Example 1 Using nsupdate Interactively To Change an IP Address

NOTE: for Linux - use FQDN for entries

The following example shows the interactive use of nsupdate to change an IP
address. It deletes any existing A records for a domain name and then inserts
a new address. Since no prerequisites are specified, the new record will be
added even if there are no existing records to delete. 

example$ nsupdate
>update delete test.example.com A
>update add test.example.com 3600 A 10.1.1.1
>send
>quit

Example 2 Using nsupdate Interactively to Add a CNAME (Alias)

In the following example, a CNAME (alias) is added to the database only if
there are no existing A or CNAME records for the domain name.

example$ nsupdate
>prereq nxrrset www.example.com A
>prereq nxrrset www.example.com CNAME
>update add www.example.com 3600 CNAME test.test.com
>send
>quit

Example 3 Using nsupdate Interactively With a Key

In the following example, nsupdate is signed with the key mykey, which is
located in the directory /var/named/keys.

example$ nsupdate -k /var/named/keys:mykey
>update add ftp.example.com 60 A 192.168.5.1
>

#
# when doing non-vcs nsupdate, use FQDN for A records
#
#   update add    vcs-test-cname.mydomain.com 300 CNAME systemx.mydomain.com

/opt/VRTSvcs/bin/DNS/nsupdate

>update delete vcs-test-cname.mydomain.com CNAME
>update add    vcs-test-cname.mydomain.com 300 CNAME systemx
>update add    testname.mydomain.com 86400 CNAME testname-n-vip 
>send
>quit