as an L2 bridge or L3 router, or even to combine aspects of these and other modes.
First of all, what is ssl???
SSL (Secure Sockets Layer) is a standard security technology for establishing an encrypted link between a server and a client—typically a web server (website) and a browser; or a mail server and a mail client (e.g., Outlook).
SSL allows sensitive information such as credit card numbers, social security numbers, and login credentials to be transmitted securely. Normally, data sent between browsers and web servers is sent in plain text—leaving you vulnerable to eavesdropping.
New features included in Citrix Xenapp 6.5 are:
Server Platform Support Citrix AppCenter Session Pre-launch, Session Linger, and Fast Reconnect Controller and Session-Host feature Integration with Desktop Director Citrix HDX Enhancements Migration Center with Graphical User Interface Improved Performance for Pooled Desktops Printing Optimization Receiver Storefront
All the above features are explained below.
About Citrix XenApp 6.5 for Windows Server 2008 R2
This release includes several new features and enhancements to Citrix XenApp.
CLIENTCACHE
This utility is used to change the client cache location or the maximum cache size. By default, when applications are streamed the target is extracted and cached in the \Program Files\Citrix\RadeCache directory. The default size of the client cache is 1024 megabytes (MB), which is equal to one gigabyte (GB). This tool is executed on the computer with the Streaming Client installed; it is located in the \Program Files\Citrix\Streaming Client directory.
Problem:
when users open the netscaler link, it doesnt open at all, or it takes very long time to open. If opened, it wont show any applications. It says webpage not available kind of errors.
Solution:
Checked the vServers and found that one of the vserver is down. I have manaully opened the web server link and it is opening as expected. So, came to a conclusion that, the vServer that is pointing to this web server is causing the problem.
Print Migrator:
Print Migrator provides complete backup, restore and migration operations for windows NT-based operating systems from Windows NT 4 to Windows 2003.
Stress Printer Tool:
This tool can be used to simulate multiple sessions autocreating printers using same printer driver.
Citrix Printing tool:
Citrix Printing tool 3.1 helps configuring and troubleshooting the citrix printing subsystem on xenapp, xenapp online plugin and xendesktop.
Print Detective:
Print Detective is an information gathering utility that can be used for troubleshooting problems related to print drivers.
