NetGong is a sophisticated network monitoring solution that allows network administrators, webmasters, and Internet service providers to monitor any networked device on the Internet, corporate intranet, or TCP/IP LAN and receive alerts immediately via audible alarm, message, e-mail, or third-party software when a connection fails. It is a powerful personal monitoring product delivering low cost, simplicity of operation, and round-the-clock coverage.

Round-the-clock network availability is mission-critical to any successful e-business. Without a sophisticated monitoring solution, network devices or services can fail without so much as a peep. If that crash occurs over a holiday or weekend, you could be out of business for hours, or possibly days. Worse yet, you might find out from an irate customer. Avoid costly network downtime by using NetGong as your first line of defense. NetGong continually probes and transacts with network resources on timed intervals, to test their availability and responsiveness. If a failure occurs, NetGong automatically notifies you. The result? You are back in business faster!

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What are the system requirements for NetGong?

1. Windows 95, 98, Me, NT, 2000, XP, and Server 2003.
2. Internet Explorer 5.5 or later.

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This file is a component of Microsoft Active Accessibility (MSAA) library. Probably you don't have MSAA installed, or the installed version is outdated. Windows 98, Me, NT, and 2000. Download and install the current MSAA version 2.0 from Microsoft.

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When I use NetGong, I get a runtime error message about abnormal program termination. What do I do?

This error is most likely caused by third party software that tries to use the same port as NetGong Web server. To resolve this problem, please do the following:

1. Start NetGong.
2. Right-click the NetGong icon in the system tray.
3. Choose Details from the menu.
4. Click the Events tab.
5. Click the Options button.
6. Click the Remote Access tab.
7. Change the Port number to another value.
8. Press OK.

Be aware that if you use a different port than the default port 80, the new port number must also be included in the URL.

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When I try to start NetGong, it hangs at the information screen. What do I do?

Probably Active scripting is disabled for your My Computer security zone. This security zone is hidden by default on the Security tab in the Internet Options dialog box. The Flags value in the following registry key determines whether you can view the My Computer security zone on the Security tab in the Internet Options dialog box:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0

Setting the data value of the Flags value to 47 (in hexadecimal) causes the My Computer security zone to be displayed. Setting the data value of the Flags value to 21 (in hexadecimal) causes the My Computer security zone to be hidden.

To enable NetGong to run, you need to enable Active Scripting. Please do the following:

1. Start Internet Explorer.
2. Select Internet Options from the Tools menu.
3. Select My Computer on the Security tab.
4. Press the Custom Level button.
5. Enable Active scripting.

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Why does my NetGong icon change colors?

Whenever NetGong is running, its icon will be visible in the system tray. However, apart from simply letting you know whether or not NetGong is running, the icon is also dynamic and will change colors based upon the current NetGong status. The following is a list of the icon indicators:

• Violet - All OK.
• Red - Network is down, no answer from host, or service failed.

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Any (end-user) computer system that connected to a network. Hosts range in size from personal computers to supercomputers.

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What is an IP address?

The 32-bit address assigned to hosts that want to participate in a TCP/IP Internet. IP addresses are the abstraction of physical hardware addresses just as an internet is an abstraction of physical networks. Actually assigned to the interconnection of a host to a physical network, an IP address consists of a network portion and a host portion. The partition makes routing efficient.

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What is a port?

The abstraction that transport protocols use to distinguish among multiple destinations within a given host computer. TCP/IP protocols identify ports using small positive integers. Usually, the operating system allows an application program to specify which port it wants to use. Some ports are reserved for standard services (e.g. electronic mail).

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What is IP?

(Internet Protocol) The TCP/IP standard protocol that defines the IP datagram as the unit of information passed across an internet and provides the basis for connectionless, best-effort packet delivery service. IP includes the ICMP control and error message protocol as an integral part.

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What is TCP?

(Transmission Control Protocol) The TCP/IP standard transport level protocol that provides the reliable, full duplex, stream service on which many application protocols depend. TCP allows a process on one machine to send a stream of data to a process on another. It is connection-oriented in the sense that before transmitting data, participants must establish a connection. Software implementing TCP usually resides in the operating system and uses the IP protocol to transmit information across the underlying internet.

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What is UDP?

(User Datagram Protocol) The TCP/IP standard protocol that allows an application program on one machine to send a datagram to an application program on another machine. UDP uses the Internet Protocol (IP) to deliver datagrams. Conceptually, the important difference between UDP datagrams and IP datagrams is that UDP includes a protocol port number, allowing the sender to distinguish among multiple destinations (application programs) on the remote machine. In practice, UDP also includes a checksum over the data being sent.

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(Round Trip Time) A measure of delay between two hosts. The round trip time consists of the total time taken for a single packet or datagram to leave one machine, reach the other and return. In most packet switching network delays vary as a result of congestion. Thus, measures of round trip times usually give averages, which may have high standard deviation.

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