A) Converting a Name-based site to a ip-based site
login as root and run the command:

EditVirtDomain -c ipinfo,namebased=0,nbaddrs=\[\],ipaddrs=\[new_ip_addr\] domain_name
where
new_ip_addr is the new ip address
domain_name is the domain name of the site

e.g. EditVirtDomain -c ipinfo,namebased=0,nbaddrs=\[\],ipaddrs=\[10.5.3.2\] mydomain.com


B) Converting an ip-based site to a Name-based site

login as root and run the command:

EditVirtDomain -c ipinfo,namebased=1,ipadrs=\[\] domain_name
where
domain_name is the domain name of the site

e.g. EditVirtDomain -c ipinfo,namebased=1,ipaddrs=\[\] mydomain.com