These days, most computer users realize they need to be using antivirus software. The trouble is, there is a lot of equipment providing services to these users on the internet. What is being done to protect them from virus infections?

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 else can be done?

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.

You should also avoid booting from CD’s, DVD’s or USB memory sticks that haven’t been scanned for viruses. If one of the files that was saved on the disk was infected, booting with the disk can cause the virus to spread even faster.

If you use FTP, you should look into switching to a more secure system for file transfers. FTP passwords are sent “in the clear” - there is no encryption on them at all. So when you log into an FTP server, if someone is monitoring your internet traffic, they can easily get your password.

It’s up to all of us to make sure these systems remain secure - not just the system administrators. They have a lot of work on their plate and aren’t always as quick to respond to security issues as they would like.