It's a lot of reverse engineering and collaboration that lets these tools "identify" gear as the manufacturers generally don't want advertise "I'm a Mac" now that security and cracking are legitimate threats on home networks since routers and software have so many holes in them and it's hard for people to choose strong unique passwords and secure their "smart" devices. How does fing or nmap fingerprint a machine? Usually a database of known claimed hardware manufacturers, looking at open ports and even issuing handshakes to the machine in question to pick apart minute differences in timing and implementation of TCP/IP transactions. When this is done, perhaps go back and look at stealth or carving holes in the firewall to allow incoming connections to system / known / signed apps, but if you want the maximum security - changing the factory delivered MAC address and enabling stealth firewall should help secure the hardware details from most scanners. Change your ethernet fingerprint (you have to change all the network adapters / ethernet wired and wireless) - How do I properly change the MAC address of my MacBook Pro?.Enable stealth mode if Fing still knows who you are.Power down your router and Mac so that these things cause a new IP address to be issued between scans. To prevent detection, try these one by one. The only complaint I can find about Fing is the lack of general networking tools like ping and traceroute, and the app hasn’t been updated for the larger screen iPhone 5 yet, otherwise it’s rock solid and well worth downloading.The two things you can control on the hardware MAC ethernet address and the macOS Catalina firewall. Combine them all and you’ll have many of your networking utility needs covered, whether you’re an advanced user or just a networking newbie. You can even tweak settings in Fing to add additional services that aren’t listed, so if you have something specific with a unique port running on a specific device or network, it’ll know to look for that as well.įing is a great addition to any users networking toolkit, it’s simple to use yet powerful, and is an excellent iOS based utility to use alongside Mac utilities like the stellar connecting monitoring app Private Eye, the OS X Wi-Fi optimizer feature, and the built-in Wi-Fi Diagnostics tool stumbler. ![]() Tapping onto any device reveals additional networking information:įrom there you can scan for active services and open ports on individual network devices: Instead with Fing you can quickly see all of that for connected devices, saving you a lot of time, and you can even email detailed information so you don’t even have to gather it all together yourself. The primary Fing display shows the results of a network scan, displaying devices, their share names, IP’s, and MAC addresses:įing makes an excellent tool to help setup networks and troubleshoot devices, and anyone who’s had to dig around in the System Preferences to find Mac IP and MAC addresses on multiple machines, or in Network Settings on a bunch of iPhone, iPad, or Apple TV’s to find that same type of important network information knows it’s kind of a pain to manually retrieve all that information from different sources.
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