Is it ok to have a vps running a website just with 1 ip adress? or are there any complications and all?
A single IP is fine. DNS will work with both name server pointed to that IP, or, you could use an external provider. Chris
Hi That totally depends what you are doing on the server, if you're just hosting your own site then sure that's no problem, if you're running a site that will run with SSL along with some other sites or you're using certain control panels you might run into issues but nothing too painful to resolve. It would also be good practice to use a external provider for your DNS.
if you are running several directories , blogs etc in same vps then you may look to get some more ips for seo purpose