Internet security advice
Every bit of Internet security advice you’ve ever read warns you to clamp down on incoming access to the computers on your home or office network. Turn on a firewall. Enable anti-virus software that scans every inbound message or downloaded file. Use a broadband gateway that hides your computers from the Internet.
That’s good advice, but only for unsolicited inbound access. You want to repel scoundrels trying to probe your network or your computers.
But what if you need access to computers when you’re not physically on the same network? Many remote-access tools fail because of how Internet service providers limit remote access for a combination of security and technical reasons.