I know that we can divide a server or a computer into many virtual machines using a hypervisor - but the question is how a virtual machine is different from a virtual server, or they are same thing?
Virtual Machine :It is something which acts like a real computer with an OS.
Physical Server:It is a designated or used by single user and it is not shared by by multiple users.Each physical server has its own OS to run programs and application,memory hard drive,processors and network connection
But if we install a hypervisor on physical server we can create and manage virtual machine and then all these virtual machines will have their own resources, OS and server applications.
Then these virtual machines only can be used for different purposes and if they are used as a server then they are called virtual server.
Related
I am testing MongoDB in terms of Network Failure.
How can I shut-off NIC in a virtual machine.
I am using terminal: Teraterm.
I have a virtual machine running on CentOS8.
Depends on virtual machine software. In VirtualBox, there are icons in bottom right of the UI that allow attaching/detaching the network adapter.
Dummy question here, I'm pretty new to some stuff like setting up server configuration, etc.
So my question is, can i set up a LAMP virtual machine and use it as a real server?
I mean can the web pages in the www directory be accessed from another computer like if it was a regular server??
Simple Answer: Yes
The VM has to have its network interface routed to the host machine to be accessible from host's network.
How this is done depends on the OS and VM software.
I try to install check point SecurePlatform on my Hyper-V virtual machine.
I have two virtual swithes, External and Internal, and two Ethernet adapters in my VM settings. But I don't see any Ethernet adapters in Device scan list during SecurePlatform installation process.
I have not any idea, why it happens. I think that SecurePlatform doesn't support virtualization, but I can't find any information about it compability with Hyper-V hypervisor
I found solution: I need to create two legacy network adapters for both virtual switches. Now I can ping SecurePlatform machine from my virtual internal network.
Also you need https connection to interact with webui from client machine.
I have Windows Server 2008 and Windows 7 on virtual machines (HyperV). Win7 has 2 internal interfaces (Local Area Connection 4 and 5), the same situation is on Server 2008.
All interfaces are using one, the same internal virtual switch.
I thought that they are all in the same subnet now and should ping each other, but the only machines that can communicate are interface 5 (Win7) with interface 4 from Server.
How can I connect them all? Do I understand this interfaces and virtual switches properly?
When I do ping command I get: Reply from ...Server IP adress.. Destination host unreachable.
Virtual switch has static IP adress 192.168.1.1, when I set default Gateway on my interfaces I get error: warning- Multiple default gateways are intended to provide redundancy to a single networ. They will not function properly when the gateways are on two seperate, disjoint networks.
Your internal interfaces are suppose to have one configured for the current network your on and the other interface can be bridged to have the virtual network established. One interface will have the same Local Area network as the machine your using to run the virtual machines which allows your virtual machines to use the network. Also make sure you name your interfaces to keep them distinguished from each other, for example "NAT" and the other "Internalnet" hope this helps.
I am running a web server in my Windows 7 guest OS, while I want to access it from my Mac host OS.
The web server is running and I can access it from my guest OS, but not from its host.
I'm using Parallels Desktop and I've tried to change the networking mode from shared, bridged, to host-only with no result.
This is for development sake, so I just need it to be at least accessible to my host OS.
Is this actually possible with Parallels, or should I keep an eye on other VM engine?
You want to put your guest into "bridged" networking mode. This will allow it to obtain an IP address on the same network as your host OS (from your router via DHCP or statically configured).
See this:
Shared Networking – the recommended type of networking for the VM. Your virtual machine will share whatever network connection is used by
your Mac. You will be able to access the network from the VM as long
your Mac OS X is connected to the network. The only limitation of this
mode is that the VM is not visible from the external network
Bridged Networking – uses your network adapter. You should choose this mode if you want to access the VM from the external network.
Please keep in mind that your network configuration should allow using
DHCP to assign IP address for the VM, or you should obtain a static IP
for the VM and set it in the guest OS.