According to a survey of corporate IT professionals by Ponemon Institute, an independent researcher, 67 percent of respondents answered that their organizations were vulnerable to attack due to inadequate firewall and port management security. A major component of server security, firewalls are systems that control access to a network by opening and closing ports to specified users — something of a traffic cop for servers and computers — and their management presents a number of difficulties that explain this sense of vulnerability.
Firewalls are very valuable tools for keeping certain users or types of users out of a network, but they can also keep authorized users from accessing a network due to errors or changes in an access location. An employee with access to a company server, for instance, could have trouble getting past a firewall if using a home computer or a mobile device. On a smaller scale, most personal computer users have experienced firewall interference when authorized applications try to perform new tasks or access new ports.
While closed ports present an access problem, open ports present a vulnerability for the network. Hackers can use these open ports to access a network — often assuming the identity of an administrative account to use an open port. An open port can be used both to upload malicious applications such as viruses and Trojan horses or to download confidential or sensitive information from a network. Finding the balance between access and protecting against these attacks is perhaps the fundamental challenge of firewall management.
Scale ability and Cost
In the delicate balance between access and protection, IT professionals are often forced to manually input exceptions to a firewall policy. According to the Ponemon Institute survey, 85 percent of respondents described this process as difficult and sometimes frustrating. Beyond professional frustrations, these manual exceptions also make it more difficult to scale firewalls when administrators have to input exceptions to access rules and increase the personnel and financial resources dedicated to firewall management.
The need to manually input exceptions to a firewall or input new rules to accommodate new threats or users can be a time-consuming process, even for highly qualified IT professionals. While firewalls are highly customizable and policies can always be rewritten, the time necessary to change access conditions often means that a firewall cannot be changed in time to respond to a new threat or grant immediate access to an authorized user trying to reach the network from a new location.
As the pressure to pass standardized tests increases, even preschools are spending more time on strictly academic subjects. Instead of a general introduction to the alphabet, many preschools include a ...Read More
Just because your little learner's lead teacher makes it look easy, doesn't mean that acting as an early childhood educator is simple. Teaching preschool age children requires highly specialized training ...Read More
The best time to send your child off to school depends largely on whom you ask. Proponents of starting kindergarten as early as possible believe it gives a child a ...Read More
Your little one may face a culture shock in daycare if your Christian values prevent him from doing things that are common in many daycare centers. That does not mean ...Read More
In the world of foster care and adoption, when it comes to siblings, keeping them together is always the first choice. Even though in your mind, you see yourselves all ...Read More
Most parents adore that toothless gummy grin, but whether you like it or not, teeth begin to surface as your baby turns around 6 months old and his first milk ...Read More
You can use the camera on your iPod Touch to take VGA-quality photos and store them on the device, but you can also transfer high-quality photos from your computer to ...Read More
Because it's not enough that your preschooler or kindergartner can build an amazing sand castle and (almost) tie her own shoes -- now you have to worry about her math ...Read More
While an early educational program might not ensure that your preschooler is Harvard bound, it can help her to learn better. Whether you are looking to build on a specific ...Read More
In the beginning of the PC revolution, when monitors where often 12 to 14 inches in size, using your keyboard directly in front of the screen was not an option; ...Read More
Instilling self-control by establishing and sticking with rules is the name of the game when it comes to reigning in misbehaving toddlers and preschoolers. Self-control -- something many adults could ...Read More
As the mom of a toddler or preschooler, you are probably well acquainted with the magic of dipping. There's just something about dunking her meal that can get even the ...Read More
Potty training is a normal part of every child's physical and emotional development, but not every child develops at the same pace. If your child is resistant to potty training ...Read More
The grief that accompanies parental death can trigger psychological side effects for your child. If these psychological effects are long term or if they interfere with your child’s emotional or ...Read More
According to the Encyclopedia on Early Childhood Development, 80 percent of children living in the United States have at least one sibling. Many children have more than one sibling, and ...Read More
There are a number of psychological tests used to measure intellectual ability in children, but there are a limited number that are available for preschool-aged children. Although measurement of skills ...Read More
Toddlers are curious by nature. Young children in the toddler stage are discovering their independence and are interested in exploring the world around them. However, their exploration can lead to ...Read More
You don't have to break the bank to throw your little one a top-notch bash. Free or low-cost places such as public parks are creative alternatives to the more pricey ...Read More
If you're looking for a fun activity for you and your preschooler, (and an unforgettable party treat) these puppy cupcakes are sure to please. If you want to get creative ...Read More
Sensory play activities are enjoyable and educational for your toddler or preschooler. You're encouraged to join in the fun but expect to get your hands messy! Any pastime that stimulates ...Read More