Change Domain Functional Level to windows 200 native mode on command line

The following illustrates on how to changes domain functional level to windows 2000 on command prompt.

1. Assume the domain name "myrootdns2003.com".
2. Create a file say change_domain_mode.ldf with the following contents.
dn: myrootdns2003.com
changetype: modify replace: ntMixedDomain ntMixedDomain: 0
3. Now run the below command to change the functionality level to windows 2000 mode.
ldifde -i -f change_domain_mode.ldf

4. Alternatively, use the admod command to change the functionality level.
admod -b dc=myrootdns2003,dc=com "ntMixedDomain::0"