Re: auditing network traffic

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if you have sar installed (package is sysstat) then sar -n DEV will
give you 10 minute network counters, it will give you 1 minute data if
you turn sar's sample timer down to 1 minute.

snmp if you router supports it, and I have also ssh'ed into my router
ever X minutes and collected its network stats on routers that did not
properly support snmp.
On Tue, Nov 27, 2018 at 2:28 PM Tim via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Tim:
> >> If I want to check on how much data my computer's been putting
> >> through my ISP over the last few days, is there anything logged by
> >> default that I can look at, or do need to install something extra?
>
> Ed Greshko:
> > Are you saying you have a single system with only traffic going to
> > the ISP?
>
> No, it's several devices going through a modem/router, which doesn't
> really give enough info, so I was hoping I could find something on the
> computer to rule it in or out as being the sudden upturn in traffic.
>
> While basic info is easy to find out (like how much data since it
> connected), that doesn't tell me anything about what it used yesterday,
> or the day before, etc.
>
> I'd been keeping an eye on that, day by day, manually, as I was getting
> closer to going over my monthly quota, then suddenly I've been rated
> limited as 12 gigs has gone through *somewhere*.
>
> To make matters worse, the rate limiting is so severe that many
> websites just time out and fail (including the ISP's own website).
> While the ISP claims that they throttle you, rather than charge you
> more or cut you off, to allow you to continue using the internet until
> the next month, it doesn't work.
>
> Conversely, when they had a network configuration fault that limited me
> by the same amount, earlier this year, that speed was considered so
> unusable as to be worthy of giving me a refund.
>
> It seems that in today's modern high-bandwidth internet, if you can't
> finish loading a page in a few seconds, it aborts on you.  To be more
> weird, the ISP has a transparent proxy, that ought to mitigate that
> issue (they could grab the page in one go, and feed it to you slowly).
> For the major ISP that is the backbone for the entire country, they're
> very crap at doing their job.
>
> --
> [tim@localhost ~]$ uname -rsvp
> Linux 4.16.11-100.fc26.x86_64 #1 SMP Tue May 22 20:02:12 UTC 2018 x86_64
>
> Boilerplate:  All mail to my mailbox is automatically deleted.
> There is no point trying to privately email me, I only get to see
> the messages posted to the mailing list.
>
> If "2001: A Space Odyssey" taught us anything, it's that Siri will,
> one day, murder us all.
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