Having a Wi-Fi at home or work is great. There are some security risks, however, such as intrusions or some occasional traffic issues that could be difficult to detect or diagnose. There are professional tools that can help us with that, but they cost a lot of money and are not user-friendly. What to do, then? Well, installing Fing - Network Tools can help you with that.
Fing is a wireless network discovery and audit tool which can be used to view the devices connected to your network. It provides services such as Ping, Traceroute and WoL (Wake on LAN), among many others. It has everything you need to analyze connection problems and find any computer connected to your network that should not be there.
With Fing, you can perform a trace route to any computer connected to your Wi-Fi network, test any TCP connection or even awake any computer connected to our wireless network. It can also recognize almost every service out there, including the most common ones like Web Service (HTTP), File Transfer Service (FTP) and Domain Name Service (DNS). Using the Scan TCP ports option, it can detect all TCP services running on a target host or an entire network. You may also define your own service through a very simple configuration step.
The app is divided into three sections which include a series of tools that allow you to perform your task very efficiently, which makes it the most comprehensive app of this kind.
The first section, Network Discovery, consists of four tools that allow Fing - Network Tools to discover nearby networks. These tools are:
- My Networks: Browse and manage any of the discovered networks. For example, if we use it in a family house allow us to explore and manage the wireless network of the house of our family, always and when you have saved that network.
- Discover Wi-Fi: use it to discover the wireless network you are currently connected to.
- Discover any IP network: allows you to discover any external IP network.
- Fingbox: It allows us to manage your Fingbox account and check its status (this requires a paid Fingbox account; however, it is not necessary for the app to run properly).
The second section, Host Tools, contains the core functions, as it consists of six tools that enable Fing to do its job.
- TCP Services Scan: scans TCP ports (services) on any computer or device connected to the Wi-Fi network.
- Ping: sends PING packets to any computer or device connected to the same Wi-Fi network we are connected to.
- Traceroute: performs a traceroute command to any computer or device connected to the same Wi-Fi network that we find ourselves connected to.
- DNS Lookup: it helps us to find what the corresponding IP address of any computer or device connected to our Wi-Fi network is, so we can detect suspicious connections.
- Wake on LAN: allows you to send the "wake up" instruction to any computer or device connected to your wireless network that is currently "asleep". For instance, if we find a computer connected to our Wi-Fi network is in a state of hibernation, Wake on LAN could get it out of that state (assuming its BIOS supports it and is set-up correctly).
- TCP Connection Tester: this test allows any TCP connection that occurs in our Wi-Fi network.
Finally, the Settings section contains six tools that will allow us to configure the app. Of those six tools, two deserve special mention:
- Privacy mode: if enabled, hides the last part of the MAC address to preserve our privacy.
- Edit TCP services: allows you to edit and manage the list of ports (services) used in TCP scanning TCP ports.
Additionally, you can use this section to configure the app to your liking and perform backups of those settings on the SD card of our device.
What Fing cannot do
Although Fing is a very complete app that performs its task effectively, it has a couple of drawbacks that affect its great performance a little bit: it does not allow UDP port scanning and the TCP port scanning generates "noise" (i.e. any packets other that ping, generate traffic to your computer and / or target device). The latter allows any potential intruder or suspicious device connected to our Wi-Fi to detect us and to -probably- evade our detection efforts, although it would take an avid intruder to do so.
All in all, Fing – Network Tools is a very comprehensive app and won’t cost you a dime unless you need a Fing Account. If you ever wanted to check your Wi-Fi network effortlessly, Fing is the app to go for. It is available for both Android (2.1 and up) and iOS devices (4.3 and up). Also, you will be happy to know that Fing has desktop versions for Windows, Linux and OSX from the developer's download page, just in case you need them.
Fing - Network Tools — Free Mobile App of the Week
Size: 757 KB
For iPhone and iPad
Size: 4.0 MB
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