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I'm using ubuntu server 10.04 and I have to enable tarpit module . I installed the followning packet :

aptitude install xtables-addons-common xtables-addons-source
module-assistant auto-install xtables-addons-source

but when i try to add a tarpit rule I get this error:

iptables: No chain/target/match by that name.

Thanks for your help .

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1 Answer

up vote 2 down vote accepted

Clean all rules:

iptables -F
iptables -X

Use these default parameters:

iptables -P INPUT    DROP
iptables -P OUTPUT   DROP
iptables -P FORWARD  ACCEPT

Then do the following:

 iptables-save > /etc/network/iptables
 iptables-restore < /etc/network/iptables

Then enter:

iptables -A INPUT -p tcp -m tcp -dport 80 -j TARPIT

Or you can set a trap for ALL ports, except for your own:

   iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
   iptables -A INPUT -p tcp -m tcp --dport 25 -j ACCEPT
   iptables -A INPUT -p tcp -m tcp -j TARPIT
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