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What Windows version you have? In Windows 7, you can do it with User Account Control Settings: Go to Start Button, Control Panel (icon view), Action Center, then click Change User Account Control settings on the left side. You have more information here: http://windows.microsoft.com/en-us/windows/what-are-user-account-control-settings#1TC=windows-7


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When I run a NMAP scan against its public IP address I get different results depending on whether the computer running the scan is inside or outside the LAN. Yes. This kind of difference between ports accessible via the WAN versus the LAN is 100% expected and normal firewall behavior. The main purpose of any firewall is to manage the ports ...


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TCPBlock will achieve this for free. Just add Chrome etc to the list of permitted applications and tick the "white list" box. Then everything else is blocked. You need to activate and deactivate the software manually. (Answer taken from http://apple.stackexchange.com/questions/135708/restrict-osx-applications-from-using-the-network)


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It seems that kerberos-sec on port 88 is an authentication method connected to AFP (Apple Filing Protocol) or SMB (Samba) file sharing. If you wish to disable it, you can as per the instructions on this site. This should work for Mac OS X 10.6.8 and below: sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.kdcmond.plist For Mac OS X 10.7 ...


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The IP address is not the only thing that the remote server sees. It also sees a port. The port is a 16-bit integer. Think of a computer as an apartment building. The IP is like the street address. The port identifies which apartment. Thus, a browser, a mail client, and so on, all run on the one IP belonging to the computer but each is given, by the ...



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