TCP Monitoring: Validated Uptime & Performance Alerts
Proberix offers TCP uptime and performance monitoring. It includes payload support, response validation, TLS configuration, and intelligent alerts, with operations conducted from globally distributed locations.
What is TCP Monitoring?
TCP Monitoring is a low-level network check that verifies the availability of a service by attempting to establish a Transmission Control Protocol (TCP) connection to a specific IP address and port. It's ideal for monitoring any public-facing application that communicates over TCP
Server Monitoring Use Case
Monitor database servers like MySQL, PostgreSQL, Redis, and MongoDB ports to ensure your data services remain accessible and responsive.
Network Infrastructure Monitoring
Track email servers (SMTP), FTP services, and legacy TCP applications that don't expose HTTP endpoints but are critical to operations.
Custom Protocol Monitoring
Send unique payloads to validate application-specific logic and expected responses from your external-facing services.
Advanced TCP Monitoring Features
Beyond Basic Uptime Monitoring
Proberix doesn’t just check if a port is open - it confirms that a connection to your service is successful and the response behaves as expected. You get real insight into both uptime and proper functionality.
Multi-Region Network Monitoring
TCP services can behave differently depending on the client’s region - due to routing, firewalls, or network congestion. Proberix runs TCP checks from multiple global locations simultaneously.
Configurable TLS Support
Proberix can monitor public services over TLS and lets you control certificate validation—rejecting self-signed, expired, or invalid certificates when needed.
Custom TCP Payload Testing
Send payloads in plain text, base64, or hex format. Test database handshakes, SMTP servers, or simulate HTTP requests over raw TCP with precise control.
TCP Response Validation
Validate TCP service responses using string matching, regex patterns, or content verification. Ensure your services return expected data, not just connection success.
Intelligent Performance Alerts
Set custom latency thresholds, monitor rolling averages, and define alerting policies based on response times or regional failures. Proberix reduces alert noise with smart filtering and precise triggering.
Network Change Detection
Track how TCP service responses evolve over time. Automatically detect configuration changes, service updates, or performance degradation with diff visualization.
Full Response Capture for Debugging
Proberix stores raw TCP responses from your services, helping you troubleshoot issues, validate behavior, and maintain transparency. Use captured data to analyze mismatches, timeouts, or unexpected outputs.
Network Performance Analytics
View detailed charts of TCP response times, connection success rates, and historical performance data. Analyze network trends over time.
How TCP Monitoring Works
Understand the full lifecycle of a TCP check—how it’s executed, verified, and analyzed in real time.
Check Scheduled
Proberix schedules a TCP check for your target host and port at your chosen interval and configuration.
Executed Globally
Multiple global probes independently attempt to establish a TCP or TLS connection to your service in parallel.
Payload Sent & Validated
If configured, the probe sends a payload and optionally validates the response using your custom rules.
Results Aggregated
Each location sends the result back to the main server, where it’s stored, analyzed, and used for alerting and dashboards.
Start Monitoring TCP Uptime and Availability
Proberix makes it easy to monitor TCP ports and services from multiple global locations. Get notified instantly when your services go down or fail to respond as expected.
TCP Monitoring FAQ
Deep-Dive into Proberix TCP Monitoring
Learn how Proberix handles raw TCP checks, TLS validation, legacy systems, custom protocols, and global availability monitoring.
Can I monitor legacy services that don’t speak HTTP?
Yes. Proberix supports raw TCP checks with custom payloads, making it ideal for legacy systems like telnet-based interfaces, custom SCADA protocols, or embedded devices that use proprietary TCP communications.
How does Proberix validate service behavior beyond just port availability?
After establishing a TCP connection, Proberix can send a payload and optionally validate the response against a defined pattern. This helps detect application-level failures even if the port is open—useful for detecting stale services, partial outages, or failed handshakes.
Can I monitor TLS-enabled services with strict certificate validation?
Yes. Enable TLS and enforce certificate validation to reject expired, mismatched, or self-signed certificates. Proberix lets you control this behavior per endpoint, which is useful for public services requiring strict compliance.
How are TCP probes executed across regions?
Proberix runs TCP probes simultaneously from independent locations worldwide. This approach ensures accurate visibility into regional performance issues, avoids round-robin inconsistencies, and supports location-specific alerting policies.
What response data does Proberix capture for debugging?
Proberix captures and stores raw response data (if available) for each probe. This helps troubleshoot invalid responses, certificate errors, or service misconfigurations. Captured data is retained for 7 days for review and debugging.
How granular are alerting and performance thresholds?
Alerts can be triggered based on connection failures, latency thresholds, invalid TLS certs, or response mismatches. You can set conditions like “fail if 3 out of 5 regions exceed 400ms latency over 10 minutes,” giving you fine-grained control.