Archive for 'Citrix'

Solved: VDA client unattended install failure.

Solution

When you’re solving the same problem after a couple of months it’s probably a good idea to write a post about it so the solution is close at hand. When you perform an unattended install of VDA client from the 7.x XenApp/XenDesktop media the installation may fail, after this first failure all other attempts will fail […]

Solved: Netscaler VPX (on VMWare) Problem.

Solution

During my latest project I ran into a problem where Netscaler VPX stops responding to any sort of request. Logon to Netscalers management interface: Netscaler immediately stops responding. Connect to Netscalers Access Gateway VPN server: Netscaler immediately stops responding. Connect to Netscalers Access Gateway Logon Interface: Netscaler immediately stops responding. The state of the netscaler is as follows: Netscaler is no longer reachable via […]

HOW TO: Netscaler 10.5 – Change Password / Secure LDAP configuration

Solution

During my current project I had to build a Netscaler cluster for Access Gateway functionality. After initially configuring the Access Gateway vServer I noticed that user account that are marked for “Change Password on next Logon” could not authenticate not via Access Gateway Logon Page nor Via Dell Wyse ThinClient that are configured for StoreFront […]

Windows 2012 R2: Black logonscreen after App-V 5 (SP2) Client installation

Solution

While I was building a proof of concept for my customer I ran into some issues that where seemingly unrelated. I was building a brand new Windows 2012 R2 / XenApp 7.5 environment including RES Automation Manager, RES Workspace Manager and App-V 5 (SP2). After installing and testing the core XenApp infrastructure, I started to […]

Netscaler vs CVE-2014-0160 (Heartbleed) OpenSSL vulnerability

Yesterday a lot of attention was created about the latest OpenSSL vulnerability (CVE-2014-0160). This vulnerability exposes a lot of SSL implementations to a great risk because OpenSSL is a very popular SSL implementation and used in a great range of Unix/Linux based application and appliances. Being very busy with Citrix Netscaler lately I immediately recognized the great potential […]

SCRIPT: Check ICA Listener response

Powershell

Last week I was troubleshooting at a customer which was experiencing some “random” periods in which end users could not login at all. When looking at the Load Evaluator I noticed the least loaded server in those periods were the same. When trying to logon to the server through ICA, the server sits forever at […]

Send Message to User Limitations

Solution

Today I received a question from a customer who wanted to send “Large” message to all XenApp users in the farm. They asked me what the maximum number of characters was that you can send to a user. I honestly did not have a clue and answered to the client that I was not aware […]

SOLVED: Adobe Reader X hangs after opening a PDF file

Solution

Some time ago i noticed that when I opened a PDF file, Adobe Reader X stopped responding for sometime. I noticed it happens on Windows 2003, Windows 7 and Windows 2008. after some investigation I found a solution in disabling Adobe’s “new” Protected Mode feature. Open Adobe Reader X navigate to Edit->Preferences->General clear the check-mark at “Enable […]

Solved: XenApp 5 HRP 7 results in 0x000000CF BSOD

Solution

While installing a new Citrix XenApp  farm for a customer I upgraded the servers to Hotfix Rollup Pack 7 (HRP7, PSE450W2K3R07). The XenApp 5 farm is build as virtual servers on a  VMWare vSphere 4.1 cluster. Installing Hotfix Rollup Pack 7 via RDP console session (mstsc /console) succeeded  with no error and the farm booted nicely after […]

Solved: 0x0000007B BSOD after unattended install of PVS Target Device

Solution

While building a deployment sequence for a XenApp 6 farm using SCCM, I ran into the problem that the unattended install of the PVS Target Device (5.6 SP1)  succeeds but after after creating a VHD file using “XenConvert P2VHD” and booting the newly created vDisk the Provisioned Server crashes with a BSOD 0x0000007b (inaccessible boot device). […]