live traffic
Posts tagged “live traffic”.
Find what's eating your bandwidth in the background
Sort Task Manager's Network column or Resource Monitor's Network Activity to catch what is using your bandwidth right now. To catch what used it an hour ago, you need per-app history.
How to find which app is using a port on Windows
Run netstat -ano to get the process ID (PID) that owns the port, then look that PID up in Task Manager. PowerShell's Get-NetTCPConnection and Resource Monitor give the same answer.
How NetSecWall sees every connection without a driver
NetSecWall reads what Windows already records: kernel network events through ETW, DNS answers, and the TCP and UDP tables. It sees which app talks to which address without capturing a single packet.
How to monitor network traffic per app on Windows
Task Manager and Resource Monitor show a live per-app figure. To see where each app connects, how much it sends, and what it did yesterday, you need a per-app monitor that keeps history.
What is a port? 443, 53, 3389 and friends
A port is a number from 0 to 65535 that tells a computer which program a piece of network traffic is for. Servers wait on well-known ports like 443 or 53; your side uses a random high port.
Why is my PC uploading data when I'm not using it?
Usually it's cloud sync, a backup, Windows Update sharing pieces of updates, telemetry or a forgotten browser tab. Sort your apps by upload rate to find the one responsible.
How to see which apps are using your internet on Windows 11
Task Manager's Network column shows which apps are busy right now; Resource Monitor and netstat show where each one connects. For history, countries and alerts you need a per-app monitor.
ESTABLISHED, TIME_WAIT, LISTENING: TCP states decoded
TCP states show where a connection is in its life: LISTENING waits, SYN_SENT is dialing, ESTABLISHED is talking, CLOSE_WAIT and TIME_WAIT are the goodbye. Most are harmless; piles of some are clues.
Why every app connects to Cloudflare, Akamai and Amazon
Most software companies don't serve their apps from their own servers. They rent content delivery networks and cloud platforms, so the address owner you see is usually the host, not the company.