|Exam Name||:||Citrix Presentation Server 4.5: Administration|
|Questions and Answers||:||126 Q & A|
|Updated On||:||February 22, 2019|
|PDF Download Mirror||:||Pass4sure 1Y0-259 Dump|
|Get Full Version||:||Pass4sure 1Y0-259 Full Version|
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within the land of Citrix, what was as soon as called "Presentation Server" is now "XenApp." Of direction, there's more to...
this story than a name alternate -- Presentation Server 4.0 became replaced by XenApp 4.5, which is now being replaced through XenApp 5.0 characteristic Pack 2. The identify alternate simplest provides to the confusion. Citrix is making an attempt to push bewilderment apart and tout the merits provided by using XenApp 5.0 characteristic Pack 2, aiming to faucet in to a potentially massive upgrade market. however many techniques administrators had been sluggish to improve, claiming that the upgrade technique is fraught with complexities, poor support and dangerous documentation.
With that in mind, why would you want to upgrade from XenApp 4.5 to XenApp 5.0? in accordance with Citrix, there are a few factors including:
The improve argument turns into greater compelling when relocating from Presentation Server four.0 to XenApp 5.0. not only do you get the above improvements, however which you can additionally garner right here enhancements:
Most systems administrators running prior types of XenApp or Presentation Server will find whatever thing of value within the stream to XenApp 5, and they're going to wish to circulation to Citrix's latest application virtualization product.
adding gasoline to the fireplace is the advent of windows 7, which might straight away develop into the de facto normal laptop working equipment for many corporations which are changing PCs. That should pressure the need for XenApp 5 on two fronts: easing the deployment of functions to new PCs and supporting the brand new elements of windows 7.
The advancements in XenApp 5 combined with the requirements of windows 7 will shift the "Is upgrading price it?" query over to "What do I deserve to do to upgrade?" because of this, admins are going to need to confront the complex and difficult upgrade process.
but through following some average-experience rules, blended with a little abilities about Citrix items, most systems directors should still be in a position to address the improve and prevent the regular "gotchas."
The planFirst off, engineer an improve plan. That plan will include a listing of the server hardware, the functions which are virtualized, the implementation and design of any present XenApp/Presentation Server configuration, the laptop working methods in use, and the server operating systems in location. That suggestions will support administrators to select an improve strategy. Most upgraders will select considered one of three paths: an in-area migration, an upgrade or a clean installation.
those looking to installation new servers or appreciably improve hardware as part of their XenApp deployment will need to pursue a clear installation, in reality ranging from scratch. youngsters a clean install nonetheless requires extensive planning, Citrix offers extensive documentation and support. enhancements, in spite of this, involve installation a newer version of a characteristic or unencumber merchandise over an present version and be essentially the most not easy course to follow. Even Citrix's documentation states that "the place possible, migrations are preferable."
whereas clear installs may be probably the most straightforward components of going to XenApp 5.0 function Pack 2, a migration may well be the most desirable technique to move from Presentation Server four.5. Migrations mix one of the crucial simplicity of a clean install with the advantages of an improve. however an in-region migration still poses several chores and complexity.
So why go throughout the trouble?
The reply is tremendously fundamental: An in-region migration preserves the present digital applications and simplifies licensing and application deployment to computing device PCs in the business. methods administrators who decide to behavior in-area migrations will need to put together for a number of hours of downtime for their virtualized applications.
Naturally, one of the first steps earlier than attempting a migration is to absolutely lower back up the present Presentation Server/XenApp techniques and then investigate these backups to recuperate instantly if a migration fails. a further crucial project is to evaluation the new terminology used with XenApp as a result of most of the older phrases associated with Presentation Server had been renamed. not figuring out the brand new terminology and the way it pertains to latest facets can result in confusion all over a migration.
Citrix offers a number of instance configurations and a preconfigured XenApp contrast ambiance that upgraders can access to verify-pressure the product's new aspects and capabilities. stronger yet, admins may still trust doing a number of "look at various" migrations in a lab ambiance to prevent unforeseen considerations.
