The easiest way to defend against network-based worms coming from the Internet is to remove any links to the outside world. This would leave only the internal network vulnerable to attacks that originated inside. Obviously, this is not a viable solution for many, because the Internet’s communications links are important for business, research, and even our personal lives. This means that this avenue cannot be explored, though it has been used as a temporary measure by many network administrators during especially heavy onslaughts of worm attacks.
The second major line of defense is to move all exposed services from well-known ports to uncommonly used ports. This would mean, for example, running a Web server on a port that is different than the normal port 80/TCP port used. The major drawback to this approach is that the outside world, which needs to communicate with your site, will be unable to do so without assistance on your part. With that assistance, it is possible that worms could similarly use that information to exploit the vulnerabilities that still may reside on your servers but on different ports.
Read the rest of this entry »
The spread of worms to the desktop space parallels the rise in popularity of desktop systems and their increasing presence on the network. Although typically the domain of electronic-mail malicious software, or malware, several worms have used desktop systems to spread from host to host.
Workstations and desktops are usually maintained by their owners, meaning they receive less professional attention than servers do. UNIX workstations are simply too numerous for administrators to maintain as much as needed to stay on top of security issues. Desktops, typically Windows and Macintosh systems, are also often poorly maintained. In each case, usability and reliability are the overriding factors, not security.
Read the rest of this entry »
As I promised in last article, today I’d like to continue our last discussion about worms traffic patterns, lets find out Disruption in Internet backbone activities as below.
Not entirely unexpected, as worms move, they are increasingly saturating the network on which they reside. Worms are typically indiscriminate in their use of networks and work to aggressively scan and attack hosts. This saturation can have consequences on the network infrastructure and use. As described below, Internet routing updates, network use, and intranet servers are all affected by worms during their life cycles.
Read the rest of this entry »
Managing your money or financial funds might not be easy, although you might have read it in the books or tv shows that you should schedule your expenditures and your income, but in the real world you might wonder how does you start those schedule.
There are easy solutions for that, if your problem is in scheduling or don’t know how to start it, then you could use personal finance software. The software itself are vary, some you could download it for free.
Read the rest of this entry »
Since computer technology were introduced, the other related supportive tools are also improving. One of it is Network, with network we could travel the world less then a second, there are no limit to far and no obstacle to hard.
Network itself rely on connection quality, which the first and still being used until now is cable. Cable itself also being used for common electric peripherals.
Read the rest of this entry »
In computer world, performance is something needed in order to get the job done more quickly, while precaution is something we need to do to avoid unwanted files.
Scanning an entire file for viruses is slow, and resulting on the computer performance itself. So how to solve it, because we do know scanning is also important things to do. It is referred to using the derogative term grunt scanning. There are four general approaches to improving scanner performance:
Read the rest of this entry »
In previous articles we have discuss about browser battle, thus the battle are effecting on web design. Those browser development are potentially effecting on web design in both positive and negative side.
The browser war results in newer, better features that you can implement on your Web sites. The blistering pace of development leads to regular updates and bug fixes in browsers, as well as timely changes in the user interface, brought about by consumer comments. If you’ve spent much time surfing the Web, you’ve probably seen excellent uses for advanced HTML capabilities, such as tables, frames, and forms. The features allow users to view information in columns or cells, navigate sites using toolbars, and give and receive feedback.
Read the rest of this entry »