Wikipedia has a nice entry with examples on Netcat.

How To

Unzip the file and move the resulting folder to a location where you can access it, for example.

C:\Windows\nc111nt

Open a command line window and move to the location where nc111nt is located by using the command cd.

cd C:\Windows\nc111nt

To run Netcat you need to type.

C:\Windows\nc111nt\nc.exe [parameter]

To view a list of available parameters type.

C:\Users\Luis\Downloads\nc111nt>nc.exe -help
[v1.11 NT www.vulnwatch.org/netcat/]
connect to somewhere:   nc [-options] hostname port[s] [ports] ...
listen for inbound:     nc -l -p port [options] [hostname] [port]
options:
        -d              detach from console, background mode
 
        -e prog         inbound program to exec [dangerous!!]
        -g gateway      source-routing hop point[s], up to 8
        -G num          source-routing pointer: 4, 8, 12, ...
        -h              this cruft
        -i secs         delay interval for lines sent, ports scanned
        -l              listen mode, for inbound connects
        -L              listen harder, re-listen on socket close
        -n              numeric-only IP addresses, no DNS
        -o file         hex dump of traffic
        -p port         local port number
        -r              randomize local and remote ports
        -s addr         local source address
        -t              answer TELNET negotiation
        -u              UDP mode
        -v              verbose [use twice to be more verbose]
        -w secs         timeout for connects and final net reads
        -z              zero-I/O mode [used for scanning]
port numbers can be individual or ranges: m-n [inclusive]

Real Worl Example:

Netcat is possible of many things, but my favorite use is to transfer disk images created with dd over the network. As an example I am going to image a 4GB CF card over a gigabit network(no compression). The concept of sender and receiver will be used.

System where the image will be stored:

nc –l –p 7000 | dd of=/dev/hda

Source system:

dd if=/dev/hda | nc 192.168.1.10 4000

Not many things are this easy to run and use, but the nice thing about Netcat is that it works regardless of the operating system being used. Like said I mostly use it to transfer the images I create with the help of dd (Parted Magic) over to my Windows server.

Links:

• Wikipedia entry Netcat
• Download from hackosis.com
• Download from local mirror

Want To Try Out Google Chrome OS For Yourself? Here’s How…

Most people won’t be ready to undertake the daunting task of actually taking Google’s recently open-sourced code and turning that into a bootable computer. So, in this article, they have put together a step-by-step guide to doing this, for free. It should only take about 15 minutes (depending on how long it takes to download the OS itself).

Want To Try Out Google Chrome OS For Yourself? Here’s How…

Download Google Chrome OS and Run it from a USB Drive

Within 24 hours of its availabilty, the web was littered with disk images for running the new Google OS on virtual machines such as VMWare and VirtualBox. As an alternative, this article shows you how to run Chrome directly from a USB drive.

Download Google Chrome OS and Run it from a USB Drive

Download Google Chrome OS for free – gdgt

This is one of the many places to download the Google Chrome OS. Signup here , takes about 2 minutes, and then you can download it.
You will need VMWare Player or VirtualBox to run the OS.

Download Google Chrome OS for free – gdgt

By Paul Andrew (Speckyboy and speckyboy@twitter).

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