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release notes.txt
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Norton Internet Security 2001 3.0 Family Edition
Norton Internet Security 2001 3.0
Norton Personal Firewall 2001 3.0
Release Notes - March 11, 2001
Copyright 1999, 2000, 2001 Symantec Corporation
All rights reserved
This document contains detailed information about some
features of Norton Internet Security and Norton
Personal Firewall. Note that the release
notes may refer to features that are not in the
product you have installed, as it covers three
products with different features.
Please also check the Read Me file for additional notes
regarding installation and uninstallation issues.
Topics include:
- Blocking ads speeds up download time
- Blocking ads can block other Web elements
- Blocking ads blocks graphical advertisements
- Blocking applications from accessing the Internet
- Blocking cookies does not prevent cookie creation
- Blocking browser type and version is off by default
- Blocking popup windows is limited
- Blocking referring Websites
- Blocking scripts only blocks scripts on Web page
- Creating Firewall Rules for N/A programs
- Firewall alerts are cached
- Incompatibility with Regclean
- Permitted sites can contain items from blocked sites
- Referring address blocking is for browser only
- Restricted account users do not see prompts
- Showing animated .gif files after blocking them
- Terminating http connections
- Hiding your computer name from the Internet
- Attacks and Auto Block
- Running the Security Assistant with Norton SystemWorks
- Auto Block and Legitimate Connection Attempts
- Internet Connection required for some operations
--------------------------------------------------------
Blocking ads speeds up download time
--------------------------------------------------------
The ad blocking feature does not block all
advertisements on the Internet, but it can speed up
download time when websites contain several ads. For
information on blocking ads not blocked by Norton
Internet Security, see the User's Guide or Help.
--------------------------------------------------------
Blocking ads can block other Web elements
--------------------------------------------------------
Blocking ads prevents specific HTML strings from being
downloaded to a Web browser. This can prevent other Web
elements from appearing in the browser in addition to
advertisements. It can also cause script errors on some
pages. If you visit a site that does not download
properly, try disabling the Ad Blocking feature.
Visit the Symantec Online Support Knowledge Bases for
information on using the event log to help you determine
why a site is blocked.
Visit http://www.symantec.com/techsupp/, or select the
Knowledge Base from the Help menu.
--------------------------------------------------------
Blocking ads blocks graphical advertisements
--------------------------------------------------------
The Norton Internet Security ad blocking feature blocks
graphical advertisements and pictures. It is not
effective against text-based or script-based
advertisements.
--------------------------------------------------------
Blocking applications from accessing the Internet
--------------------------------------------------------
Norton Internet Security restricts applications from
accessing the Internet. It does not prevent someone from
running the application.
When some programs cannot access the Internet, they may
respond by crashing, freezing, or reporting problems
with your Internet connection. The results depend on how
the program was designed.
--------------------------------------------------------
Blocking cookies does not prevent cookie creation
--------------------------------------------------------
Blocking cookies does not prevent the cookie from being
stored on your hard disk. It prevents your browser from
sending the cookie when a Website requests it. Norton
CleanSweep and other similar products contain features
to remove cookies from your hard disk.
--------------------------------------------------------
Blocking browser type and version is off by default
--------------------------------------------------------
By default, Norton Internet Security does not block
information about the type of browser you are using
because many Web sites depend on this information to
display Web pages tailored for specific browsers.
Blocking this information can cause Web page errors, or
display warnings about updating your browser.
To block information about the type and version of
browser you are using:
1. Open Norton Internet Security.
2. Click Options and click Advanced Options.
3. Under the Web tab, click the privacy tab and change
the Browser (User-agent) settings.
--------------------------------------------------------
Blocking popup windows is limited
--------------------------------------------------------
The Block Script Popups Only feature blocks the most
common methods Web sites use to open additional browser
windows, but does not block all methods. Even with this
feature turned on, you might find Web sites where pop-up
windows are not blocked.
Some Web sites, such as Microsoft's Windows Critical
Update, will not operate correctly when you block script
popup windows.
--------------------------------------------------------
Blocking scripts only blocks scripts on Web page
--------------------------------------------------------
The advanced feature to Block All JavaScript blocks any
JavaScript embedded in Web pages. However, it does not
block JavaScript found in form objects or in external
script (.JS) files.
Blocking JavaScript causes errors on Web pages that
require JavaScript for proper display or navigation, and
should only be used by advanced users.
--------------------------------------------------------
Creating Firewall Rules for N/A programs
--------------------------------------------------------
If Norton Internet Security cannot identify a program or
process that is attempting to access the Internet, it
displays the name of the process as N/A. If you create a
firewall rule for N/A programs, make sure the rule
blocks or permits the connection for a specific port or
address. If you create a rule to permit
or block N/A programs for all ports or addresses,
Norton Internet Security will use that rule for every
program it cannot identify.
--------------------------------------------------------
Firewall alerts are cached
--------------------------------------------------------
Sometimes Internet-enabled applications send requests to
several computers to contact your machine. If you are
using the Firewall Rule Assistant, you could see several
alerts. Multiple alerts are cached in Norton Internet
Security. This can cause alerts to appear even if you
close the original program that caused the alert.
Specific examples include multiplayer Internet games
like Unreal Tournament or Gamespy.
--------------------------------------------------------
Permitted sites can contain items from blocked sites
--------------------------------------------------------
When you specify a list of permitted Websites, content
from all other Websites is blocked. If a site reference
graphics or other items from other sites, these items
are blocked even though they appear to be from the same
Web site.
