how to add a dedicated ip to a virtual machine on vmware esxi - networking

So I have a dedicated server with 3 ip addresses, 1 belonging to the dedicated server and 2 additional ones for virtual machines.
How can I assign one of the free Ip addresses to a specific virtual machine?
I tried making a VMkernel NICs for one of the ips but was not sure as to what i was doing since im new to this.

Related

How to use ICS with multiple VMs without losing the explictly set IP addresses for each VM's Network Interface

I am using VMware Workstation on a Windows 10 machine to add a Ubuntu Server and a Windows Server VM. This is to complete a virtual networking (firewall packet filtering) exercise using GNS3. The goal is to have 3 separate networks routed using virtual CISCO routers so I really need to have the IP of machines explicitly set to simulate different networks.
All of this is fine and I can ping from the host to the machines and the machines to the host but I'd also like to somehow be able to access Internet through each of the machines.
When I use Internet Connection Sharing and specify a single virtual adapter it warns me and changes the IP range to 192.168.137.x which is not desirable. When I want to use ICS for both VMs I create a bridged connection and apply ICS to that but again it changes my IP settings.
Is there a way I can share my hosts Internet Connection with each of the machines but keep the IP addresses and ranges I require?
Or, do I have to approach this a completely different way?
BTW, I'm using the Network Adapter type of 'Host Only' rather than Bridged or NAT as I cannot explicitly set IP addresses on those options.
I was overthinking it.
Using VMware I simply had to add an additional device Network Adapter (under VM > Settings) with a type of NAT to enable the VM to share my host's Internet. Of course, the existing interfaces (with the explicitly set IPs) were kept in place so it did not affect my virtual networking environment.

How does gethostbyaddr work on networks without an internal DNS server?

If I run socket.gethostbyaddr(ip) in Python for example, I can get back the host name of the device with the specified IP address.
I understand that large networks have internal DNS servers to keep track of the IP host pairings, but how is this task accomplished on small home networks without an internal DNS server?
If you are trying to resolve names for hosts on your LAN, you may choose to populate your hosts file (/etc/hosts on typical *nix systems) with static entries for your local hosts. Generally, by default, the resolver consults the hosts file before going out to the DNS servers provided by your ISP.
If the hosts on your LAN are themselves using dynamic addressing through DHCP for address assignment, then you are facing a more dicey solution. I tend to stick with static addressing on my house LAN for just this reason.

VMware private internal network

I have 4 virtual machines, a client using windows 7 and 3 servers, one of which is a core server installation the other two are standard windows servers. I need to give all machines a static IP address from the range 192.168.0.0/24 and make sure they are all on a private internal network called intnet.
Can anyone give me general guidelines on how I would go about doing this?? As in how to actually set up a private internal network for these machines and then assign each VM to this network?? I am assuming that the network is created in the client windows 7 machine and then the servers are added to this network but i can't seem to find basic information on how to go about this on the net.
Any input appreciated.
VMWare already does all this for you.
It creates:
Two internal subnets
a virtual IP address in the first subnet that is bridged to a real NIC of the host.
an IP address for each VM in the second subnet.
routing between the two subnets.
There is a program called 'Manage virtual networks' that does what it says.

Connect to VM running on the same computer without LAN

I have a windows 2003 VM running on my windows xp machine.
The machine name of the VM is itdom.domain.com
The windows xp host machine is disconnected from the LAN.
I want to be able to connect to the VM from the host and vice versa using there computer names. For example the URL http://itlab.domain:7080/domainsm must be accessible from the host computer.
Is there any configuration that I can do on any of the machine to do this.
Just because you have no physical network connection doesn't stop you setting up networking on the host and guest machines. One way of doing this is to add an IP address to the host machine's physical network port and create a bridged network on that port so that the guest can also see it.
You don't say which VM technology you are using, but in many of them you can setup an internal network between the host and guest. All you need to do then is edit each hosts file to add a hostname for the IP address of the other machine. You may also need to configure firewalls to allow access between the two.
No doubt there are also other ways to achieve this.

Network: Virtual PC 2007 Can't Access Host Using NAT

I can't access my host machine from my guest machine using the computer name (i.e. WINS). I can access it using whatever IP address it happens to have at the time, but I need a consistent way of accessing it (even if I'm not online).
I have a Windows Server 2003 guest virtual machine and a Vista host. I'm using Shared Networking (NAT). I'm running Microsoft Virtual PC 2007 SP1. I've set my DNS server to 192.168.131.254 and everything else is DHCP. Any help is appreciated.
Make a domain name in the windows hosts file on the Vista Host system:
C:\WINDOWS\system32\drivers\etc\hosts
172.16.16.4 localserver
Here is the blog that explains it:
http://blog.flexuous.com/2007/02/04/virtual-pc-ip-routing-enabling-vpc-nat-loopback-connector-at-the-same-time/
You didn't mention the network setup. If you happen to control the router, such as a home network, you've got a couple of options.
Dynamic DNS updates. When a host gets it's IP address via DHCP, it can automatically update it's DNS records with it's hostname. This is similar to services such as dyndns, but also works on your local network without net access.
Static DHCP Assignments - Assign an IP address to MAC Address relationship on the router, so that every time a DHCP request is sent out from that MAC, it will always get the same IP address. Then you can add this address to your hosts file for access via name.
Another option would be to setup a static loopback device on both the host and the guest and place them in their own private network. That way, the IP address will never change. Then, you can add the corresponding IP addresses into the host files of each respective machine to reference by name.

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