Managing multiple domains with one IP

Need some clarification

[henry0]

I usually use one IP per domain.
I am moving a few sites to a managed dedicated server environment and plan starting with 5 IPs
For 2 sites that require SSL I know that I need to dedicate an IP per SSL.
But I have a bunch of small sites that do not call for SSL.
I will use multiple VPSs
As such it is not quite clear in my mind how “sharing” an IP works
Or even if it is a bad move?

Thanks for sharing your expertise

[physics]

Sharing and IP is no big deal to set up. You set up those domains in Apache as VirtualHosts under the same IP. Then you point each domain to that same IP in your domain configuration panel (or tell whoever is managing your domains to do that).
From an SEO standpoint it's bad if you want to cross link the domains or if there's any fear that one of the domains might get banned by hand. It's also probably bad to have thousands of domains on the same IP since parking services do this. But otherwise I think it should be OK IMO, though I think unique IPs are preferable if you can afford it.

[henry0]

Well I will be managing and handling the whole ops
I was pretty sure of what "I was expecting not to hear about" :)

BTW I will host pretty close from WebmasterWorld, so you know where I will setup my accounts!

I'm on my way to get a whole bunch of IPs before IPs will no longer be available

Thanks