PortScanner | C 实现多线程端口扫描器V1.0 - PortScanner项目说明

First skip over you header using next(). Then you can read each row by first taking the ip address and then reading all other entries as ports using Python's * operator. For example:

For example:

Reverse the order of your arguments.

Try creating a connection inside the forloop. And make sure that the input is in valid form. You can do that using try and catch near the sock.connect_ex to check whether you are actually sending valid host or not.

To make things faster you can use settimeout(0.25) inside the for loop too.

I meant to do this -

No, that's not a syntax error, that's an attribute error. Those are different beasts.

There is no connect_ex function in the socket module; there is one on socket objects.

That is, you may want to change that to sock.connect_ex()(though you should also remember to close the socket if it's successful), or instead of initializing the sock once, you could use socket.create_connection() to try and connect a TCP socket.

Put a while loop around the code that asks for the password. When the correct password is entered you'll continue to the rest of the code.

Node.js doesn't get bundled with the source code of apps. The package.json might have a section called "engines" in which it will state what version you should be using.

If the root package.json doesn't have the "engines" section, then it may be posable that the some of the dependencies do say which version they require to be used. It would be kind of annoying going through each one to check, so a good way would be just to download a version of Node and run npm install. If everything works, then you know that the Node version the app was created in is most likely older (its a bit tedious, I know).

Another thing you could look for (but might not be to helpful) would be to check when the files of the source code were created (especially the package.json file), and find the Node version that was released around that time. This wont be as accurate as the first method but it will give you a working version of Node.

When it comes down to it though, its probably always best to use the most up to date version (or the most recent LTS version) as they come with all the latest security patches and improvements.

You have to count the open ports, the loop you've written now won't do anything useful.

You should initialize the counter before the loop where you're going to check all of the ports.

Then when a port is open (where you print that the port is open) increment the counter by 1. After the loop is finished you can print the counter which has the total number of opened ports.

It would look something like this.

I was able to solve this problem, making use of this package I found. The package makes use of Images in the DOM. Here it is, for anyone looking to solving this problem later in the future. https://github.com/ItsAsbreuk/itsa-browser-portscan

I think that you maybe need a timeout.

Eventually, your sock.connect_ex( ), will to raise an exception socket.error: [Errno 110] Connection timed out, as you can read more about it, in this answer.

But the default timeout could be 120 seconds, and maybe you don't want to wait so much. So, you can set your own timeout, like that: