[vox-tech] Measure network usage?

[MB]

I like ntop ( www.ntop.org ).  It has a nice SSL server w/interface and 
graphs to view what is going on, and it uses nmap, lsof, and several 
other network utilities to find out about the machines on the network ( 
and the remote connections )

Mark

Shawn P. Neugebauer wrote:

>On Saturday 28 June 2003 01:50 am, Samuel Merritt wrote:
>  
>
>>Shawn P. Neugebauer said:
>>    
>>
>>>I have a few Linux boxes that have uptimes of days to months.  I need
>>>to try to estimate bandwidth usage for a long-ish period of time (e.g.,
>>>days or weeks) in order to characterize how much bandwidth I use
>>>(to decide on level-of-service issues for a new ISP---I have to move :(
>>>) .   Is there a way to tell the amount (in bytes) of traffic sent and
>>>received by a running box?  Is there a simple *non-intrusive* tool that
>>>might "add a little value" to whatever is built-in?  I'm aware of MRTG,
>>>and Orca, but these are overkill for this type of problem.
>>>      
>>>
>>Take a look at the output of /sbin/ifconfig. It should have a line like
>>RX bytes:2328595615 (2.1 GiB)  TX bytes:3104087047 (2.8 GiB)
>>or so. Have a script dump the byte counts to a text file once an hour, and
>>then you can do a little simple analysis with a hand-rolled tool.
>>    
>>
>
>That was the first place I checked, but <slapping hand on forehead>
>I saw RX/TX packets and missed the byte count.  I just man'd ifconfig,
>noticed it used /proc/net/dev, saw byte counts in *there* and started
>wondering why they didn't show up with ifconfig...
>
>Now, if I can extract some info from my router, I might have some idea how
>much data exits and arrives at my network...
>
>Thanks.
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>  
>