Scan for FTPs

[duryodhan]

IS there any way I could scan my school network for servers accepting FTP connectiions? I was thinkin of checkin each ip for Port 21. But I have no idea how to do it?

 

[brockj]

I have used nessus. There would be a little work getting it setup, but works well formonitoring a network. Also, you need a *nix box to run it on.

Or, if this is a one time deal you can download a trial of GFI languard. Runs on windows, and I think you can get a 30 day trial for it (I know a 10 day).

 

[n0cmonkey]

nmap will tell you if there is something listening on port 21.

 

[WobbleWobble]

GFI also has LANguard, which is probably the best Windows based scanner.

 

[Cloud Strife]

Nmap is a powerful tool but isn't available in a gui. You'll need to use a command prompt.

I suggest Angry IP.

 

[shamans]

you'll need a scanner to scan every port on every comp on the network and see if it's an ftp server...

 

[duryodhan]

But would the Network Admin come lookin for me if I use this??

 

[Cloud Strife]

Originally posted by: duryodhan
But would the Network Admin come lookin for me if I use this??

Probably not. FTP is more like a public webpage to download files, that's if they allow anonymous connections. It's highly insecure; any sensitive data should not be put on a FTP server.

 

[Red Squirrel]

You could use nmap -P0 -p 21 10.1.1.0/24, it will scan the whole 10.1.1.0 range for any machines with port 21 open.

Just keep in mind if an FTP server DOES have critical stuff on it, its probably set to run on a different port, but you may be lucky.

The real way to do it would be to do a full port scan of everything, concentrate on 21 first, but then look at all the other ports (responses). I hope your intents are not malicious as I dont support that. But a simple port scan is not malicious in itself, just depends what you do with the results after. (well a port scan COULD be harmful, and seen as a DoS attack, depending on the settings)

 

[spidey07]

Originally posted by: duryodhan
But would the Network Admin come lookin for me if I use this??

any type of scanning activity is normally logged and flagged, and in most cases investigated.

have fun with "hacking" your university network.

 

[duryodhan]

I am on generally a 5 KBps connection. What would I do?? Surf? I was just seeing some FTP servers on the University Network that have loads of movies on them. So I wanted to find them!