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วันเสาร์ที่ 6 มีนาคม พ.ศ. 2553

Viewing an IP Network Camera over the Internet

IP Network Cameras are designed to work in a Local Area Network (LAN) and over the Internet. Within
a LAN, IP Network Cameras allow for motoring local to the computer network to which the cameras are
attached to. With additional configuration of your computer network you have the ability to allow
for your IP Network Camera to be monitored not only locally but remotely as well using the Internet.
For advice on how to configure your network to allow for your camera to work over the Internet please
follow this guide.

Configuration - Local Access

Before you are able to configure your camera to work over the Internet we suggest configuring the
camera for local access first. Please refer to the technical documentation that came with your camera
for proper instructions on initial configuration of your camera. Once the camera has been configured
for local access you are then ready to start configuration for remote access to the camera over the
Internet.

Configuration - Remote Access

Before you proceed to configure your local network to allow your camera to be monitored from a remote
location, we suggest that you contact your network administrator to ensure you have the proper authority
to configure remote access to the camera. Once you have consulted with your network administrator you
may proceed to configure remote access to the camera.

In order to configure your camera to work over the Internet you will need to configure what is called
Port Forwarding. Port Forwarding allows for you to access the camera from a remote location by
forwarding the network ports used by the camera onto the Internet. These ports are usually forwarded
by accessing your network's router and configuring the router to forward the ports used by the camera.
For details as to what ports will be required for forwarding for your IP Network Camera, please consult
the manufacturer of your camera. For additional information beyond this guide regarding Port Forwarding,
please visit http://www.portforward.com where you will be able to find step by step guides on Port Forwarding
specific to different models of routers.

Step 1 - Obtain IP Address Information

In order to access your network's router for configuration of port forwarding you will require the IP
Address of the router to which the camera is connected to. You can obtain this IP Address information
by consulting with the network administrator of your network or by opening up a Command Prompt within
Windows and entering in the "ipconfig /all" command. To open a command prompt window you will need to
click on the Window's Start button and then proceed to click on Run. Now you will enter in "cmd" and
click on "Ok" to proceed.

Once you have displayed the IP Configuration for your computer using the "ipconfig /all" command, you
will then be able to record the IP Address for your router. You will need this IP Address in order to
access your router for configuring Port Forwarding. Your network router's IP Address will be displayed
as the Default Gateway.

Step 2 - Accessing your Network's Router

Now that you have obtained the IP Address for your network's router you will then need to proceed to
access your router by typing in the router's IP Address in a web browser.

Step 3 - Configuring Port Forwarding on your Router

Now that you have access to the network router you will then need to proceed to browse to the
configuration section on the router where port forwarding is to take place. Please consult with the
manufacturer of your router for details as to where this section is. You may also review the website
NetworkCameraReviews.com where you will find detailed forum posts on port forwarding with various routers.

The Private IP Address for the camera (local IP Address of camera) has been entered in as well as a unique
name that will be associated with this particular port that is to be forwarded. In this example port
80 will be forwarded for the camera. Please consult with the manufacturer of your camera for details
on what port(s) will be forwarded. Some IP Network Cameras require more then one port to be forwarded
in order for you to obtain all the features the camera has to offer. You will also be presented with
an option to select a Protocol to be to be used. Common options found are UDP, TCP or Both. Your router
may have additional options. In most cases you will need to select the protocol option "Both". This
will associate both UDP and TCP protocols to the port(s) being forwarded. In this example we with click
on the Apply button once all required information has been entered.

After the settings have been saved within the router's configuration you should be able to see this
information displayed in a list. There may be other entries in this list already by default.

Step 4 - Accessing your IP Network Camera over the Internet

Now that you have configured port forwarding on your network's router to allow the camera to be accessed
over the Internet, you are now ready to attempt to access the camera. We suggest attempting to access
the camera from a remote location and not within the local network for confirmation that port forwarding
was configured properly. At a remote location you will need to type in the Public IP Address that is
provided by you Internet Service Provider (ISP) in order for you to be able to access your camera.
Please contact your ISP if you are not sure what your Public IP Address is. You will not be able to
access the camera by it's Private IP Address (Example: 192.168.0.100) because the camera's Private IP
Address cannot be seen on the Internet and can only be seen within the local network to which the camera
is attached to.

In most applications port 80 will be forwarded and because of this no port information will be required
in the Address Bar when attempting to access the camera. However, there are cases where an IP Network
Camera will not use port 80. These cases are usually related to security concerns with using port 80.
We suggest contacting your network administrator or the manufacturer of you router to inquire upon the
possible security concerns with forwarding port 80. If port 80 is not the port being used you will be
required to enter in the full IP Address followed by a colon and the port number used.

วันเสาร์ที่ 20 กุมภาพันธ์ พ.ศ. 2553

วันเสาร์ที่ 13 กุมภาพันธ์ พ.ศ. 2553

How to Hide Your IP Address With a Proxy Server

Every time you use the Internet, you're being tracked by both your server and the servers you access. Your ISP keeps logs of your MAC address (your network adapter card's number) and your private IP address; the rest of cyberspace sees your public IP address assigned by your ISP. Yes, no matter what you do and where you go, your computer trail leads right to your doorstep. Scary thought? Disturbing? No doubt.

How Your IP Address Invades Your Privacy

Whether or not you're engaged in illegal or immoral activity, there's reason to be worried about this lack of privacy on the Internet. Even people who do nothing strictly unlawful deserve privacy. You may be sending an anonymous mail, or having an illicit affair, or visiting websites that your family and friends would be offended by. You may have moved away and parted with friends and just want to check on their blogs without being identified. Perhaps you share an e-mail account with another person and you want to answer mail for them without giving away the fact you are someone/somewhere else. There are all kinds of reasons why being anonymous is important, and they are not all illegal.

Unfortunately, you can't be anonymous without a proxy server that hides your tracks for you. The websites, forums and web mail services you use all log your visits. Even social networking sites do. If you use your office's network, the administrator keeps records of who uses it and when. Your public IP address may be changeable and have limited details only, but whoever gets past that and sees your private IP address (behind your ISP router) and worse, your Mac address, will be able to identify you.

This lack of anonymity not only affects your privacy; it can also be a security threat. Through such details about your computer, it's possible for a hacker to build a profile of you and gather such critical info as usernames, passwords, phone numbers and credit card numbers.

How to Hide Your IP Address with Proxy Servers

An anonymous proxy server can protect you from such tracking. There are two kinds of annoymizing proxies. Disguised proxy and elite proxy. A disguised proxy is identifiable as a proxy server by the website you visit, but it still hides your real IP. An elite proxy is cleverly masked to look like a genuine IP address, and it also hides your original IP. The elite proxy is better because it makes you less "suspicious."

How to Use a Proxy Server with Internet Explorer

First go to Internet Options - Connections - LAN Settings

In the Proxy Server area, check on "Use proxy server for LAN" box.

Enter the proxy server in the address field. Enter the port number also in the port box.

Click OK to close LAN box and Internet Options box. You're ready to surf anonymously!