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QuestionDissable security message "" A program is trying to access e-mail addresses" while sending email Pin
Amanjot5-Feb-09 8:07
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AnswerRe: Dissable security message "" A program is trying to access e-mail addresses" while sending email Pin
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mentorWendelius5-Feb-09 8:16 
AnswerRe: Dissable security message "" A program is trying to access e-mail addresses" while sending email Pin
Bharat Jain5-Feb-09 18:36
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QuestionBuild a firewall using VB.net and then open traffic after web-based sign-in Pin
GDMFSOB5-Feb-09 7:08
GDMFSOB5-Feb-09 7:08 
AnswerRe: Build a firewall using VB.net and then open traffic after web-based sign-in Pin
EliottA5-Feb-09 7:20
EliottA5-Feb-09 7:20 
AnswerRe: Build a firewall using VB.net and then open traffic after web-based sign-in Pin
Dave Kreskowiak5-Feb-09 9:16
mveDave Kreskowiak5-Feb-09 9:16 
What you're describing is a proxy server, not a firewall.

There are various proxy protocols you have to implement in your server, plus a rather deep knowledge of TCP/IP and Sockets would be required to pull this off. Forget the Internet Connection SHaring and DHCP Server stuff. They have nothing to do with the ultimate goal of the project (as you described it anyway). Leave the DHCP stuff to an off-the-shelf implementation. One even comes with Windows Server.

The .NET classes are pretty much all going to be under System.Net. What you use depends on the design of your server. Warning: This project is going to require advanced skills in networking and socket communications.


GDMFSOB wrote:
I think somekind of a dns interseptor would work but dont know how to handle traffic routing in .net.


Nope. This requires that you configure any software that's going to use the outside network to go through your proxy server. There is no "intercepting" anything to get this to work. Clients can very easily try to connect to outside networks and systems without using DNS at all, so intercepting DNS requests does you no good.


A guide to posting questions on CodeProject[^]



Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
     2006, 2007, 2008




QuestionListbox problem Pin
jaakinye5-Feb-09 6:21
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AnswerRe: Listbox problem Pin
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AnswerRe: Listbox problem Pin
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GeneralRe: Listbox problem Pin
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QuestionVBScript to get all users (local and domain) Pin
mixologee5-Feb-09 3:27
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Dave Kreskowiak6-Feb-09 3:36
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Questionaccess MDB database help Pin
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Questionretrive field value into combobox Pin
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Question[Message Deleted] Pin
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AnswerRe: Grid View Control Pin
Henry Minute5-Feb-09 9:16
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QuestionWhere to put try / catch blocks when dealing with classes Pin
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AnswerRe: Where to put try / catch blocks when dealing with classes Pin
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GeneralRe: Where to put try / catch blocks when dealing with classes Pin
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