In most cases, our clients opt to configure their initial 2 IP addresses as follows:
Primary server IP address
- Shared IP (all domains are set up to use this IP address by default)
- Primary nameserver (i.e. ns1.example.com)
2nd IP address
- Dedicated IP for a priority domain #1
- Secondary nameserver (i.e. ns2.example.com)
This is not to say that you have to use the IP addresses in this manner, but it is what we’ve found most of our clients do.
While you can technically have all of your domains on the primary shared IP address, some of your domains may benefit from being on their own dedicated IP. An example would be an e-commerce site with an online store that requires an SSL certificate to ensure an encrypted connection of sensitive data.
Remember, nameservers do not restrict the use of an IP address — you can assign a dedicated IP to a domain even if the IP is being used by a nameserver.
Lastly, you are always welcome to purchase additional IPs.
Photo by Martin Pettitt