What is a VPC in cloud hosting?

A Virtual Private Cloud (VPC) is an isolated private network that connects your cloud servers. Traffic between servers on the same VPC stays on the private network — never exposed to the public internet.

Do I need a VPC for a single VPS?

No. VPC is only useful when you have multiple servers that need to communicate — for example, a web server talking to a database server, or an API server talking to a cache layer.

Yes. Traffic between servers on the same VPC private network does not count toward your bandwidth quota. Only traffic over the public internet is metered.

How do I connect my servers to a VPC?

On HostStack, you assign servers to a VPC via the control panel. Each server gets a private IPv4 address (e.g., 10.0.0.x) and can reach other VPC members directly on that address without going through the public internet.

VPC Private Networking India 2026: Why Every Multi-Server Setup Needs It

By HostStack Editorial · Last updated: May 2026 · All posts

If you're running a web application with more than one server — a web tier, database, cache, or queue — you should be using a VPC (Virtual Private Cloud). Without one, your database is either exposed to the public internet (a security risk) or you're paying for bandwidth every time your web server talks to your database. This guide explains VPC private networking for Indian cloud setups.

What is a VPC and why does it matter?

A VPC is a private network that exists only within your cloud provider's infrastructure. Servers on the same VPC can communicate with each other using private IP addresses (typically 10.x.x.x or 192.168.x.x) without the traffic ever leaving the datacenter.

Benefits:

Security — your database never exposes port 3306 to the internet
Speed — private network latency is typically <1ms vs 5–15ms over public internet
Cost — intra-VPC traffic is free; you don't burn bandwidth quota
Compliance — isolating sensitive services is a requirement for PCI-DSS and other standards

Classic multi-tier architecture using VPC

A standard three-tier web app on Indian cloud:

Web server (public IP + VPC private IP) — receives HTTP/HTTPS from the internet
Database server (VPC private IP only) — accessible only from web server via private network
Cache server / Redis (VPC private IP only) — no public internet exposure at all

Without VPC, you'd either firewall the DB to your web server's public IP (fragile) or expose it to the internet (dangerous).

VPC vs Security Groups vs Firewall

VPC — defines which servers can see each other at the network layer. Isolation by design, not by rule.

Security Groups / Firewall rules — control which ports are open. A firewall on the public interface controls external access; VPC controls internal access.

Use both: VPC for topology isolation, firewall for port-level control within the VPC.

Setting up VPC on HostStack

HostStack's VPC private networking is currently in development for the Mumbai datacenter. Join the waitlist to be notified when VPC goes live, or contact our team to discuss enterprise multi-server setups with private networking now.

Interim approach: WireGuard VPN

Until VPC is available, you can create a private network between HostStack VPS instances using WireGuard:

Install WireGuard on each server
Assign each server a private IP (e.g., 10.0.0.1, 10.0.0.2)
Exchange public keys between servers
Configure your application to use the WireGuard interface IP for internal communication

WireGuard adds encryption overhead but provides genuine network isolation for free on any VPS plan.