How To: Port scan with Nmap

Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they a...

How To: Bypass RealVNC authentication

VNC stands for Virtual Network Computing. It is remote control software which allows you to view and fully interact with one computer desktop (the "VNC server") using a simple program (the "VNC viewer") on another computer desktop anywhere on the Internet. The two computers don't even have to be the same type, so for example you can use VNC to view a Windows Vista desktop at the office on a Linux or Mac computer at home. For ultimate simplicity, there is even a Java viewer, so that any deskto...

How To: Easily open your NAT on a ZyXel router

In this Computers & Programming video tutorial you will learn how to easily open your NAT on a ZyXel router. There are three steps involved in doing this. Open your web browser and type in the router IP address which is normally http://192.168.1.1. Then you will get the log in page. The password is either 1234 or admin. It will be written on the packaging of the router. On the next page click on UPNP, then check all three boxes and click 'apply'. Then you click on NAT and set the start and en...

How To: Detect hackers with netstat

Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics. It is available on Unix, Unix-like, and Windows NT-based operating systems. This video tutorial presents a basic introduction to working with the netstat tool. Determine whether you've been hacked with this how-to.

How To: Set up the Cain & Abel network security tool

First you have to install program, called 'Cain and Abel'. Then, you will be automatically asked to install 'Win Pcap' and you should do that. After installation you have to click on 'Cain and Abel' program icon with right mouse button and start it as administrator. Then push blue plus sign to scan Mac addresses. After scanning go to the bottom of program window and press APR tab. Then push blue plus icon again. When table appears push first option in first square and first option in second a...

How To: Use the Nmap security tool

This hour-long hacking tutorial looks at the Nmap security scanner. In particular, this Nmap tutorial looks at port scanning concepts, TCP three way handshake, stealth scans, idle scans, bounce scans, version detection, OS detection, NSE/LUA scripting and firewall logs. To get started using Nmap, watch this video tutorial. Use the Nmap security tool.

How To: Change your IP or MAC address

The video is about how to change the IP address. MAC address is the unique identifier a site of the most network adapters. MAC address is used to determine what IP address the computer will have and one way to change the IP address is by changing the MAC address. The method is only applicable for the windows systems and for the MAC systems you need to look at the link provided. In Windows in the start menu, type cmd in the run/search box, which will launch the command window. Type ipconfig/al...

How To: Encrypt a D-Link router with WEP password protection

In this Computers & Programming video tutorial you will learn how to encrypt a D-Link router with WEP password protection. First you connect to your wireless network. Open your browser and type in http://192.168.0.1. Type in your base station username and password and press OK. Under the SETUP tab, select WIRELESS SETTINGS, scroll down to 'Wireless Security Mode' and select 'Enable WEP Wireless Security'. Scroll down to WEP. Under WEP Encryption pull down menu select 128Bit. Now create a pass...

How To: See who is connected to a computer with netstat

Want to see whether your PC is being accessed by hackers? Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics. It is available on Unix, Unix-like, and Windows NT-based operating systems. This video tutorial presents a basic introduction to working with the netstat tool. Determine whether you've been hacked with this how-to.

How To: Set up a Linksys WR54g or WRT54g2 wireless router

This video tutorial is in the Computers & Programming category which will show you how to set up a Linksys WR54g or WRT54g2 wireless router. First you connect to your Linksys router. Then go to http://192.168.1.1 and type in "admin' as your password in to log in window and click "log in'. then go to the "wireless' tab and enter your wireless network name. In the wireless channel select '11 2.462GHz' and click save. Next go to "wireless security' and type in the wireless network key. This is t...

How To: Configure a computer wireless router

In this how-to video, you will learn how to configure and change the settings of your wireless router. If you have a bt router, go to api.home. This will bring up your wireless ADSL configuration. Click on advanced to change the advanced settings. You must enter your user name and password. The default for these are admin and admin. Now you can edit the settings. Go to MAC address control to block certain devices. If you are running a non BT router, go to run and type in cmd. Now, type in ipc...

How To: Set-up a (dlink DI-524) wi-fi router

First, you will need a surfboard cable modem. You will need a wireless router with an unscrewed antenna and a power cord. Make sure you have two ethernet cord and a computer. First, take the surfboard and screw the cable into it; make sure it is completely tight. Next, take the router and one ethernet cord. Look for the spot that reads WAN; plug the ethernet cable into this spot. Take the other end of the ethernet cable and plug it into the port on the surfboard.

How To: Set up an HP wireless printer

In this tutorial, we learn how to set up an HP wireless printer. First, click "setup" on the printer, then go to "network", then "wireless setup wizard". The printer will now go through the setup process and show you available wireless networks in your area. If your network requires a password, enter it by typing it in with the keypad. Now, install the software to any computer and wait for the blue wireless light to turn on. When this is done, you will be able to print wirelessly from any com...

How To: Create an SSH tunnel for your Mac Mini server

How to Use Your Mac as a Server: Turn your Mac Mini into a server! Yes, that's right, with a little know-how and a little spunk, you can turn an inexpensive Mac Mini computer into a server to provide services over you network. You won't even need the Mac OS X Server, just the Mac OS X Client, so there is no extra software to buy, just the Mac Mini and it's operating system.

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