Networking & Cloud Firewall

1st Services provides a programmable software-defined network (SDN) layer that allows you to isolate infrastructure, balance traffic, and shield endpoints from DDoS threats.

Private VPC Networks

Virtual Private Clouds (VPCs) enable secure communication between your VPS instances, Managed Databases, and Block Storage without routing traffic through the public internet.

• Zero egress charges: Traffic within a VPC in the same region is completely free.
• Microsecond latency: Direct kernel-level routing across 100Gbps spine switches.
• Custom CIDR ranges: Default 10.244.0.0/16 or configure your own subnets.

Cloud Firewall Rules

1st Cloud Firewalls filter traffic at the hypervisor level before packets reach your VPS operating system.

Creating Firewall Rules via API

POST https://api.1st-services.com/v1/firewalls

{
  "name": "web-and-ssh-shield",
  "inbound_rules": [
    {
      "protocol": "tcp",
      "ports": "22",
      "sources": ["198.51.100.0/24"] // Restrict SSH to your office IP
    },
    {
      "protocol": "tcp",
      "ports": "80,443",
      "sources": ["0.0.0.0/0", "::/0"] // Public HTTP/HTTPS
    }
  ],
  "outbound_rules": [
    {
      "protocol": "all",
      "destinations": ["0.0.0.0/0", "::/0"]
    }
  ],
  "applied_to": ["vps_8931274"]
}

Anycast Floating IPs

Floating IPs allow you to instantly redirect public traffic between VPS instances in an active-passive or blue-green failover setup without updating DNS records.

curl -X POST https://api.1st-services.com/v1/networking/floating-ips/fip_48219/assign \
  -H "Authorization: Bearer $FIRST_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"target_vps_id": "vps_8931275"}'