IP Sentinel is a tool that prevents unauthorized usage of IP addresses within an ethernet broadcast domain by answering ARP requests. After receiving faked replies, requesting parties store the MAC in their ARP tables and will send future packets to this invalid MAC, rendering the IP unreachable. Features chroot non-root operation.
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Mod_security is an Apache module whose purpose is to protect vulnerable applications and reject human or automated attacks. In addition to filtering requests, it also can create Web application audit logs. Understands regular expressions and POST payloads and runs on both branches of Apache.
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Packet Storm exploits added in the year 2003.
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Firewall Builder consists of object-oriented GUI and set of policy compilers for various firewall platforms. In Firewall Builder, firewall policy is a set of rules, each rule consists of abstract objects which represent real network objects and services (hosts, routers, firewalls, networks, protocols). Firewall Builder helps user maintain database of objects and allows policy editing using simple drag-and-drop operations. Firewall Builder can be used to manage firewalls built on variety of platforms including, but not limited to, Linux running iptables and FreeBSD or Solaris running ipfilter.
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Arping is an arp level ping utility which broadcasts a who-has ARP packet on the network and prints answers. Very useful when you are trying to pick an unused IP for a net that you don't yet have routing to, or to ping an ethernet address directly. Tested on Linux, {Free,Net,Open}BSD, MacOS X, and Solaris.
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