Linux
Which Process Is Using That Port? Mapping a Listening Port to a PID on Linux
A service will not start because "Address already in use". A port is open that nobody can account…
Articles
Category: Networking
Networking
sFlow vs. NetFlow: A Practical Guide to Sampling-Based Network Monitoring
sFlow and NetFlow both give you network visibility without tapping every packet, but they work in fundamentally different…
Networking
Self-Hosted Network Monitoring: Keep Your Flow Data On-Premises, No Cloud Required
Your network traffic is a map of everything your organization does. With most SaaS tools it lives in…
Networking
Beyond Static Thresholds: How Adaptive Baselines Catch Network Anomalies Fixed Rules Miss
Static thresholds either cry wolf or miss the slow attack. Adaptive baseline anomaly detection learns what normal looks…
Networking
Detecting DNS, NTP, and Memcached Amplification Attacks from sFlow
Amplification attacks turn a handful of spoofed packets into hundreds of gigabits of traffic by abusing UDP services…
Networking
Spotting SYN, UDP, and ICMP Floods in Real Time with Flow Telemetry
Volumetric and protocol floods are the blunt instruments of the DDoS world, and they still work. A SYN…
Networking
Client-Server LAN Business Apps That Are Also VPS-Ready
The same BackendSide business software that serves your office over the LAN can be installed on a VPS…