Network recon and troubleshooting 101 PDF

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network recon and troubleshooting...

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Hailey Howell Professor Abdullah CST-111 August 1, 2021 Network Recon and Troubleshooting 101 The Fing and Nmap applications are informational tools that can be used by anyone with a smart mobile device or computer. These two applications can be download for free and offer a number features it can do including but not limited to; discovering connected devices, run internet speed tests, troubleshoot network issues, and open ports to a network. Fing has a tab that will scan the network for all the devices connected and can give detailed info about the models, brands, operating system, versions, and IP addresses of any device you select after running the scan. Other unique feature this application can do is Ping, this tool will measure how long it takes for messages to be sent towards a target host across an IP network. The two applications that are being tested allow for security and troubleshooting measures to be taken. On the Nmap application, the user can do several tasks such as finding live host on their network, open ports on their network, and identify operating system of services. Once the application is up and running there are several options that can be done with a known IP address. Once the scan is running, the application can give detailed analysis of all the information it was able to retrieve as well as the time and numbers it took to get all the information. Other more intensive scans can be run to find whether the IP target is even online, their Ping latency and even how many ports were used and open. Using these two applications for a total of three days, I have become familiar with some of the options to find certain information as well as what that information means to my devices as well as my information safety. During my process of trying to understand how the application

works and utilizing all the core features it has to offer I used my own IP address to see what information is available to everyone else on the same networks as I am. On Fing, I immediately found my device by its name and was able to find out when my phone was last online connected to my internet, what operating system it was, and what device was being used (in this case it was my iPhone). Using Nmap, I was also able to scan my phones Ping once the Fing app gave me the exact IP address. Using a different profile, I was able to scan my phone using Nmap for all my ports, luckily it did not give out any information other than the number of ports it scanned for on my phone and that all of them were closed. Overall, these two applications are great tools to figuring out troubleshooting and securing networks. People who are having slow connections for their devices can use the speed tests and find out if their internet is slow or if it is the device itself. If it is the internet, then the internet provider can reboot the device or swap out the router to ensure a better connection. The security aspect can be useful for those who do not want others to see information, they can use a VPN to cover themselves and other tactics to ensure their identity is safe....