TCP/UDP Scanning
Full-spectrum port scanning across all 65,535 TCP and UDP ports. Identify every open port, filtered port, and service binding on your infrastructure.
65,535 Ports
Full TCP + UDP coverage per host
Port Monitoring
Know the instant an unauthorized port opens
Continuous TCP and UDP port monitoring with service fingerprinting. Detect rogue services, unexpected changes, and unauthorized access points in real time.
Features
Comprehensive port intelligence for your infrastructure
Three layers of visibility into every port across every asset you manage.
Service Fingerprinting
Identify exactly what software is running on each open port — version numbers, banners, and known vulnerabilities associated with detected services.
Services Detected
Live
nginx/1.24, OpenSSH/9.3, PostgreSQL/16
Port 443 — nginx/1.24.0
Port 22 — OpenSSH 9.3p1
Port 5432 — PostgreSQL 16.1
Port 6379 — Redis 7.0 (no auth)
Change Detection
Instant alerts when ports open, close, or change services. Track every state transition with full audit history.
Port Changes
LivePort 3306 opened
MySQL — 2 min ago
Port 8080 closed
Tomcat — 15 min ago
Port 22 service changed
OpenSSH 9.2 → 9.3 — 1 hr ago
How it works
Three steps to complete port visibility
From setup to continuous monitoring in under five minutes.
Step 1
Define
Add your assets — IP addresses, domains, or CIDR ranges. Define which ports you expect to be open and set your monitoring policy.
Step 2
Monitor
FortWatch continuously scans all 65,535 TCP and UDP ports, fingerprints running services, and tracks every state change over time.
Step 3
Alert
Get instant notifications via Slack, email, or webhook when unauthorized ports open, services change, or unexpected bindings appear.
FAQ
Common questions about port monitoring
FortWatch scans all 65,535 TCP ports and the most common UDP ports on every asset. You can customize the scan scope to focus on specific port ranges or expand to full UDP coverage based on your needs.
Port scans run continuously on a configurable schedule. By default, critical assets are scanned every hour and standard assets daily. You can trigger on-demand scans at any time from the dashboard.
FortWatch scans are designed to be non-intrusive and use rate-limited, stealthy scan techniques. We provide our scanner IP ranges so you can whitelist them in your firewall and IDS/IPS systems.
Port change alerts can be sent via email, Slack, Microsoft Teams, PagerDuty, and custom webhooks. You can configure different channels for different severity levels and asset groups.
Yes. You can define which ports should be open on each asset and FortWatch will alert you when reality deviates from your baseline — whether a new port opens or an expected port closes unexpectedly.
65K+ Ports per host
Full TCP and UDP port coverage on every monitored asset.
Real-time Detection
Instant alerts on port state changes, new services, and unauthorized bindings.
24/7 Monitoring
Continuous port surveillance with configurable scan intervals.
Ready to secure your stack?
Secure your entire stack today
Start scanning in under 5 minutes. No credit card required. 14-day free trial included.