cloud-zerotrust-cloudflare

| | Cloudflare Tunnel | Encrypted outbound-only connection from your infrastructure to Cloudflare's network, exposing internal services without opening inbound firewall ports | | Cloudflare Access | Identity-aware reverse proxy evaluating every request against access policies before granting access to protected applications | | WARP Client | Cloudflare's endpoint agent that routes device traffic through Cloudflare's network for policy enforcement and private network access | | Access Application | Configuration object defining a protected resource (self-hosted, SaaS, or infrastructure) with associated access policies | | Device Posture | Endpoint health signals (OS version, disk encryption, EDR status) evaluated as conditions in Access policies | | Cloudflare One | Unified SASE platform combining ZTNA (Access), SWG (Gateway), CASB, DLP, and RBI |

Tools & Systems

• Cloudflare Access: Identity-aware application proxy providing per-request authorization
• Cloudflare Tunnel (cloudflared): Daemon creating encrypted tunnels from internal networks to Cloudflare edge
• WARP Client: Cross-platform endpoint agent for device enrollment, DNS filtering, and private network routing
• Cloudflare Gateway: Secure Web Gateway providing DNS/HTTP filtering and DLP inspection
• Cloudflare Logpush: Real-time log streaming to external SIEM and storage destinations
• Access for Infrastructure: SSH and RDP access with short-lived certificates and session recording

Common Scenarios

Scenario: Startup with 200 Employees Deploying Zero Trust from Scratch

Context: A SaaS startup with 200 employees and no existing VPN wants to provide secure access to internal tools (Grafana, internal APIs, staging environments) running on AWS. Budget is limited, and the team has no dedicated security staff.

Approach:

1. Start with Cloudflare Zero Trust free tier (up to 50 users) for proof of concept
2. Deploy one cloudflared tunnel on an EC2 instance in the production VPC
3. Expose Grafana, internal wiki, and staging apps through tunnel with DNS routing
4. Configure Google Workspace as IdP for SSO authentication
5. Create Access policies requiring @company.com email domain for all applications
6. Add device posture checks for disk encryption and OS version
7. Upgrade to paid plan and deploy WARP client to all employee laptops via MDM
8. Enable Gateway DNS filtering and HTTP inspection for malware protection
9. Configure Logpush to send access logs to Datadog for monitoring

Pitfalls: Cloudflare root certificate must be installed on all devices for TLS inspection to work; some applications may break with TLS interception. Tunnel failover requires running multiple cloudflared instances or using Cloudflare's replicas feature. Access policies should always include a default deny rule. WebSocket applications may require specific tunnel configuration.

Output Format

Cloudflare Zero Trust Deployment Report
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Organization: StartupCorp
Team Name: startupcorp
Deployment Date: 2026-02-23

TUNNEL INFRASTRUCTURE:
  Active Tunnels: 2 (primary + failover)
  Tunnel Status: Healthy
  Connected Edge: Washington DC, Ashburn
  Ingress Routes: 8

ACCESS APPLICATIONS:
  Self-Hosted Apps: 6
  SaaS Apps: 3
  SSH/Infrastructure: 2
  Total Policies: 15

DEVICE ENROLLMENT:
  Enrolled Devices: 187 / 200
  WARP Connected: 182 / 187 (97.3%)
  Posture Compliant: 175 / 187 (93.6%)

ACCESS METRICS (last 30 days):
  Total Requests: 89,432
  Allowed: 88,756 (99.2%)
  Blocked: 676 (0.8%)
  Unique Users: 195
  Countries: 12
  Avg Session Duration: 6.2 hours