IT Security - Denial of Service (DoS) Countermeasure

Denial of Service (DoS) is an activity performed by a hacker if he is very upset and cannot get inside your computer or network and all he wants to do is to bring your internet services on its knees.

Some hackers attack other "weak" computers or networks. Once they are inside those "weak" computers or networks, they can now control it. These "weak" computers or networks become "zombies" of that hacker.

Now, the hacker will use his "zombies" to send packets going to your computer or network all at the same time to bring your internet services on its knees. It's called Distributed Denial of Service (DDoS).

To prevent it to happen, do the following:

1. Install a Firewall. We suggest a "hardware-based" or a separate appliance for corporate networks. You may install a "software-based" such as BlackIce and ZOne Alarm for desktops and laptops.

2. Install an AntiVirus with the latest updates from the vendor.

3. Install eSafe and BackOfficer to counter Back Orifice.

4. Do not launch executable content found on the internet.

5. For corporate networks, hire a Penetration Test expert to identify the specific vulnerabilities of your network. MITXpress Solutions offers Pen Test Seminars and Trainings.