[IMAGINARY666]

Hello guys

I'm looking for a port scanner source... I know, there are some sources on the internet but they are very basic, or lead to memory exhaustion (really). I'd like something advanced, maybe a Syn scanner, or something that won't lead to memory exhaustion after i scan from port 1 to 20000... Please note that I'm not the kind that writes a code from scratch, I like to understand the code, and improve it, and maybe include it in something bigger.

Thank you very much.

[nuk]

Here's one: http://www.codeproject.com/Articles/1725...rt-Scanner
Here's two: https://www.planet-source-code.com/vb/sc...&lngWId=10

BTW....that was after only 1 Google search and it was like magic or something LoL

[IMAGINARY666]

Here's one:
Here's two:

BTW....that was after only 1 Google search and it was like magic or something LoL

One - Timers, it might not work well, but I'll give it a try, maybe I'll replace the timers with a background worker.

Two - 2003... cool

[Marwix]

One - Timers, it might not work well, but I'll give it a try, maybe I'll replace the timers with a background worker.

Two - 2003... cool

You could download one of my old ones that I made a long time ago.

http://www.mediafire.com/download/aqtpak...+Keiko.rar

Educational purposes only.

[IMAGINARY666]

You could download one of my old ones that I made a long time ago.

Educational purposes only.

Sorry but it doesn't work remotely... I can only scan 127.0.0.1

Btw i have this, and it does work remotely, but only for a certain port

Code

Dim logonServer As New TcpClient()

      Try
      logonServer.Connect(iptxt.Text, porttxt.Text)

      Catch generatedExceptionName As Exception
      label1.ForeColor = Color.Red
      label1.Text = "Offline!"

      End Try
      If logonServer.Connected Then

      label1.ForeColor = Color.LimeGreen
      label1.Text = "Online!"
      logonServer.Close()
                End If

I tried to make it work for a port range but i failed... :(
Can someone help me to make this work for a port range?

[Punkbastard]

For a port range use a for-loop.
My quick code:

Code

For portIndex As Integer = 1 To 5 'You could use two numericupdown's here for start-port and end-port (For port As Integer = numericUpDownStartPort.Value To numericUpDownEndPort.Value
    Try
      logonServer.Connect(iptxt.Text, porttxt.Text)
      Messagebox.Show("Connection Successful on port: " & Convert.ToString(portIndex))
    Catch ex As Exception
      Messagebox.Show("Connection Failed on port: " & Convert.ToString(portIndex))
Next

However, change your validation, as a label would not work right, try to add the logs to richtextbox or something like that.

[IMAGINARY666]

For a port range use a for-loop.
My quick code:

Code

For portIndex As Integer = 1 To 5 'You could use two numericupdown's here for start-port and end-port (For port As Integer = numericUpDownStartPort.Value To numericUpDownEndPort.Value
    Try
      logonServer.Connect(iptxt.Text, porttxt.Text)
      Messagebox.Show("Connection Successful on port: " & Convert.ToString(portIndex))
    Catch ex As Exception
      Messagebox.Show("Connection Failed on port: " & Convert.ToString(portIndex))
Next

However, change your validation, as a label would not work right, try to add the logs to richtextbox or something like that.

It does work but it's the slowest thing ever made. :\

[Punkbastard]

It does work but it's the slowest thing ever made. :\

That's because it takes time to connect. You could use multithreading to make it look more 'flawless' but I guess you won't get it much faster.

[IMAGINARY666]

That's because it takes time to connect. You could use multithreading to make it look more 'flawless' but I guess you won't get it much faster.

I did use threading, lol, it's important, i dont want to kill my UI. But it is slow, not the slowest thing but meh, slow.

[Odus]

I did use threading, lol, it's important, i dont want to kill my UI. But it is slow, not the slowest thing but meh, slow.

If you want something better, write it yourself. Beggars can't be choosers.

[IMAGINARY666]

If you want something better, write it yourself. Beggars can't be choosers.

I'm ok with it, i'll do some research to find out how this thing works.

[Ninja]

Here's one: http://www.codeproject.com/Articles/1725...rt-Scanner
Here's two: https://www.planet-source-code.com/vb/sc...&lngWId=10

BTW....that was after only 1 Google search and it was like magic or something LoL

omg are you a wizard or something? what is this magical place called Google?
OT: Seriously, resort to Google first. It prevents these silly posts on the forums and saves you a lot of time waiting for an answer.