The migration system is accomplished in a few steps, which Citrix defines as:
every of those steps requires administrative intervention, and not all are driven by means of wizard-category installers. during the past, many americans had been important of Citrix for not publishing in-depth improve documentation, however with XenApp 5, that has modified. Citrix offers several pieces of assist documentation, which go into further detail for specific migration cases. although, that documentation can be a little problematic to locate on the company's web site. here are some direct hyperlinks to those bits of suggestions:
With some careful planning, experimentation and due diligence, upgrading to Citrix's latest and premiere virtualization tools should no longer present any foremost difficulties -- as long as programs administrators are prepared.
concerning the author:Frank Ohlhorst is an IT journalist who has additionally served as a community administrator and functions programmer before forming his personal laptop consulting firm.
It’s reliable, Citrix has posted Presentation Server 4.5 for down load on mycitrix.com. This protected the x86 and 64bit version of Presentation Server along with the components CD that includes internet Interface 4.5 and plenty more…
To down load Citrix Presentation Server four.5 please login to Citrix’s mycitrix.com after which seek advice from here hyperlinks to down load Citrix Presentation Server four.5!
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EUC with HCI: Why It matters
Citrix systems , typical essentially for connecting remote people to their company networks, is now providing a way to free them from the community.
The enterprise is releasing Presentation Server 4.5, which contains a brand new streaming feature that lets clients access computing device purposes as an on-demand provider, a great deal in the equal approach as song or video is streamed over the web.
This technique is absolutely clear to end clients, who will access desktop purposes as if they were working in the community.
The streamed functions will continue operating even when clients disconnect from the network, simply as if they had been put in by means of ordinary ability. When conclusion users re-join, any new updates, patches or rollbacks are immediately, and transparently, streamed to each consumer, making certain they are always working with the newest version.
Nabeel Youakim, vp and product line government for Citrix Presentation Server, defined that IT managers can offer a much wider range of computer functions to users without being concerned about version conflicts and migration headaches as a result of streamed functions operate in a protected isolation environment on every person's desktop.
"This makes the Presentation Server a an awful lot greater strategic product for application birth," he advised internetnews.com.
the new release of the business's flagship product also contains superior application performance monitoring, the use of know-how included from Reflectent, which Citrix acquired closing may.
Citrix has also leveraged assets from its November 2004 acquisition of cozy gateway dealer Net6 to enrich how Presentation Server handles software entry.
as an example, now users may also be given read access to certain purposes however will also be avoided from printing or saving, and access can also be tailor-made to the specific gadget being used.
The enterprise has also stronger its capacity to serve picture shows, enabling users to virtualize even images-intensive applications without compromising the end-use adventure.
"earlier than, you may do it, nevertheless it changed into slow," stated Youakim.
Gartner analyst Mark Margevicius referred to that the brand new streaming means represents a significant alternate for Citrix.
"application streaming means now they could lengthen their presence into the customer, which fits into a whole diverse ballgame," he advised internetnews.com.
That software administration "ballgame" contains players like Microsoft , HP and Symantec, which lately acquired Altiris.
Margevicius warned, besides the fact that children, that now that Citrix has entered the software management arena, they might be judged against that an awful lot stiffer competition. "The functions required are distinct from what they have been doing before," he referred to.
Margevicius stated that, very nearly as essential because the feature enhancements, Citrix is also moving to a 64-bit platform, with a view to allow valued clientele to consolidate their server usage. "The advantages of relocating to this are pretty gigantic," he referred to.
Presentation Server four.5 may be obtainable in March 2007, and is available in a couple of function sets priced from $350 to $600 per concurrent user.
Article courtesy of internetnews.com
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It’s Official, Citrix has posted Presentation Server 4.5 for download on mycitrix.com. This included the x86 and 64bit version of Presentation Server along with the components CD that includes Web Interface 4.5 and much more…
To Download Citrix Presentation Server 4.5 please login to Citrix’s mycitrix.com and then refer to the following links to download Citrix Presentation Server 4.5!
