Wireshark FTW! One way is to run Snort on the server and use WS to analyse the output.

mike

http://mikelindner.wordpress.com



On 19/11/12 15:36, DanyJ wrote:
Hello LUVers

I have been experiencing an increase of about 5x factor in my outgoing
network traffic for a while  -at least last  week - I cannot explain
that change in activity,configuration etc...   (It does peak to much
higher level at a specific time, but I have worked out why that was so..
a overgrown backup file that was being transfered daily)

So I need to find out what that traffic is.

What is a recommended log analysers to help me quickly here?  Want it to
tell me how much data is being transfered by which protocol

Or any recommended procedure to identify that traffic?

Any ideas please?

Its a Ubuntu 10.04 server,  running  Apache, Postfix and related stuff
(Spamassassin, Amavisd etc)  (I had varnish on it, but I turned it off)

Cheers
Daniel.
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