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Outgoing getting hammered

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crazyfruitbat



Joined: 12 Feb 2011
Posts: 55

Posted: Mon Nov 28, 2011 3:35 am    Post subject: Outgoing getting hammered  

Hi guys, Just had a warning from Linode that my outgoing for the month had exceeded 80% traffic allowance.

For me, this is very unlikely as I'm only running a small forum and a a small podcast (podcast should be equating to around a 12gb MAX a month normally).

So far for november my box (running ubuntu 10.04) has shifted 166GB outgoing and I have no idea where the hell that is coming from.

Does anyone have any suggestions to finding out what is causing this?
The only thing I have done recently is to add some firewall rules to iptables.

Cheers
C
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obs



Joined: 07 Mar 2010
Posts: 1403
Location: Earth

Posted: Mon Nov 28, 2011 4:59 am    Post subject:  

Check you webserver and whatever you're using to serve your podcast logs to see if there's a lot of unusual traffic i.e. lots of requests coming in all at once.

You can also install ntop which will monitor traffic and let you know where it's going.
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zunzun



Joined: 18 Feb 2005
Posts: 445
Location: Birmingham, Alabama USA

Posted: Mon Nov 28, 2011 6:14 am    Post subject:  

I use iftop, filtering gmail and a few ports:

iftop -B -P -f 'not port ntp and not port domain and not port 443 and not host iad04s01-in-f19.1e100.net and not host iad04s01-in-f17.1e100.net

James
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