Network - Monitoring

1 - About

Monitoring (ie reading performance metrics op interval)

For traffic capturing, see Network - Trace (Capture|Sniffer|Analyzer) Tool (Packet Analysis)

3 - Tools

3.1 - NetHogs

nethogs. NetHogs is a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process. NetHogs heavily relies on /proc, most features are only available on Linux.

4 - Process

4.1 - strace

OS - strace (Interactions between processes and the Linux kernel)

To start and monitor an new process:

strace -f -e trace=network -s 10000 PROCESS ARGUMENTS

To monitor an existing process with a known PID:

strace -p $PID -f -e trace=network -s 10000

4.2 - ProcMon

procmon can capture network event. Open the chm file

Process Monitor uses Event Tracing for Windows (ETW) to trace and record TCP and UDP activity. Each network operation includes the source and destination addresses, as well as the amount of data sent or received, but does not include the actual data.


set PM=C:\sysint\procmon.exe

REM ensures that the process detaches from the console window, which allows it to run concurrently with the later commands.
start %PM% /quiet /minimized /backingfile C:\temp\notepad.pml

REM the batch file to pause until the first instance is up and running and actively capturing events. 
%PM% /waitforidle
start /wait notepad.exe

REM the first instance to stop capturing, commit any outstanding data to the backing file and exit cleanly. 
%PM% /terminate

where Dos - Start Command

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