Summary

Recap

• Linux is gaining popularity and is fast becoming a stable industry strength OS.

• Once the IP address of a target system is known, an attacker can begin port scanning, looking for holes in the system for gaining access. Nmap being a popular tool.

• Password cracking tools are available for Linux as well.

• Sniffers as well as Packet assembly/analyzing tools for Linux provide attackers with the edge that they have dealing with other OSs.

• Attackers with root privileges can engage in session hijacking as well.

• Trojans, backdoors, worms are also prevalent in the Linux environment.

• As with any other system, a well developed integrated procedure is to be put in place to counter the threats that exist.