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Is there a way to monitor realtime IP traffic coming into my server and seeing how much bandwith and RAM is being used?

Every once in a while it seems like I get a DOS type of attack where my website becomes unresponsive, and I can't do anthing until I request a hard re-boot from my hosting company. I would like to be able to see which IP addresses are currently listed on my server at the time the server becomes unresponsive due to exhausted RAM usage this way I can block these IPs from accessing my website again in the future.

Thank you!

olimits7
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1 Answers1

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There are a lot of tools that you can use:

  1. Command line tools: iptraf, iftop, jnettop

  2. Web interface tools Ntop(It runs as a Daemon and you can see a lot of graphs and summaries about all traffic in your server)

  3. The old Nagios (Good and Robust but you may need some time to familiarize yourself with)

You can find here a good article on best monitoring tools in the Unix/Linux world : Linux performance monitoring tools.

TOC
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