On 2020-04-08, Grant Taylor <[email protected]> wrote: > On 4/8/20 7:39 AM, Grant Edwards wrote: >> NB: The cheap VPS instances that I work with do have static IP >> addresses, but they share that static IP with a bunch of other VPS >> instances. If you want your VPS to have a non-shared static IP >> address, then make sure that's what you're signing up for (it costs >> more). > > I think we're thinking two different things for VPS. I'm thinking > Virtual Private Server, as in a Virtual Machine. > > I've not seen any Virtual Private Servers that re-use the same IP as > other Virtual Private Servers. > > It sounds to me like you might be talking about Virtual Hosting of web > sites, which do tend to put multiple web sites on the same IP.
No, what I'm talking about are vendor-provisioned RedHat VMs. I was having problems sending emails from my server due to lack of reverse DNS for the IP in question. When I asked the provider if they could set up reverse DNS for that IP, they said no they can't because that IP is shared with other VM hosts. Therefore, it's not possible for them to map that static IP address to my FQDN. IIRC, I send email through sendgrid. If I wanted sole usage of a static IP (which would allow reverse DNS), I'd have to move up a tier in the product list and pay more. That said, the VM in question does have two virtual web hosts (with separate FQDNs) which would share the same IP even if I did cough for the next higher tier where that VM has sole ownership of a static IP. I only need to send mail from one of the two FQDNs that poit to that IP, so that would be OK. -- Grant
