OT: Re: VIRUS


John,

Thank you so much.  How lucky are we that we get not only expert info 
on irises here, but on the mysteries of computers as well.

Patricia Brooks


--- In iris-talk@y..., "John Bruce" <jbruce1@c...> wrote:
> Rosalie, Patricia --
> 
> A very simplified explanation.
> 
> Any virus protection you install on your own computer will only 
scan files on or incoming to your computer.
> The server at your isp either will only scan for viruses that can 
be a danger to their server. Any 
> scanning of files that pose no threat to their server that are to a 
customer destination is icing on the cake. 
> A "client" is the program resident on your computer that recieves 
email, provides a chat conduit, etc. 
> "pop3" stands for 'point of presence type 3', the nearly universal 
protocol for email transmission across
> the internet. 
> 
> It works this way: Person A, using their email client, (Outlook 
express for instance) sends a message to 
> person B. It first travels to the server of their internet provider 
(AOL for instance). From there it takes a route 
> directly to the server of person B's internet provider. (or it may 
go thru 25 other servers to get there). Then 
> person B downloads the email thru the client on their computer 
(Netscape Mail, eudora, AOL, etc.)
> 
> Person A (sender) needs a virus scanner to ensure there isn't a 
virus in their email transmission. All 
> the internet service providers' servers it passes thru (hopefully) 
ensure there is nothing in it which
> will infect their servers (protecting service to thousands  of 
their customers). Person B (reciever) needs a virus scanner to make 
sure their computer and data are safe from anything that comes in. 
> 
> The problem lies with the fact that viruses are tilored to look 
like good things that people want to send and recieve.
> Total safety would make it nearly impossible for anyone to use the 
net. It is sort of like making the wilds of Africa
> safe for all....take out the wild animals, dangerous plants, etc. 
But then there is nothing left to recommend visiting....
> As far as virus protection, nothing is foolproof. As soon as you 
get vaccinatd for one disease, a new one comes 
> along. And a few people have to catch it before the new vaccine 
arrives. 
> 
> John 
> 
> 
> [Non-text portions of this message have been removed]


 

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