Richard Parmiter

Virtualisation blog and Knowledge Base

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Citrix Recevier for iPad shows “Error” but Reciever for Android works

Posted on February 21st, 2012

Came across  this interesting problem today.

Users connecting to a XenApp deployment via a Netscaler 9.3 & CAG Enterprise Edition using the Citrix receiver for iPad and Android. Web Interface for Netscaler was used to provide the XenApp services site.

The Android receiver worked as expected but the iPhone/iPad receiver did not enumerate the apps. On the creation of a new connection, the following errors were shown:

  • iPhone: There are no applications available at this time
  • iPad: Error

After much messing about, it seems that when creating a XenApp service site on the Netscaler, a checkbox is provided stating “enable connection through mobile receiver”. When this is selected a few “rewrite” rules are created to resolve a problem with the iPad/iPhone receiver connections but the rewrite feature is not enabled at the same time on the Netscaler. Simply right clicking the “rewrite” menu in the left panel and selecting to enable the feature is enough to resolve the problem.

After doing this, all mobile receivers can connect as expected.



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Filed under Citrix Access Gateway, Citrix Netscaler | No Comments »

Access Gateway Enterprise – ‘page not found’ due to incorrect certificate type

Posted on February 27th, 2010

I recently came across this problem at a site.

They had an internally generated certificate from their company Root CA. The certificate request was generated and then the cert was applied to the Netscaler 7000 device in the usual way.

When a client device made a connection to the Access Gateway Enterprise site, the browser simply showed a page cannot be displayed message.

Removing the Root CA from the client device was enough to prove that the connection was reaching the Netscaler as it then came up with the certificate warning message, but continuing this also showed page cannot be displayed.

It turns out that an internal documented process for this client was incorrect and the security team had issued an incorrect certificate. Rather than issuing a “webserver” type certificate, they issued an “SSL tunnel terminaltion” certificate. However, because it was still a valid certificate the netscaler showed it as valid – However, it wasn’t valid for the Access Gateway Enterprise connection through and this is why the page cannot be displayed message appeared.

Re-issuing the correct certificate type from the csr request and reapplying to the Netscaler was enough to resolve this.

Note: be careful to double check the cert type being issues by an internal CA.

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Filed under Citrix Access Gateway, Citrix Netscaler | No Comments »

What is included with different XenApp5 license Schemes

Posted on September 23rd, 2008

XenApp 5 Edition Components

The components that are incorporated into the XenApp 5 release based on license type, as shown below:

Read the rest of this entry »

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How many Processor cores are supported by Windows 2003 Standard Edition

Posted on September 16th, 2008

Windows 2003 Standard Edition vs Enterprise Edition

In the past there were some limitations emposed on Windows 2003 Standard Edition which in some situations would mean that you would need to spend a bit more money and buy the Enterprise version instead. One of these limitations was memory and specifically related to the PAE environment (as detailed here).

However, I was asked the question about processors. Will Windows 2003 Standard Edition support 2 Quad core processors (8 cores in total)?

After much digging I have found the following resources to say that Standard Edition will support this:


Yes, Windows 2003 Standard Edition will support upto 4 physical processors, whether the processors in the system are single-core, hyperthreaded, or multicore.

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