Do you have an application that does not run smoothly in Windows 7 or Vista, but it can run on XP or even earlier versions of Windows? If yes, then you only need to install it with an old Windows CD On a virtual machine, and then install your old application is OK. Virtualization is not just for geeks or users running high-performance servers. It can provide useful help for anyone. If you have not wet your shoes by the virtual seaside, you may be left behind.
In a strict sense, virtualization refers to running two or more operating systems on a physical PC. These operating systems either run in parallel and are managed by a separate software called hypervisor, or one operating system runs in the program window of another operating system. The former is generally limited to servers, while the latter can be implemented on desktop computers.
Both VMware and Oracle are equipped with the latter virtualization function on their workstations and server products. There are even completely free virtualization software such as Oracle's VirtualBox and VMware's Player, which can be used for desktop PCs, while VMware's vSphere is used for server-side virtualization.
However, there is a completely different technology, the so-called virtual desktop infrastructure (VDI). This is where client computers register with a server and then access their own desktop environment, and all these environments are hosted by the server. Usually the remote desktop is presented in the program window of the client computer, but some mobile devices, such as tablet computers, have also begun to adopt desktop virtualization.
For example, Citrix's XenDesktop allows hundreds of client computers to register to a (generally very powerful) server through a remote connection. Each user has their own account, so they also have their own workspace, personal applications and so on.
Here are ten things that can make you completely trust virtualization before you try virtualization.
1. Run old applications
Do you have an application that does not run smoothly in Windows 7 or Vista, but it can run on XP or even earlier versions of Windows? If yes, then you only need to install it with an old Windows CD On a virtual machine, and then install your old application is OK.
VMware Player is equipped with Unity mode, allowing applications to run on virtual machines as if they were running on a local host. Each application can have its own task bar and its own program window, creating a seamless experience. But to achieve all this, you must install VMwareTools on the virtual operating system.
2. Access virus-infected data
If your anti-virus software marks a file as being infected, but it contains important data, what should you do to browse? Most virtualization software will have a snapshot function, which means you can create a virtual A "rescue state" of the OS and its entire hard drive. It's kind of like traveling back in time.
You can create a snapshot on the virtual machine, open the infected file on the virtual machine, and access the data. If the virus causes data confusion, simply click to restore to the VM snapshot.
What a neat virtual computer.
3. Browse Safely
Why can't you install Windows on VMware Player, then install Firefox, and then run it in Unity mode?
Because Firefox basically runs in a so-called sandbox, which means it can be hacked as long as it is online, it is not absolutely risk-free for the actual operating system. However, you can create a snapshot after everything is configured on the virtual machine, and if there is a problem, just return to the snapshot status.
4. Test software, upgrade, or new configuration
The above virus testing techniques are not limited to malware. You can also use virtual machines to test, upgrade, and even configure new software before actually releasing the software on the main operating system.
Some server administrators use the virtualization technology department to create a copy of the existing installation state of the operating system, plus data backup, and then run the virtualization software to test what kind of dangers various configuration changes or upgrades may cause. If you manage your workstation computer and want to ensure that a Windows upgrade is smooth, you can first test it on a virtual machine.
5. Run Linux on Windows (or vice versa)
Want to try Linux without partitioning your computer's hard drive? You can install any operating system on the virtual machine and run it.
Linux and Mac users have been running Windows on their OS for years using virtualization technology in this way.
For example, if you run Linux mail or Web services, occasionally using the Linux desktop version can also make it easier to communicate with the server. For example, there is no need to install PuTTY on Windows to communicate via a secure shell (SSH), because Linux itself has a similar built-in.
6. Back up the entire operating system
Because the virtual OS is completely contained in a series of files, backing it up can be as simple as backing up any file. The same is true for the installation of virtual servers. If you run a virtual machine on a server or host your mail server, once it encounters a hacker attack and goes down, it can be as simple as restoring the work order like restoring a backup file.
But keep in mind that creating a backup of a VM may create some legal issues. Although the backup is very good, if you create a backup of the VM installation for your friends to use, it may violate the copyright law (this assumes that you are using Microsoft software, if you are using Linux software, most cases There will be no problems).
7. Create a personal cloud computer
If you are not in the office, there is no need to bring your laptop. Just keep it up and running (but power save mode must be turned off!), Grab your phone or tablet, and you can access your laptop via Remote Desktop Protocol (RDP). This will allow you to access the same desktop environment you are familiar with, although it may not have the same beautiful graphical interface.
If you are running Windows 7 Professional, Final, or Enterprise, you can right-click My Computer on the Start menu, select Properties, and then click Remote Setup to configure the computer to accept RDP connection mode.
The same steps are the same on Windows Vista, except that Professional, Business or Final versions are required. Other Windows versions do not support RDP server if there is no skill.
However, in order to be able to connect remotely, you need to remember the public IP address of your router and configure the router port to forward the incoming RDP connection to the laptop PC. How to do this differs from computer to computer, but usually you only need to choose a predetermined rule.
Then download an RDP client to your mobile device and connect. For Apple iPad and iPhone, you can try iTap, but there are RDP clients for most platforms.
8. Web development can run without an interface
Most virtualization software allows virtual machines to run without an interface, that is, without displaying a desktop (or other user interface). Essentially, the virtual PC can run in the background. For those who want to create a website, this interfaceless operation gives them the possibility to run a very private web server for testing purposes.
9. Make a backup for the server in an emergency
Amazon's Elastic Cloud (EC2) service allows you to copy any existing virtual Windows 2008 server installation (eventually all server installations are supported, including Linux).
Regularly backing up existing server installations in this way can provide essential redundant backups and will be saved once a catastrophic event occurs on your server. For example, if your physical server has been buried by dust after the hurricane hit, all you need to do at this time is to start the EC2 mirror, reconfigure it on a different IP address, and everything will continue to operate as usual.
10. Reuse old hardware
By installing CitrixXenDesktop on a Windows server, you can convert an old, low-performance computer into a thin client, thereby eliminating the budgetary cost of workstation upgrades.
These clients can access their personal desktop space on the server, which is almost the same as the operating system and applications running locally. XenDesktop contains some very smart technology to avoid the common thin client poison pills.
XenDesktop also allows your employees to access their desk at home, configure the server to be publicly accessible, and then they have permission to install client software. You can even use your phone to connect to your desktop environment.
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