Define Multi homed server?

Server with 2 or more NIC cards.

DHCP Super scope

Combination of 2 scopes. Ex: 192.168.1.1 and 192.168.2.1

We combine these 2 to lease out the ipaddress no matter the network ID

One client can get 192.168.1.1 and another client can get 192.168.2.1

So now when client A wants to talk to client B. they can’t communicate as the network ID’s differ. Now we need to install RRAS on DHCP server.

In a scenario like this we need to have the default gateway as ipaddress of DHCP server.

Fault tolerance in DHCP

Coming to fault tolerance, we can’t have 2 dhcp servers with same scopes. We can only have 2 scopes with ipaddress divided.

If DHCP server 1 as 192.168.1.130 , we can have DHCP server 2 with scope as 192.168.131.254.

Domain controller for domain XYZ.com cannot be connected error message

When we are trying to add a client or server machine to a domain i.e. making a member of domain and when you receive an error message as “domain controller for domain google.com cannot be connected” make sure the preferred DNS ipaddress in the TCP\IP properties is correct, pointing to DNS server. As the DNS server has the srv records to connect to domain controller.

To check the directory partitions we have in a forest

Cmd

Ntdsutil

Domain management

Domain management :Connections

Server connections: connect to server server01

Exit

Domain management: list

Now we will receive list of domain partitions.