Hot Computer Networking How-Tos

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 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: 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: 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: Secure a Linksys WiFi network from a Mac computer

In this video from benjamoon we learn how to secure a linksys wifi network from a Mac. First type in your IP address in your browser bar which is then press enter. If it asks for a password it is admin. Click on Wireless and here you can edit your name and who can access your wifi network. Under wireless security, go to WPA personal from the drop down menu. When you make your password, make it very challenging. He recommends just banging your hand against the keyboard, as long as ...

How To: Set up folder access and map networks in Windows 7

Network mapping lets PC users organize multiple computers into a system that provides informational data access. This video tutorial shows how to set file sharing permissions and assign users designated privileges within a network. Establishing a network provides functionality within a workplace and facilitates virtual communication among users.

How To: Encrypt a NETGEAR router with WPA password protection

In this tutorial, we learn how to set and encrypt a Wi-Fi password using WPA in Netgear. First, type "" into your internet browser. Next, a pop-up window will appear, type your user name and password into this dialog box. A new window will pop up, click on the tab on the left hand side of the screen that says "wireless settings". Type in your user name and password once more, then find where it says "security settings", and click on the "WPA-PSK" radio button. Now, make a p...

How To: Optimize SQL performance

Gain insight into best practices for SQL Server optimization and ways to alleviate many root causes that can impact performance of your SQL Server database. Kevin also will discuss how to manage for planned and unplanned changes, speed time to implementation of your applications and ensure that your databases are running as they should.

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 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: 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: 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: Hack a weak WPA wireless network

This video tutorial presents instructions on hacking a weak Wi-Fi Protected Access, or WPA, wireless network. To follow along, and replicate this hack yourself, you'll need knowledge of the deauthentication, or DeAuth, process. For more information, and to get started hacking WPA networks for yourself, watch this hacking how-to.

How To: Password protect your wireless network

Most of the home wireless networks are not set up by professionals and hence they might lack in security features. People just set up the wireless networks by connecting the devices and powering them up and never care to apply security settings to the network. This may result in your wireless network being compromised by unwanted external entities. How ever you can do a web based configuration settings and secure your wireless network by password protecting it. This settings differ from the m...

How To: Capture packets with the Wireshark packet sniffer

Wireshark is the world's foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions. This video tutorial demonstrates how to get the Wireshark packet sniffer up and running to do a capture as well as how to run a traceroute command. To get started hacking with Wireshark, watch this how-to.

How To: Hack a network with Nessus 3

The Nessus vulnerability scanner, is the world-leader in active scanners, featuring high speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture. Nessus scanners can be distributed throughout an entire enterprise, inside DMZs, and across physically separate networks. In this network security video tutorial, you'll learn how to hack a network using Nessus 3.

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.

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