16 Sep 08 NetCat tutorial for Linux & Windows, HOWTO, nc

I wrote this article some time ago, but thought I’d publish it here for reference.

This text is dual licenced under the GFDL and GPL

There are two known versions of netcat. The version of netcat used here is the original Avian Research version. Not the newer GNU release

Discuss this page here

Contents:

- Netcat Basics - 1

- What is Netcat? - 1

- Netcat Syntax - 2

- Netcat Installation - 3

- What are the most basic uses? - 4

- Simple File Transfer - 4

- Tar - 5

- UDP - 6

(more…)

Tags: advanced uses, command prompt, command shell, cryptcat, inetd, internetworking, ipv6, Linux, nc, nc11nt, netcat, netcat installation, netcat syntax, networking, proxy, proxying, scanning, simple file transfer, socket, spoofing, syslogd, tar, tcp, udp, windows

15 Sep 08 Quick Linux and Windows OpenVPN HOWTO and tutorial, including VPN routing

OpenVPN is a popular Windows/Linux VPN Server/Client pair. I think there’s a separate GUI available for it if you’re so minded. This howto will cover command line usage only.

I’ll provide example configuration based on a Linux server and a Windows client, however the same applies pretty easily if you wanted to mix and match.

On debian, apt-get install openvpn. On any other linux distro, use your own package manager or alternatively download from source and compile.
(more…)

Tags: 10.8.0.1, 10.8.0.2, apt-get, client, compile, compression, daemon, daemonize, debian, default gateway, distro, established, forward, generate, interface, IP address, iptables, ip_forward, keepalive, Linux, linux server, masquerade, nat, openvpn, package manager, ping, related, remote, route, route add, route delete, route print, routing, secret key, server, source, tap, tcp, tcpdump, traffic, tun, udp, VPN, vpn client, vpn server, windows, windows client