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Old 01-15-2009, 05:36 AM
Ted Hilts
 
Default Security and Intrusions - Thanks

NoOp wrote:
> On 01/14/2009 08:59 PM, Ray Parrish wrote:
>
>> Chris Mohler wrote:
>>
>
>
>>> The 'etherape' program will show you a graphic real-time display of
>>> LAN usage. Also, the 'mtr' command can help determine a bottleneck
>>> outside of your LAN.
>>>
>>> I think there's a bug int he etherape package - if you run it from the
>>> menu it cannot open any interaces. You have to either run it via sudo
>>> in a terminal (sudo etherape), or edit the menu item and make the
>>> command 'gksudo etherape' instead of just 'etherape'.
>>>
>>> HTH,
>>> Chris
>>>
>>>
>>>
>> You guys rock! I'm now using etherape, and it has gone a long way
>> towards relieving my mind on what is connected to my computer. I am also
>> surprised at the number of servers one web page will use to serve up a
>> page sometimes.
>>
>>
>
> Keep in mind that etherape captures to memory, so the longer you run it
> the more memory it consumes. However, you can use tcpdump to dump the
> data to a file for a brief while, then replay the data in etherape. See:
>
> http://articles.techrepublic.com.com/5100-10878_11-5031581.html
> [Reading from files and remote networks]
>
> and
>
> http://openmaniak.com/tcpdump.php
>
> So, for example:
>
> sudo tcpdump -n -w test
>
> will write the dump file to 'test'. You can then open up etherape and
> File|Open and select the 'test' file & etherape will replay the events
> from that file.
>
> Side note: If you ssh into your kid's computer, run tcpdump (assuming
> you have an account there with sudo capability), copy the file & play it
> back for him/her in etherape and you can show them 'graphically' what
> they connected to over a period of time. Obviously more fun than just
> showing them router logs...
>
>
>
>
>
>
Thanks to all who contributed to my Security and Intrusions concerns. I
will read all the references you provided and heed the advice given.

Thanks again -- Ted
BTW: I am still getting help and advice from Preston on my concerns with
subject "Confused over CIFS". Almost done now. He has been very patient
and helpful and a big thank you goes out to him and all the others that
have provided advice on that subject.

Ted


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