hello !
i want to restrict user to not visit www.abc.com site , from my pc , how can i do it in c# , user will use chrome , firfox , IE etc ,

Regards

I haven't done anything like this myself but I think you will need a service running in the background that checks the current open TCP connections against your blacklist and shuts them down if they feature on it. Of course TCP connections appear as IP addresses so your blacklist will either need to consist of IP addresses or you will need to match a domain name to an IP.

thanks hericles . i have to come to know that i can just block any website byu just entering its name in C:\windows\system32\drivers\etc\hosts . but prob is that i want to open this file as administrator so that i can make changes init ,is there any way to open any text file with administrator right and show its all data in my textbox. using vb.net or c# ?

Regards

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