I have networked my home computers but am unable to connect between
any 2 while ZoneAlarm is operating. Is it possible to use the network
while zonealarm is running?
Here's a suggestion... use a NAT device first & foremost. You may already
be using one, but NAT will block external threats (unless an internal source
instantiates it) AND give you the ability to have multiple computers on one
connection.
Now, using ZA is an okay idea... it will help prevent trojans and spyware
from communicating from your system to an external system. Of course, that
is dependent on you recognizing that spyware.exe is unwanted when it
attempts to make that first connection. I personally keep the client
firewall off because the ones I have used tend to hurt performance. The NAT
device and good AV software typically work (although it leaves a slight hole
for new trojans).
If you still use ZA, you will want to add the IP address of other machines
you trust in a "trusted zone". Then you can tell ZA to have high security
for everyone else, and low security for your trusted zone. At least you
will have the functionality you want.