These are some steps you can take to reduce these
situations:
- Use domain names instead of more specific Web site
names. For example, permit the site example.com
instead of images.example.com to allow the content
from the example domain. This allows access to all the
websites within that domain, including www.example.com,
help.example.com, images.example.com or any other
sites in that domain.
- If you are viewing a permitted site and notice images
that are blocked, open the Event Log and look at the
information under the Restrictions tab. This shows the
items that were blocked from the Web site you are
viewing. Then add the blocked sites to the permitted
list so the blocked images will appear.
These steps are only useful if you are specifying which
sites are permitted. If you use the Specify Blocked
Sites option, everything that does not fall into a
blocked category is permitted.
--------------------------------------------------------
Referring address blocking is for browser only
--------------------------------------------------------
Although Norton Internet Security blocks the information
from your browser about the last Web address you
visited, it cannot block this information when it is
passed from a Web server. For example, if you visit a
site that refers you to another site on the same Web
server, the Web server might transfer the referring
information internally. This information does not come
from your browser, and is not blocked by Norton Internet
Security. These occurrences should not cause privacy or
security concern.
--------------------------------------------------------
Restricted account users do not see prompts
--------------------------------------------------------
Norton Internet Security lets you enable, block, or
prompt the user for various settings. However,
restricted account users do not receive prompts. For
restricted accounts, any item set to prompt the user is
automatically blocked without warning.
--------------------------------------------------------
Showing animated .gif files after blocking them
--------------------------------------------------------
One of the advanced options lets you prevent animated
.gif files from repeating their animation. This feature
modifies incoming .gif files to prevent them from
animating. To show the animation of a modified .gif file
again, turn off animated .gif blocking, clear your
browser's cache and revisit the Web site where you found
the file so you can download it again.
--------------------------------------------------------
Terminating http connections
--------------------------------------------------------
Norton Internet Security lets you terminate most types
of network connections from the statistics viewer, but
terminating http connections requires that you close your
Web browser software.
--------------------------------------------------------
Web Site Blocking and Browser History
--------------------------------------------------------
Most web browsers keep pages in a hard drive cache to
improve performance, and some browsers support "offline
browsing", where they download entire web pages to your
hard disk. If these pages are viewed or downloaded by
one account, they may be viewable by another account who
would normally have these pages blocked with Parental
Control. Empty your web browser's cache to solve this
problem.
--------------------------------------------------------
Hiding your computer name from the Internet
--------------------------------------------------------
In its default configuration, Norton Internet Security
and Norton Personal Firewall 2001 hides your computer
name and share information from being seen over the
Internet if you have Microsoft File & Print Sharing
enabled. This is a change from version 2000.
The ability to share the computer name is required for
some cable modem implementations, but is not necessary
for most systems. If you need to share this information
in order to connect to your internet service provider,
please review the "Compatibility with Cable Modems"
document on the Start Menu / Programs / Norton Internet
Security (or Norton Personal Firewall) / Product Support
for information on how to add this.
--------------------------------------------------------
Attacks and Auto Block
--------------------------------------------------------
When Norton Personal Firewall or Norton Internet Security
detect an intrusion attempt or port scan, it will place
the suspected attacker's computer address in the Auto
Block list (in the Personal Firewall section under
Intrusion Protection), and block all further attempts at
communication from that computer for 30 minutes. After
30 minutes, the restriction will be lifted. If you have
an attacker who repeatedly targets your system, you can
add the attacker's IP address (as shown in the logs or
the Auto Block screen) to the Restricted Zone (under the
Personal Firewall tab). This will permanently lock out
all communication from - and to - the attacker's computer.
--------------------------------------------------------
Running the Security Assistant with Norton SystemWorks
--------------------------------------------------------
If Norton Personal Firewall or Norton Internet Security
are integrated with Norton SystemWorks 2000 or 2001, the
Security Assistant cannot be launched directly from the
integrator. To run the Security Assistant, select it
from the Start Menu / Programs / Norton Internet Security
/ Security Assistant menu item.
--------------------------------------------------------
Auto Block and Legitimate Connection Attempts
--------------------------------------------------------
Auto Block is designed to block remote computers which
attempt to find holes in your security, but may sometimes
be triggered by a legitimate computer, such as one run
by your internet service provider, or a security check
like Symantec Security Check (http://security.norton.com).
If you have problems with Auto Block blocking a computer
that has a legitimate reason for probing your system, you
can click on the "Exclusions" button on the Intrusion
Protection page and add the IP address of the machine
there. If the computer is currently Auto Blocked, it
may be added to the Exclusion List by pressing a button
on the Exclusion List dialog.
NOTE: Adding a computer to the Exclusion List does not
permit any access by that computer! It only prevents
that computer from being Auto Blocked. All other
firewall security remains in place.
--------------------------------------------------------
Internet Connection required for some operations
--------------------------------------------------------
For some operations, Norton Internet Security may need
to look up domain names on the Internet. This will
require that you have an active Internet connection, or
these operations may take a long time to time out. When
running the Application Scan (from the Security Assistant
or from the Personal Firewall / Internet Access Control
pane) is one place that slowdowns may occur if there is
not an active Internet connection.
Norton Internet Security is not sending any information
about your applications at this time, it is only looking
up domain names to verify correct IP addresses.