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On 22 June 2010 15:33, James <wireless@×××××××××××.com> wrote: |
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> Hello, |
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> |
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> Conntrack-tools |
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> Look here: |
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> http://conntrack-tools.netfilter.org/testcase.html |
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> |
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> Is anyone doing this, and willing to share configs, answer questions, |
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> or point to other examples? |
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> |
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> |
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> Lots of new kernel stuff for ip tables, since I sank deeply into the |
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> abyss of minutia of IP tables. Further reading references on how to |
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> build an HA or fail-over firewall are most welcome. |
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|
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I can't add anything about conntrackd, because I have not used it, but |
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I'd recommend to use the limit module and set it to something sensible |
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(e.g. 3/minute) when logging invalid packets, if you want to avoid |
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bogging down your fw. So use something like: |
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|
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-m limit --limit 1/minute |
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|
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You could also add --limit-burst in the same fashion again to limit |
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DoS attacks, at least on the Internet facing NICs/ports. |
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-- |
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Regards, |
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Mick |
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