Howto check ddos attack on a IPtable firwwall

[z_haseeb]

I have linux firewall configured. I want to check the stress tecting on this firewall. is there any way to launch attack of DDOS or other attack which try to make the firewall busy ?

[JosePF]

Hello,
yes, there is a powerfull command line to create packets to test security and also for this purpose, but i think that is better that you see this if it is a apache question:
Security Tips - Apache HTTP Server
or secutity section of service that you want to check and/or generate a log in iptables:
i.e:
iptables -I INPUT -p tcp --dport 80 -i eth0 -m state --state NEW -m recent --set
iptables -I INPUT -p tcp --dport 80 -i eth0 -m state --state NEW -m recent --update --seconds 60 --hitcount 4 -j DROP --log-prefix ‘** HACKERS **’
Then you can see log with:
dmesg | grep HACKERS.

I dont gonna show a dangerous utility in a forum...

Regards!

[vishesh]

I think fail2ban is also a good tool to hable DDOS attack. search google