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I can track http traffic usage by parsing apache logs but is there any way to track ssh traffic usage per uses basis?

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May I ask what is the benefit of this? Usually, SSH traffic is not huge unless you are copying large files over SSH. –  Khaled May 31 '12 at 12:52
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@Khaled: Things like nervously often run rsync over ssh can quickly consume lots of bandwidth. –  Janne Pikkarainen May 31 '12 at 13:02

2 Answers 2

up vote 1 down vote accepted

I would use iptables owner module (perhaps together with other quota/reporting modules).

iptables -A OUTPUT -p tcp --dport 22 -m owner --uid someuser -j ACCEPT

And then see the output from iptables -vL to see the amount of packets/bytes passed through this rule, or parse the iptables statistics with some analyzer.

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Thank you. I'll try this. –  ayshe May 31 '12 at 13:10

None, there is no way to track SSH bandwidth usage per user, not on the server, and not externally.

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thank you for your answer @Sirch. how control panels like cpanel measure the ssh traffic usage? –  ayshe May 31 '12 at 12:59
    
Do what Janne said, pipe it through something else that monitors the process by port and owner. –  Sirch May 31 '12 at 13:07

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