Presentation Server 4.5 for Windows Server 2003, Entire CD Image – https://www.citrix.com/English/SS/downloads/details.asp?dID=36239&downloadID=164647&pID=186
Presentation Server 4.5 for Windows Server 2003 x64, Entire CD Image – https://www.citrix.com/English/SS/downloads/details.asp?dID=36239&downloadID=164648&pID=186
Presentation Server 4.5 for Windows, Components, Entire CD Image – https://www.citrix.com/English/SS/downloads/details.asp?dID=36239&downloadID=164646&pID=186#topShare this:
I have a confession to make: When it comes to Citrix’s XenServer/Presentation Server/MetaFrame/WinFrame product line, I’ve always been biased. I simply love it. I remember giving people JDE software in a midsize manufacturing company (that has since been swallowed by a large imperial juggernaut.) When I was a server admin there, I had only to deploy the Citrix client and some configs and the desktop admins loved me for it. At my prior company, I remember going desktop to desktop putting nasty, frequently-updated-due-to-crappy-design applications on hundreds of clients’ desktops. Thanks to Citrix, I was the office hero because staff could work at home when they needed to.
Then I discovered VMware and fell in love all over again. Now, I could deploy rich desktops without granting server access to the desktop. I could consolidate hundreds of servers, roll out emergency desktops in half the time, deploy servers from cloned templates with ease and backup entire systems without any agents. The only problem was that I never had Citrix run well on ESX 2 and 2.5, even though I was being told that Citrix and VMware go together like PB and J. If I were to anthropomorphize the whole thing (and I will) I’d say the two were jealous of each other and vied for my love and affection.
Putting Citrix on VMwareI had been advising people against using Citrix and VMware together; but should one insist, I have always recommended that they do some serious testing first. Then one day I broke down: After having read the VMware Performance Study and a great VMTN post, I figured it was about time I did my own testing. And like the aforementioned references, I got great results.
I officially rolled out Citrix Presentation Server on VI3.5 and the performance has been stellar. I don’t have a lot of users on the Presentation Servers, but I run them alongside other production servers hosting the server side of some medical applications (billing applications, etc.), effectively putting the client and server on the same hosts. I’ve done this for my own office and for a couple of clients now. You could say that I am officially backpedaling now and embracing Citrix on VMware.
Here are my suggestions if you decide to try this for yourself:
Disaster recovery services (DRS) – Use anti-affinity rules to keep your Citrix servers from bunching up together if you allow automatic allocations. While it’s unlikely that a large farm will wind up with all of its Citrix eggs in a few baskets and then lose all of those baskets, it’s a possibility that should be planned for.
Storage – Use the fastest storage you can use. Citrix directly affects the user experience and shouldn’t be skimped on. Slow Citrix equals unhappy masses, which equals poor perception of IT, which equals job troubles for you. If you have multiple storage area networks (SANs) to connect to, or even multiple logical unit numbers (LUNs) on the same SAN in different RAID groups, separate out the virtual machine disk files across your storage infrastructure to minimize the amount of disk I/O that Citrix boxes can generate (this is a good thing to do in any Citrix environment, not just a virtualized one.) Granted, I’m talking out of the side of my head here, since I run one of my Citrix farms on an iSCSI SAN, and it performs very well, but scalability may be an issue I don’t have to address to the same degree as the largest enterprises.
Benefits of a Citrix on VMware systemThe net result I’m seeing is an average of 18-20 users on each Citrix box before performance starts to tank. I was getting the same performance on my physical boxes. I don’t need to schedule a reboot as frequently due to memory leaks (though we also redid the base Win2K3 install for R2, so I can’t definitely point to virtualization as benefactor here), and when I do reboot, the reboot time is, like any virtual system, much faster than a hardware reboot.
Since I now can put my Citrix disk on the SAN, I can do block-level backup of data stored on Citrix servers (which, as any Citrix admin can tell you, happens no matter what you do since users always find a way.) Having templates makes it easy to roll out new Citrix boxes as well, especially since PS4.5 makes adding a new Citrix box to your farm a breeze. Then there’s my favorite: snapshots. I’d take a lower user/server ration if I had to just to have this feature. Luckily, I don’t have to. I can take snapshots just before and after every new application is installed for publishing; before and after every app is patched; before and after updating Windows; and before and after updating Citrix. Being able to roll back with such ease is what makes me truly, deeply happy with Citrix on VMware.
So, same user/server ratio, shorter downtime periods, quicker deployment and snapshots: I call this a win-win.
