Home > Articles > Software Development & Management

Exchange 2000 Security

  • Print
  • + Share This
Like this article? We recommend


One of the most powerful security configuration features of Windows 2000 is group policy. Group policies provide a mechanism for enforcing security settings across groups of computers, regardless of the user who logs onto that computer, or groups of users, regardless of the computer used for logon. Policies contain entries that specify security permissions for a wide variety of computing functions, ranging from restricting the use of floppy drives to encrypting or signing communication. Group policies can be applied to Windows 2000 sites, domains, and Organizational Units, or can be used in combination. Each site, domain, or OU can have multiple policies defined at the same time. Site policies are applied first; then domain and then OU policies are applied, each overwriting any conflicting settings. For this reason, policies should be planned carefully to avoid unexpected results after all policy levels have been applied. It is also important to mention that each computer policy must be downloaded to the target computers during startup, and each user settings policy must be downloaded during logon. The time required to process policies (machine startup and logon) is directly related to the number of policies being applied and the number of settings in each policy.

You can use the security configuration options within policies to help secure your Exchange implementation. For example, you can specify that Exchange servers encrypt all communication with clients that are capable of supporting encryption, or you can require Kerberos authentication between clients and Exchange servers.

Site-based policies are defined in the Active Directory Sites and Services snap-in. Group policies are defined in the Users and Computers snap-in by right-clicking the target domain or OU and choosing Properties. The Group Policy tab contains all policy objects that apply.


Like all other objects in the Active Directory, group policy objects can be secured using access control lists. Policies have the potential for large-scale impact in your organization, so be judicious when assigning permissions that will allow modification to group policy objects.

To add a new policy, choose New, type a descriptive name for the policy, and then click the Edit button. Several of the configuration options within the Group Policy objects do not relate to security, but several security settings are available. Configuration of these settings will depend on your computing environment and your level of security tolerance. For example, in a pure Windows 2000 environment, all client and server communication can be encrypted to protect data in transmission. With down-level or non-Windows clients, this might not be possible. In addition, some organizations might not be concerned about communication between internal systems, only computers outside of the corporate network.

Security Templates

In an effort to simplify the application of Group Policies, Windows 2000 is equipped with security templates. These templates are preconfigured policy settings for various network situations. For example, the HISECWS.INF template can be used as a starting point for applying a group policy that defines a highly secured workstation. As expected, the highly secured workstation policy includes digital signing and encryption of network communication, not displaying the last logged-on user, disconnecting idle sessions, and handling password requirements such as minimum character length, expirations, and password history. Applying these settings within your organization can assist in maintaining a secure messaging system. If necessary, you can create custom policy templates to apply against groups of Exchange servers or Exchange clients with special security needs.

To apply a security template, open the group policy object and navigate to Computer Configuration, Windows Settings. Right-click Security Settings and choose Import Policy. By default, security policy templates are stored in \WINNT\SECURITY\TEMPLATES. The default templates are outlined in Table 1. Highlight a template file (INF) and choose Open. After the template is applied, you can modify any of the options that are selected or ignored.

Table 1-The Default GPO Templates

Template Name



Basic domain controller: Default settings for Windows 2000 domain controller. Reverts server to the same configuration as a new installation, with the exception of User Rights and Group Membership.


Basic server: Default settings for Windows 2000 server. Reverts server to the same configuration as a new installation, with the exception of local User Rights and Group Membership.


Basic workstation: Default settings for Windows 2000 professional. Reverts workstation to the same configuration as a new installation, with the exception of local User Rights and Group Membership.


Compatible workstation: Relaxes default security settings so that earlier applications can run effectively. Required for Office 97. Can be applied to both Windows 2000 standalone servers and workstations.


Secure domain controller: Increases security settings in account policies, auditing, and the Registry.


Secure workstation: Increases security settings in account policies, auditing, the Registry, and removes all accounts from the Power Users group. Can be applied to both Windows 2000 workstations and standalone servers.


High security domain controller: Highest security configuration that can be used only in native mode. All communication is sent signed and encrypted. Results in an incapability to communicate with most down-level Windows clients.


High-security workstation: Highest security configuration that requires all communication to be signed and encrypted. Modifies security configuration for Power Users to limit unsecure activities such as the installation of non-Windows 2000 certified applications. Can be applied to both Windows 2000 workstations and standalone servers.


No Terminal Services SID—Used to remove user's Terminal Services SID from the file system and Registry. This process ensures that Terminal Server users follow the same security configuration policy as regular users.


Optional components for servers: Security settings for optional components that can be selected during setup or Add/Remove programs. Can be applied to all Windows 2000 servers.


Optional components for workstations: Security settings for optional components that can be selected during setup or from Add/Remove Programs.


Policy settings can be overwritten by other policies that are applied later in the list. To prevent policy settings from being overwritten by another policies settings, highlight the policy and choose the Options button. From here, you can specify No Override to ensure that the Group Policy settings are not modified by subsequent policies. Be sure that you understand the implications of this setting on the group policy architecture before choosing to use it.

  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020