Hot Computer Networking Posts

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: Set up an Airport Extreme for outside computer access

This simple video tutorial explains how to use Airport Utility to configure your Airport Extreme so you can access your Apple computer remotely for file and screen sharing. It explains how to setup DHCP IP reservations and port forwarding using Manual Setup option of the Airport Utility. Considering that the tutorial becomes a little bit technical during the second part, this tutorial is aimed at users who already have at least some knowledge and/or experience setting up a network. Absolute b...

How To: Create a wireless network at home

Anyone can set up their own wireless network. All you need is a little know-how. You will need a computer with wireless capability, a high-speed modem, a wireless router, and a broadband internet connection. Don't get tied to the wall; a wireless connection will allow you to move the computer freely around your home and still get an internet connection. Watch this video tutorial and learn how to hook up a wireless network at home.

How To: Build APRS on the cheap

Long-time packeteer Bob Bruninga, WB4APR, developed the Automatic Packet Reporting System (APRS), which allows packet radio to track real-time events. It deviates markedly from the usual message- and text-transfer activity. Instead, APRS concentrates on the graphic display of station and object locations and movements.

How To: Hack an Oracle database

In this installment from the Unorthodox Hacking series of Internet security tutorials, you'll learn how to get a shell on an Oracle database. To see how to pop a shell from within Oracle or even perform a port scan from the database itself, watch this hacking how-to.

How To: Make your wireless network secure

In this tutorial, Brian teaches us how to make your wireless network secure. First, go to the start menu, then go to run and type in "cmd", then type in "iconfig /all". Now a new window will pop up and you will look for the default gateway. Find the IP address to log onto the routers you have. Now, type in your IP address into your address bar on your internet browser. You will be asked to log into your account with your password and user name, which you can find at the manufacturers website....

How To: Receive email alerts for a Netgear wireless router

Looking for a guide on how to set up your Netgear wireless router to automatically send you email alerts when built-in blocks are triggered? This clip will show you how it's done. It's easy! So easy, that this video tutorial can present a complete, step-by-step overview of the process in about two and a half minutes. For more information, including detailed, step-by-step instructions, watch this video guide.

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: 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.

How To: Use DNS spoofing in Ettercap

In this video, you'll find instructions on how to use the Ettercap plug-in dns_spoof to set up DNS spoofing on a local area network. This Ettercap plug-in is ony one potential way to pull of DNS spoofing, and only works if the attacker is on the same subnet. To get started DNS spoofing with Ettercap, press play! Use DNS spoofing in Ettercap.

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: Hack into WEP encrypted wireless networks

Check out this video tutorial on how to hack into WEP encrypted wireless networks. The aim of this video is to show people how easy it is to crack a wireless network with WEP encryption. Seriously, if you know how to do it, even a little kid could if you showed them how. Now that you know this, you should upgrade to WPA! It is much harder and takes much longer to crack.

How To: Use the Hacker Defender rootkit or HackDef

Hacker Defender is one of the most widely deployed rootkits in the world. It is a user-mode rootkit that modifies several Windows and Native API functions, which allows it to hide information (files, processes, etc.) from other applications. In addition, Hacker Defender implements a backdoor and port redirector that operates through TCP ports opened by existing services. This means it is not possible to find the hidden backdoor through traditional means, like launching a remote port scan agai...

How To: Setup an Asterisk Server

Over the years, I have enjoyed playing with Asterisk. I have found Asterisk to be extremely powerful and fun to play with. There are several books and many scattered how to articles out there, but most are outdated and the information required to build Asterisk from beginning to end can be a bit daunting. I wanted to combine all the steps into a single article and share my experience with everyone. If I have left out any steps please let me know.

How To: Make an email server on your home computer

Learn how to make an e-mail server on your home computer to host your own web page and webmail service by following the steps outlined in this video tutorial. You will need a web server, an e-mail server, and a webmail interface. For the server, the most common program is WampServer, which you will need to download. Run through the installation process and grant the program access to your fire. Click on the new icon on your desktop and click Put Online and then Start All Services. This will g...

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: Change the default password on a NETGEAR router

In this video tutorial, viewers learn how to change the default password on a NET-GEAR router. Begin by opening your web browser and go to this site: Router Login. When the Prompt window opens, type in your router's user name and password, and click OK. In the sidebar, under Maintenance, click on Set Password. Now type in the old password, new password and re-type the new password once again to confirm. Finish by clicking Apply. This video will benefit those viewers who use a NET-Gear router,...

How To: Secure a Zyxel P-660HW-t1 wireless router

This video shows how to secure a wirelees internet connection on your Zyxel P-660hw-t1. For this, first click on Start button and open Internet Explorer(or any other browser). On the address bar of the browser, type in the IP address of your router. On the next page, enter your password and on the next page, either change the password or ignore. On the next webpage, under Advance setup, click on Wireless LAN. On the next page, click on 8021xWPA. Select authentication required and then click a...

How To: Use Remote Desktop in Windows Server 2003

Remote desktop in windows is set up with these easy to follow steps. First go to your start menu this is in the bottom left corner of your desktop. In the start menu locate your control panel. In the control panel open up your systems folder. Once this is open click the remote tab at the top right of this folder. In this tab you will have the option to check “allow user to connect remotely to this computer.” From here press ok to exit out of the systems folder.Again click the start menu, navi...