Addittional Domain Controller

Requirements: 

D.C.
Static .P.
DNS
Stand-alone or Member Server.

Step1: on Stand alone machine or member server 
35 Specify I.P.
36 Specify prefer DNS as servers IP.
37 Start > run >ping server’s IP.

Step2: >start >run >dcpromo>next>next>select ADC for an existing domain 
38 Specify administrator’s name & pwd.
39 Domain name of DC (eg.zoom.com)
40 Browse the domain
41 Next>next> restore pwd.

ADC is a back up for DC

42 ADC maintains a back up copy of A.D., which will be in read only format.
43 ADCs provide fault tolerance & load balancing
44 There can be any no. of ADCs for a DC.
45 ADCs should be placed and maintained offsite away from the DC.
46 ADC maintains same domain name.

Verifying whether the server is configured as DC or ADC.

47 Start>run>cmd>net accounts
48 For DC we will find “primary”
49 For ADC we will find “Backup”