Hook

Their other posts in the index, biggest breakout first.
Nmap is a tool that is used to scan a network for open ports and live devices connected to the network. To start using Nmap, you simply type in Nmap to call the tool. Now, Nmap has a bunch of flags that allows it to do different things, but here are the most common ones. Dash SV shows the service in version, for example, are they using SSH, HTTP, etc. Dash O tries to find the target operating system, Dash F scan for the top 100 most common ports. dash P dash P scans for all 65,000 ports. That's how many ports there are in total and dash O and saves the output to a file. So right now if I run this command, it'll try to find the service in version. It'll try to find the operating system. It'll scan for the top 100 most common ports. It'll put that output into output.txt and the target that it's scanning is this IP address. So if I run it, it will start scanning. It might take a minute, but as you can see, here it is. It looks kind of complicated, but if you just read what it says, it's pretty simple. If you look right here, these are the ports that are currently open, and since we put dash SV, you could see the service and you can see the version right here. If I scroll down, I could also see that it has a guess of what operating system it probably is. And if I want to look for the scan again, I can go to LS, find the file, and then just open the file. You should only do this if you have explicit permission from the target. So be a good boy or you could get in trouble.