Connecting your Macintosh to the Internet gives millions of people direct, uncontrolled access to your hard drive and data. If you do not protect your Macintosh from unwanted intrusions, you are vulnerable to an attack. A firewall provides secure technology that regulates both incoming and outgoing communications. NetBarrier is a personal firewall, which means that it protects and monitors all incoming and outgoing data on your computer.

A port allows data to enter and exit a computer. Some ports are specific while others are general.

A port is a "virtual slot'' in your TCP and UDP stack that is used to map a connection between two hosts, and also between the TCP/UDP layer and the actual applications running on the hosts.

They are numbered 0-65535, with the range 0-1023 being marked as "reserved'' or "privlileged'', and the rest (1024-65535) as "dynamic'' or "unprivileged''.

There are two types of pings. One is sent automatically by the server and the other is sent manually by a user.

Servers use the ping command to check if a connection is still active.

A ping sent by a user tells how long the signal took to go from the user's computer to the pinged computer.

The file that you downloaded from the Intego web-site appears on your desktop with a .sit extension. This is a file that was compacted with StuffIt from Aladdin Systems Inc. You need to have StuffIt Expander to open it. If you don't have StuffIt Expander, you can obtain it from Aladdin Systems at http://www.aladdinsys.com/

See the following question if you need help installing your software.

Our user manuals and how-to documents are in PDF format. They have been written and optimized for Adobe Acrobat Reader 3.0 and up.

If you are unable to open the file, it is probably because your version of Adobe Acrobat Reader is earlier than 3.0. You can download the latest version of Adobe Acrobat Reader at :

http://www.adobe.com/products/acrobat/alternate.html

- Open NetBarrier, select the About NetBarrier... menu item in the Apple menu.

- The name of the product followed by its version number appears on the first line.

Open the NetBarrier control panel, select its icon and choose in the file menu the Get Info option. There is a pop up menu next to "Show".

Select the memory option. When the memory requirements window opens (see below), select "preferred size" and increase the memory by 1000 K or 2000 K. NetBarrier does not require too much memory.

No, NetUpdate is a separate application that updates all Intego products.

See the next question for further information on how to install or replace NetUpdate.

Netupdate is an application developed by Intego to help our customers to update their software without having to search for links or files on the web.

If you cannot download NetUpdate by the application located in the menu, you can replace your old version of NetUpdate with the full install application available for download at:

http://www.intego.com/services/updates.asp

Just download the file and uncompress it with Stuffit Expander. The icon should appear on your desktop.

- Double-click on the icon and you will be asked to proceed to the installation.

- Once you have read the license and you agree to its terms, click on continue and the installation will start.

- After the installation, you will be asked to restart your computer. All older components are automatically replaced after startup.

You can now use your new version of NetUpdate, and download updates for your Intego products.

If you bought your program on or after December 1, 2000, you are entitled to a free upgrade. Just send a copy of your receipt to our sales team at sales@intego.com.

If you purchased NetBarrier 1.6 on or before November 30, 2000 and want to upgrade to NetBarrier 2.0, you must purchase an upgrade. Upgrade purchases are available on our web site at http://www.intego.com/buynow/.

No, you cannot change your language version. If you try to do it this way, your product will no longer work.

Firewalls are used for two purposes.

- to keep people (worms / crackers) out.

- to keep people (employees / children) in.

Your company's firewall protects the company's computers from the outside. NetBarrier is a personal firewall that protects your own computer from all dangers, even those from fellow users on your network who are on the same side of the company firewall as you.

If you want to protect your computer against people who are also behind your company's firewall, monitor incoming and outgoing data, use NetBarrier data filtering functions to secure some specific part of your hard drive, or use the banner filter while surfing on the Net, you can use this firewall even if your company has a firewall on its server.

No, it does not. Intego has a content filtering program that provides parental control named ContentBarrier. For further details you can consult our web-site :

http://www.intego.com/contentbarrier/

Yes, NetBarrier is compatible with Timbuktu and you can allow the connection with any machine.

- Open the NetBarrier control Panel

- Select the Firewall button on the left hand side

- Click on the Customized Option (fig. 1)

- Click on Add Set...

- The rule sets window will appear (fig. 2)

- Select Timbuktu in the list

- Click the OK button (fig. 3)

- The Timbuktu rule is visible in the customized window (fig. 4)

1	2
3	4

If you have configured the data filter option to protect sensitive information, such as your credit card number, you are protected while shopping on the Internet. You must configure this information for the data filter to work.

As an added precaution, make sure the web-site you are ordering on is also secured.

Yes NetBarrier is compatible with ContentBarrier and any other Intego products.

For further information concerning ContentBarrier http://www.intego.com/contentbarrier/

Be sure you have version 2.0.3 (or later) installed on your hard drive. Version 2.0.3 fixes a problem with the ATI Graphic Driver released with MAC OS 9.1.

Here is the link to download NetBarrier updates: http://www.intego.com/services/updates.asp

Be sure that all options in the log settings are checked.

if you are connected to a local network, check TCP/IP, general, firewall activity, network activity and Appletalk.

It is highly probable that the components are not installed correctly.

Please check that you have the following items in the corresponding folders:

• NetBarrier in the Control Panel folder
• NetBarrier CSM in the Control Strip Modules folder
• NetBarrier Lib and NetBarrier Extension in the Extensions folder.

You may also want to check if the version for each of these items is the same. You can do this by using the Get Info command in the Finder menu after having selected the appropriate items.

If you have both 1.x and 2.x components, these may cause some conflicts.

If you the above items are in their corresponding folders and all items are the same version, and you still receive the "Application corrupted" message, contact our support team at support@intego.com.

- Open your preferences folder.

- If your version is earlier than 2.0, remove the NetBarrier preferences by dragging them onto your desktop or into the wastebasket.

- If your version is 2.0 or later, locate the Intego folder in your system preferences folder. Remove the NetBarrier preferences by dragging them onto your desktop or into the wastebasket.

See the preceding question if the problem remains unsolved.

You need to adjust the following items in your configuration as shown in the illustration below:

- Verify that "I don't want any cookies sent from my computer" is not checked.

- Verify that "Brand of my computer and name of my browser" and "Last Web site visited" are not checked.

Turn off the banner filter as illustrated below.