documents

[prashantrecon]

Hi

I need to know regarding some concept such as.

How to find if there is any dhcp spoofing, To find which are the ports opened on firewall. etc.

Please provide some documents regarding security.

[ajay chauhan]

Checkout this-http://www.nanog.org/meetings/nanog42/presentations/Bhaiji_Layer_2_Attacks.pdf

[prashantrecon]

Thanks Ajay,

It will better if you can send me  doc regarding firewall

[ajay chauhan]

This is considered as L2 attack nothing to do with Firewall.

[prashantrecon]

That is any tool available to check check ports opened on firewall

[ajay chauhan]

You can check free port scanner put your ip range and that will give you results.