It’s pretty common knowledge these days that you need to run some kind of antivirus protection on your computer. But it’s not commonly known that the computers that make up the internet are also at risk. What’s being done to protect them?
Computer viruses attack servers - web, file, ftp and e-mail, along with routers and other network gear - along with individual PC’s.
Servers are usually substantially the same as PC’s only with more memory, disk space and processors. Web servers house web pages and programs for Internet users, e-mail servers store, send and receive e-mail, and file and ftp servers make possible storage and distribution of all manner of files for other systems. Routers are simply specialized computers, with proprietary operating systems, for routing network traffic.
Most operate much like an individual’s system and are subject to the same kinds of attacks. They can therefore be protected by many of the same means - regular use of reliable antivirus software and being firewall guarded to shut down vulnerable entry points on the Internet.
What Options Do They Have?
Because these servers provide internet services to many users (sometimes thousands at a time) they are a popular target for the people who create viruses. As an end user, you can help to keep these systems virus-free by ensuring that your computer stays that way. And the system administrators on those systems can help by limiting the type of software that gets installed on them.
Users can help administrators and themselves by being more careful in browser selection and configuration. Most could profit from better self-education in how to minimize the ‘target area’ for hackers by changing browser settings. Users and computer professionals have made strides in voicing concern over security vulnerabilities in Internet Explorer. Adopting other browsers in greater numbers will help to get the message across.
Avoid booting from or loading software from CD’s, DVD’s or other disks that haven’t been scanned for viruses, if you’re not sure of the source. If a single file on one of those disks contains a virus, it can spread like wildfire.
Finally, if you use FTP for transferring files, you need to consider switching to a more secure alternative. FTP sends all passwords unencrypted so if someone is able to intercept your internet connection, they can easily get your password.
Users need to take responsibility for making sure a network is secure - not just the system administrators. System admins have many tasks on their plate and they’re not always able to respond to security risks as quickly as they should.
Posted under Internet
This post was written by Paul Wilcox on June 21, 2008
