A VPN, or Virtual Private Network, is one of the best ways to keep information about your internet usage private from hackers, your ISP, and the government. However, if it’s not setup properly or if ...

When we use a VPN, our original IP is hidden, and the computer uses the IP address provided by the VPN. It makes sure that when you are visiting or accessing geo-blocked websites, you are not ...

I've got a function that's holding a sockaddr_in*. How do I test whether the represented address is on the local machine as opposed to another machine on the LAN? FWIW, the address I've got is the ...

I've recently written about using bash arrays and bash regular expressions, so here's a more useful example of using them to test IP addresses for validity. To belabor the obvious: IP addresses are 32 ...