SECURITY PENETRATION TESTING Are Your Computer Secure Enough Now ?

Nmap to the Rescue

Nmap OSFS can be a useful tool for an administrator in more than a few ways. In addition to proactive usefulness, the information yielded by a well-planned and executed Nmap OS and version scan can aide an administrator in times of crisis.

For example, assume you have a computer on your LAN that's been infected with a trojan-carrying virus that in turn, has spawned an e-mail server. A fairly simple Nmap OS and version scan can tell you the computer, its related IP and MAC address information, the type of services it has running and their related ports. This can save a battleweary administrator a midnight "suspicious system search" in the event of an outbreak such as this. One common problem that exacerbates this example is when the owner of that suspicious computer is on vacation during the outbreak or otherwise unavailable. This makes it even more diffi cult to locate the afflicted computer. System administrators have long relied on various ways of performing this type of task using widely regarded commercial appliances and lots of manpower. However, you can also become intimately familiar with your environments and utilize the full potential of powerful open source applications such as Nmap. Ultimately, this philosophy could save your organization money and make you a very valuable asset.

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SecurityOwned is My Personal Documentation about Computer Security