Appendix B, Registry Entries

Appendix B

Registry Entries

Registry Editor

Catapult Server Registry Entries

Catapult Server services are configured using the Catapult Server Setup program and Internet Service Manager.

All configuration values for Windows NT are stored in a database known as the Registry. You can optionally use the Registry Editor (Regedt32.exe) to view, modify or change these values directly.

Warning Do not use Regedt32.exe as a substitute for Internet Service Manager. Values changed with Regedt32.exe will not be updated directly. You must stop and start the service to have them take effect. Changes performed using Internet Service Manager take effect immediately.

Registry Editor

The Registry Editor is an advanced tool that enables you to change settings in your system registry, which contains information about how your computer runs.

Warning You should not edit your registry unless it is absolutely necessary. (Generally, it is best to use Windows controls to change your system settings.) If you introduce an error in your registry, your computer may become nonfunctional.

To start the registry editor

Open an MS-DOS® command-prompt window.
Type regedt32.

The registry is organized with a directory tree. Registry entries are called keys. Keys can be added, modified or deleted by applications. Each key has a “class” or data type.

For more information about editing the registry, see the online Help for Registry Editor, or see your documentation for Windows NT.

If you make changes to the registry that cause your computer to stop working properly, you can restore the registry settings to the last working configuration.

To restore the registry

Use the Start button to shut down your computer
Restart in MS-DOS mode.
Change to your Windows NT directory system directory, Winnt.
Type the following commands:
- attrib -h -r -s system.dat
- attrib -h -r -s system.da0 system.dat
- attrib -h -r -s user.dat
- attrib -h -r -s user.da0
- copy user.da0 user.dat
Restart your computer.

Catapult Server Registry Entries

Domain Filtering Keys

Cache Keys

Entries for the Catapult Server services are located in the following tree branches:

Domain Filtering Keys

The Proxy domain filtering registry keys are located in:

\DoFilter

The following keys are available:

FilterType
NumDenySites
NumGrantSites

These keys are described in the table that follows.

Key

Data Type

Values

Description

FilterType

DWORD

Default	Range
0	0,1,2

0=No filters enabled.
1=Denied mode. Internet access granted to all sites except those in the filter list.
2=Granted mode. Internet access is denied to all sites except to those in the filter list.

NumberDenySites

DWORD

Default	Range
0	No limit to value.

Total number of Web sites to which the Catapult Server users have been denied entry.

NumGrantSites

DWORD

Default	Range
0	No limit to value.

Total number of Web sites to which the Catapult Server users have been granted entry.

Keys are set to their default values during installation.

Example

For example, suppose you use Internet Service Manager to set a filter. You choose to deny access to two sites, Website1, whose domain is www.website1.com, and Website2, whose domain is www.website2.com. When you set the Filters property to Granted and enter "www.website1.com" and "www.website2.com", the registry is configured as follows. FilterType is set to 1, the NumberDenySites is set to 2, and two new keys are created: DenySites and GrantSites. DenySites will be equal to www.website2.com www.website2.com.

Cache Keys

The Proxy cache registry entries are located in:

The following keys are available:

ActiveRefreshAggressiveness
Age Factor
CacheByDefault
CleanupFactor
CleanupInterval
CleanupTime
DebugFlag
Enable Protect
Enable TTL
FreshnessInterval
Max Interval Units
Max Interval Value
Max. Protection Time (minutes)
MaxObjectSize
Min Interval (minutes)
Persistent
Protection Factor

These keys are described in the table that follows.

Key

Data Type

Values

Description

ActiveRefreshAgressiveness

REG_DWORD

Default	Range
2	0-99999999

A larger number will refresh more items in the cache more often. This feature is on by default.

Age Factor

REG_DWORD

Default	Range
14	0 - 100

Percentage of life extension for a non-modified object.

CacheByDefault

REG_DWORD

Default	Range
1	0,1

When set to 0, can disable caching for all URLs except for those explicitly marked as cacheable in the URLData section.

CleanupFactor

REG_DWORD

Default	Range
19	0 - 100

Percentage of data to clean up.

CleanupInterval

REG_DWORD

Default	Range
15180	0 - 9999

Seconds after which a cleanup process is started.

CleanupTime

REG_DWORD

Default	Range
0

DebugFlag

REG_DWORD

Default	Range
0

Enable Protect

REG_DWORD

Default	Range
1	0,1

Enable/Disable the unavailable server protection mechanism

Enable TTL

REG_DWORD

Default	Range
1	0,1

Enable the time-to-live mechanism

FreshnessInterval

REG_DWORD

Default	Range
15180

Minutes that an object is kept in the cache before update.

Max Interval Units

REG_DWORD

Default	Range
4

0 - seconds
1 - minutes
2 - hours
3 - day
4 - week

Max Interval Value

REG_DWORD

Default	Range
1

Max. Protection Time (minutes)

REG_DWORD

Default	Range

Maximum time in minutes to shadow a URL from an unavailable server

MaxObjectSize

REG_DWORD

Default	Range
0

Min Interval (minutes)

REG_DWORD

Default	Range

Minimum interval in minutes to validate URL

Persistent

REG_DWORD

Default	Range
1

Protection Factor

REG_DWORD

Default	Range
14

Factor of TTL to shadow an unavailable server