VIRTUALIZATIONNew desktop virtualization solutions can cut costs and bolster security
Maintaining employees' computers is one of the information technology department’s most thankless responsibilities. The desktop and laptop PCs that are fixtures of today’s workplace eat up IT staff time and a good slice of the department’s capital budget. But usually, the IT department hears from users only when the devices are broken or tied to a security breach.
Desktop virtualization technologies probably won't make users any more appreciative, but by centralizing desktop administration tasks in the data center they can lighten the load on the IT department while enhancing security. Estimates on the potential cost savings vary widely because the upfront costs for buying virtualization systems or upgrading existing infrastructure such as networks to support it shift depending on the would-be implementer’s situation. But analysts do agree that overall costs will come down in the long run, sometimes significantly.
Part of that challenge is that agency leaders have to sort through several virtualization options, and choosing the best one — or a combination — for each unique situation can be difficult.
Desktop virtualization aims to simplify desktop computing in much the same way as its better-known sibling, server virtualization, lets agencies cut fat in the data center by running multiple virtual machines on a single physical one. Fewer servers means less hardware and lower support costs.
Desktop virtualization doesn’t eliminate computers from users’ desks, but it does allow workers to get by with less expensive, stripped-down models or even older, re-purposed units. The technology transfers a lot of PCs' brains and data storage to central servers in the data center, where IT staff members can manage them more efficiently, including keeping them up-to-date with security patches.
Government has been broadly adopting server virtualization, which is now a fairly settled and mature technology. The desktop variety, in contrast, presents a more varied landscape. Indeed, buyers face multiple technical approaches to desktop virtualization. Those flavors, in turn, feature different levels of customer adoption and offer different potential benefits.
The task for customers is to determine which desktop virtualization approach — or combination of methods — best suits their needs.
“A lot of people are wrestling with that these days,” said Joe Brown, president of Accelera Solutions, an IT solutions provider that specializes in virtualization and works in the government market.
Here’s a rundown on the main forms of desktop virtualization.
Option A: Presentation virtualization/application virtualization
How it works
Presentation virtualization lets users share an application hosted on a central terminal server. Instead of having expensive, full-functioning PCs on their desks, users have thin clients, which are stripped-down computers with no hard drives. The servers handle the data storage and the bulk of the application processing action, save for the user interface, which runs locally on the user’s desktop machine.
Microsoft’s Windows Terminal Services and Citrix Systems' Presentation Server — now rebranded as XenApp — are examples of the approach.
Such presentation solutions are simple to deploy as long as adequate network bandwidth is available, said Jim Smid, data center practice manager at Apptis Technology Solutions, an integrator with many government customers.
Brown said Citrix’s technology, in particular, has proven an effective solution for delivering a standard application to a large group of users who have regular network access. He said this approach can cover the desktop application needs of 30 to 40 percent of a typical organization’s users.
In the past, presentation virtualization wasn't an option for users who don’t have regular network access. But vendors have added a new capability called application streaming or application virtualization that address this mobile population. Citrix’s XenApp, for example, can deliver a mobile version of applications to workers’ desktops while they are connected. They can then run that application later even when there is no network connection.
VMware’s ThinApp and Microsoft’s App-V also offer application streaming.
Where it fits
Presentation virtualization and application virtualization play different roles in an organization.
Presentation virtualization sees the greatest use among task workers who use a limited number of standard applications, such as in call centers, said Tom Simmons, area vice president at Citrix's Government Systems division. Another niche is presenting existing applications that are difficult to manage on the client side.
It is also a good choice for users who need standard applications that access large, centrally stored datasets, said Rhys Ziemer, a technology expert at Microsoft.
Meanwhile, application virtualization and streaming provide centrally controlled and distributed apps to users, whether they are in-office workers with constant network access or mobile workers with only occasional network access.
Industry executives identify presentation virtualization and application virtualization as the most common forms of the technology. They said the ability to centrally manage applications and meet security standards, such as the Federal Desktop Core Configuration, rank among the attractions in government.
FDCC, a mandate of the Office of Management and Budget, calls for agencies to introduce standard configurations of Windows XP and Vista PCs in an effort to boost security.
