TopMark

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Sep 7, 2012
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I have a wireless modem with multiple computers connected to it. I was wondering if it is possible for a virus/worm that one computer gets infected with to travel through the modem to other computers connected to the modem? What would the best ways to prevent this from happening be?
 
Solution
Don't allow them access to the other computers on the network, and if you actually find a virus on them consider shutting off their Internet access for some pre-defined period, say a week.

Also, I would alter the hosts file on those machines to prevent access to "bad" places. To do that you use the notepad in administrator mode on that machine (right click notepad, run as admin) and then go to the hosts file windows/system32/drivers/etc then select all file types and open the file named hosts. Paste the huge list of bad places into the file from here: http://winhelp2002.mvps.org/hosts.txt Just copy the entire text file and copy it into your hosts file. Then save and all those sites will be blocked.

The main site gives you a bit...

TopMark

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How would I restrict those machines?
 

RealBeast

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Don't allow them access to the other computers on the network, and if you actually find a virus on them consider shutting off their Internet access for some pre-defined period, say a week.

Also, I would alter the hosts file on those machines to prevent access to "bad" places. To do that you use the notepad in administrator mode on that machine (right click notepad, run as admin) and then go to the hosts file windows/system32/drivers/etc then select all file types and open the file named hosts. Paste the huge list of bad places into the file from here: http://winhelp2002.mvps.org/hosts.txt Just copy the entire text file and copy it into your hosts file. Then save and all those sites will be blocked.

The main site gives you a bit more detail on what hosts file blocking does: http://winhelp2002.mvps.org/hosts.htm
 
Solution

bitmantra

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Oct 30, 2012
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Purchase and install an antivirus program such as Kaspersky Antivirus, Norton Antivirus or McAffe Antivirus on every computer attached to the network. This is the only way to protect them all against infection. Some companies provide discounts or bulk licenses for multiple computers.