kony said:
There is no distinction to being on broadband vs. dialup excpet percentage
of time system is online, yet these days systems are scanned often enough
that on dialup an insecurity would be found anyway.
I'm not arguing this part. The connections are the same as far as the
software goes. Speed doesn't make a difference in how likely you are to be
attacked/infected. The difference is that with broadband the typical usage
for the connection changes. The user actually uses the connection
differently and this is where it becomes more likely to get a bad file or a
port attack.
The same typical entry points, email and sometimes browser (or warez but
that goes without saying) are same risk with or without broadband. If you
mean open ports, the first line of defense is usually enough, any
inexpensive router.
Routers that will deal with dialup are rare. SMC had (still has) one model
that would dial out if the WAN connection was down, but I don't know what
kind of functionality it offered through the dialup port. You also had to
have an external serial modem for this, which most folks don't have.
Software firewalls like Zonealarm (ick) will do the job, but they take
overhead and when they break will they break open or closed? Software
firewalls still have to get the data into the PC before it can processes it
and I don't trust that process either.
Yet this is a very old system that is being questioned for upgrade due to
sluggishness even before considering adding MORE software, overhead.
When a system is too slow it might be better to just have antivirus
software installed but not actively scanning, and make regular backups of
anything important. Tpically a backup of OS and apps made bimonthly and
documents in a single folder or partition on a more regular basis as
warranted.
If realtime scanning affects performance noticably, then I'd agree. I know
that human nature will cause the backups to lag and the scanning to be done
less frequently than it should be, etc. so I prefer automatic processes. The
only manual process should be removing your backups from the site on a
regular basis... but at this point I don't think Grandpa is going to want to
do this (or need to). Just make him aware that if anything on the PC is
important, it should be copied elsewhere just in case.