Why a Server Needs Multiple IP Addresses — and When One Is Enough

Every VPS comes with one IP address, and in most cases that’s enough. But there are situations where a second address saves hours of troubleshooting and your domain’s reputation.

When one address is enough

Multiple websites on one server live perfectly well on a single IP: the web server tells them apart by domain name, and SSL certificates are issued for each domain separately. 1C, a database, a bot, a CRM — also one address. Don’t buy addresses “just in case.”

When you need a dedicated IP

• Mail server. Sender reputation is tied to the IP. If the same address hosts a website with a form that’s being used for spam, company emails will start landing in spam. Give mail its own address with a correct PTR record.
• VPN for employees. A dedicated address for the VPN gateway lets you firewall off everything else without interfering with your websites.
• Services on the same port. Two different applications that need the same port (e.g. 443 without a proxy, RDP, game or voice servers) — one address each.
• Test and production environments. A copy of the website or 1C for testing updates on a separate address — without risking the main system.
• Client and bank allowlists. Integrations with a bank or partner often require a fixed IP that they add to their allowlist. For that, the address must be dedicated and permanent.
• Reputation separation. A public website with user-generated content is best kept separate from corporate services.

How it’s arranged

On a VPS, additional addresses are added via the calculator or a request — up to five per server, more on request. For servers in a rack (colocation), we allocate addresses or /29 subnets and larger; you’ll need a short description of what they’re used for. We set up reverse DNS (PTR) for mail free of charge. If your company has its own address block, it can be announced via our autonomous system over BGP — documents for the block are required.

How much it costs

For a VPS — 1 000 UZS per address per day (about 30 000 UZS per month), for colocation — 1 500 UZS per day. Billing is daily: you can take an address for a temporary environment for a week and return it.

What about IPv6

For internal tasks and future-proofing — on request; most local services and clients still run on IPv4, so the primary address is still IPv4.