If you want a computer to be a member of an Active Directory domain, you should add that computer to the Active Directory Domain. Following steps will make the stand-alone server SERV02, a member of Active Directory domain omnisecu.com.
Before proceeding, make sure you have connectivity from computer SERV02 to SERV01.omnisecu.com, by pinging to 192.168.1.11, which is the IP address of Active Directory domain controller SERV01.omnisecu.com.
Configure SERV02 TCP/IP configuration to use the Domain Name System (DNS) server installed on SERV01.omnisecu.com for host name resolution. To configure the computer SERV02 to use the Domain Name System (DNS) server running on SERV01.omnisecu.com, open the TCP/IP properties of SERV02.
In the preferred DNS server field, enter the IP address of computer 192.168.100.11, which is the IP address of the domain controller SERV01.omnisecu.com. We have the Domain Name System (DNS) services also running on SERV01.omnisecu.com. Now SERV02 will make use of the Domain Name System (DNS) services running on SERV01.omnisecu.com for name resolution.
After configuring the TCP/IP settings in SERV02, open the "System" applet from the Control Panel by choosing the path Start > Control Panel > System. (You can also open the "System" applet by right clicking "My Computer" and selecting the "Properties" from the context menu). Click the "Computer Name" tab.
Click the "Change" button.
Inside Computer name tab, select the "Domain" radio button and enter the Active Directory domain name, to which you are trying to add your computer.
Enter the Administrator account user id and password at the domain level, Click "OK".
A welcome message dianlog box will be displayed and a prompt to restart the server SERV02 also will be displayed when you click the OK button at the welcome message.
Click "OK" to restart the server. SERV02 is now a member of Active Directory domain omnisecu.com and the Fully Qualified Domain Name (FQDN) of SERV02 now is SERV02.omnisecu.com