[ale] Monitor Internet Traffic

Jim Kinney jim.kinney at gmail.com
Wed Aug 12 15:44:08 EDT 2015


and another tutorial:
https://www.linux.com/learn/tutorials/305767-bandwidth-monitoring-with-
iptables
It's actually fairly simple. It could get hairy with more than a few
dozen IP to track but some automated tools would simplify that pretty
well.
You can set QoS rules somewhere. I've never done that but have a hard
need (teen and networked games WHILE watching netflix AND group skype
call).
On Wed, 2015-08-12 at 15:34 -0400, Chris Fowler wrote:
> 
> Don't spend more than a few minutes.  I would use that as an initial
> count of bytes by IP and then I would figure out a way to drill down.
>  I've seen NetFlow analyzers, but this requires me to install
> software/device that can sniff and convert to NetFlow traffic to the
> analyzer.  
> 
> I'm also looking at replacing the TP-Link with something that will do
> a little more.  Maybe I use a bridge and locate a used Cisco AP. 
>  Cisco supports NetFlow so I may be able to feed that into a package
> named Scruitnizer.
> 
> I would then like to figure out a way to give  my desktop traffic #1
> priority. I use SSH all over so I want my typing to never be slow due
> to NetFlix, YouTube, etc.  
> The first project will be to increase visibility of the traffic. 
>  Then I'll focus on QoS issues.
> 
> From: "Jim Kinney" <jim.kinney at gmail.com>
> To: "Chris Fowler" <cfowler at outpostsentinel.com>
> Cc: jimkinney at gmail.com, "Atlanta Linux Enthusiasts - Yes! We run
> Linux!" <ale at ale.org>
> Sent: Wednesday, August 12, 2015 3:15:17 PM
> Subject: Re: [ale] Monitor Internet Traffic
> 
> It will take a while to dig this up. I did this about 10 years ago
> and I'm not sure I kept it.
> On Aug 12, 2015 3:11 PM, "Chris Fowler" <cfowler at outpostsentinel.com>
> wrote:
> > 
> > 
> > From: "Jim Kinney" <jim.kinney at gmail.com>
> > To: "Atlanta Linux Enthusiasts - Yes! We run Linux!" <ale at ale.org>
> > Sent: Wednesday, August 12, 2015 2:54:36 PM
> > Subject: Re: [ale] Monitor Internet Traffic
> > 
> > Use iptables and add a counter table that update based on mac or
> > ip. Then run a cron to read the table values and dump into rrd.
> > 
> > This is counting bytes?  I like it.  Example rule?
> > 
-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain

http://heretothereideas.blogspot.com/
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