ifconfig/ip -s probably reports closest to what the ISP is metering. And I assume that is what Netstat/darkstat is measuring. But the data on that tab is reset every reboot. I assume the interface RX/TX bytes are reset to zero on boot (and/or on taking the interface down/up). I would need to make sure to capture the values on shutdown... and maybe at regular intervals. Any suggestions on how to capture final values as an interface is shutdown?
Measuring in iptables might provide more granularity, but may not map as closely to the raw data comcast measure. David On Tue, Jan 26, 2021 at 10:57 AM Lonnie Abelbeck <li...@lonnie.abelbeck.com> wrote: > > > > > On Jan 26, 2021, at 8:29 AM, Michael Keuter <li...@mksolutions.info> wrote: > > > > > > > >> Am 26.01.2021 um 15:08 schrieb David Kerr <da...@kerr.net>: > >> > >> As some of you may be aware, Comcast / Xfinity are starting to impose > >> monthly data caps on internet usage. Where I live it is 1.2TB a > >> month. So I just received the dreaded "You have used 75% of your > >> allowance" email. Fortunately only 5 days from the end of the month, > >> but looking back there are months that I have exceeded the cap. > >> > >> Can I do anything in Astlinux to meter usage myself? I would want to > >> monitor raw traffic in and out on eth0, the totals would need to > >> survive reboot, I would want to reset on the first of each month and > >> maintain a history. For extra credit... be able to identify high > >> users on my internal network(s). > >> > >> Any ideas? Have any other gateways (like OpenWRT) tackled this? > >> > >> Thanks > >> David > > > > Hi David, > > > > most applications that I know use RRDtool (a Round-Robin-database to store > > data/measurements) as its basis, like Munin, Cacti, MRTG etc. > > > > https://en.wikipedia.org/wiki/RRDtool > > > > It is also available in BR2. > > Years ago I had hacked myself a Munin node (client) for AstLinux, so data > > could fetched from a Munin server on Debian in my network from my AstLinux > > boxes. But it does not work anymore or I forgot about it. But it created > > nice progress graphicss for some parameters (CPU load, traffic, Asterisk > > calls, etc.). > > > > Now since we're using SSDs instead CF cards it would be nice to have such > > application. > > My 2 cts. > > > > Michael > > If we are mostly interesting in network info: > > ip -s link show dev eth0 > --or-- > ifconfig eth0 > > provides network interface usage. On shutdown and/or regular cron this info > would need to be saved to persistent storage along with the sample date. > > Though corner cases when the eth0 link goes down or a PPPoE ppp0 interface > comes and goes can make pure interface monitoring less accurate. > > An AIF plugin could be added to do something similar, which would be required > if forwarded LAN -> WAN traffic was to be recorded. Though the matching WAN > -> LAN traffic might be a little tricky. > > Then the little matter of what the ISP says the data is vs. your actual data. > > Lonnie > > > > > > > > > > > > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to > pay...@krisk.org. _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org.
