Safety when sharing drives permanently ?!

Posted on 2001-07-21
Last Modified: 2010-04-13

I was told by a friend that if I share my drives in my local peer to peer network in win2k, without password the drives wil be wide open on the internet to people that have nothing better to do than get on other peoples drives.
Is this true and if yes is:
1. Zonealarm enough to prevent accesses from outside
2. what sharing profile must i use to only make my PC by my laptop with a specified IP adress ?

Thanks for all comments in advance !

Question by:peter_b
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LVL 32

Accepted Solution

jhance earned 50 total points
ID: 6304566
The information is correct.  If you have your system on a publicly accessible network and take no precautions, your drive is vulnerable.  There are several alternatives:

1) Use a FIREWALL.  You can get a firewall box for very little money these days and it is a good investment.  You put all your private systems behind it and no unauthorized outside connections are permitted.

2) Password protect the shares.  Depending on how secure you need to be this could be sufficient.  Be 100% sure that you have installed all the Microsoft recommended security patches on your W2K system.  There are a number of exploits that are out there for unpatched systems and BE SURE to keep your updates current.

3) Install the NETBEUI protocol on all your local systems and unbind the Client for MS Network from the TCPIP protocol on all your systems.  The NETBEUI is unroutable.  That means that it cannot, by definition, work beyond the first router on your network.  So it's secure against all remote threats by definition.

Author Comment

ID: 6304738
thanks, could you precise how to do these modifications in win2k ?
Is Zonealarm enough as a firewall ?
LVL 12

Expert Comment

ID: 6304835
-Zone alarm will do it if you block ports 135-139 from any unknown IP addresses. Addresses not in your LAN subnet.
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Author Comment

ID: 6304865
ehh how ?
LVL 12

Expert Comment

ID: 6304885
-The internet zone settings on Low allow access to file & print from the internet (dont want that)... Medium settings do block netbios & so do high.
-Read this info.

Author Comment

ID: 6305135
ok last thing: how do i simply set up a password for the shared drives ? The all users guest etc are confusing to me.

Expert Comment

ID: 6330347
i think you can resolve it by using on your LAN a "private ip" such as 192.168.0.X,,you cannot access such Ips from the Internet..and a firewall wont be needed..not even passwords..just make an account for every person who needs to use the resources you are sharing..
hope it helps.

Expert Comment

ID: 6842588
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Expert Comment

ID: 6892540
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