Option B: Virtual desktop infrastructure (VDI)
How it works
VDI represents a newer development in desktop virtualization, and it is just now emerging among government agencies. The technology also falls under the hosted virtual desktop label. VDI Products include Citrix's XenDesktop, Parallels’ VDI and VMware’s View.
Microsoft, meanwhile, provides a basic, manageable VDI infrastructure with its upcoming Windows Server 2008 R2, Rhys said. General availability is slated for later this year.
The hosted virtual desktop approach is an effort to centralize user computing. Although a traditional PC houses the operating system, applications and data on a local hard drive, a virtual desktop places those elements in the data center. Each user’s desktop is maintained as a virtual machine running on a central server. A server could potentially host thousands of such virtual desktops for an agency's user population.
A connection broker, which supports one or more remote viewing protocols, links the user to his or her virtual desktop. Virtualization software vendors offer connection brokers, and third-party brokers are available from companies such as Leostream and Quest Software.
An organization might choose to use a conventional PC — a thick client — to display the virtual desktop or opt for a smaller device, such as a thin client or even an older model PC.
Where it fits
VDI offers greater opportunities for customizing the user experience compared with shared presentations of server-based applications.
Each virtual desktop residing in the back-end server infrastructure exists independently of all others. This isolation gives all users “their own personalized desktop,” said Raj Mallempati, group product manager for desktop solutions at VMware.
Accordingly, Brown said he recommends hosted virtual desktops for users who need personalization capabilities that a shared platform wouldn’t provide. He added that virtual desktops also avoid some application compatibility issues found in shared-computer environments.
VDI might also prove to be a fit for organizations that seek to maintain traditional desktop capabilities such as bi-directional audio/video and streaming video that are difficult or impossible in a shared presentation form of virtualization.
“As much as possible, we completely replicate the physical environment by doing things like bi-directional audio and video,” said Paul Garver, vice president of Quest Software's public sector division.
For the most part, VDI has surfaced as proof-of-concept deployments in government. But larger deployments have begun to emerge.
At the U.S. Patent and Trademark Office, 2,110 production employees — including trademark attorneys and Board of Patent Appeals judges — use a virtual machine for desktop computing, an agency spokeswoman said. USPTO’s desktop virtualization is built on VMware’s server and desktop products.
Elsewhere, Pike County Schools in eastern Kentucky has adopted a virtual desktop approach using IBM’s desktop cloud service. IBM hosts the VMware-based virtualized infrastructure, which spans 1,500 client machines.
Students access virtual desktops from an array of computer devices, including many older desktop models. “We can bring them back to life — kind of like Frankenstein,” said Marrita Horne, Pike County Schools' technology director.
District officials hope to add 2,000 more computers to the virtual service, including older machines that otherwise would have been scrapped. Horne also noted improved security as another advantage for the virtual desktop environment.
Option C: Virtual desktop/client-side hypervisor
How it works
In this wrinkle, the virtualization software operates only on a user's PC. This technology lets users operate virtual machines on their own devices as opposed to relying on a server to do the virtualization chores.
VMware set the market in motion in 1999, with the debut of VMware Workstation — the company’s first product. Workstation allows a PC to run multiple operating systems. Products in the Workstation mold are called Type 2 hypervisors because they run within an operating system. Type 1 hypervisors, typical of server virtualization, run directly on hardware.
However, some vendors are pushing Type 1 hypervisors to the desktop. Citrix’s Project Independence, in which it collaborates with Intel, marks one effort to develop a client-side hypervisor.
Where it fits
In recent years, products that let Apple Mac users run Windows or Linux have been a popular use of desktop virtualization. Parallels’ Desktop for Mac and VMware’s Fusion fall into that category.
The government has provided a steady source of users who want the ability to run Mac and Windows applications side by side. Bill Portin, vice president of sales and operations at Parallels, listed NASA, the National Institutes of Health and the Energy Department's national laboratories among the company's customers.
Aileen Black, vice president of VMware’s public-sector division, said Fusion is taking off in the Army, which recently purchased 7,500 Macs. The Defense Department and intelligence agencies have also requested it, she said.
John Moore is a freelance writer based in Syracuse, N.Y.
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