Do Du System Configuration Guide

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2013 Fannie Mae. Trademarks of Fannie Mae. DO/DU System Configuration Guide

System ConfigurationGuide For DesktopOriginator/DesktopUnderwriter

July 2013


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2013 Fannie Mae. Trademarks of Fannie Mae. DO/DU System Configuration Guide 2

2003-2013 Fannie Mae. All Rights Reserved.

Desktop Originator, DO, Desktop Underwriter, and DU are registered trademarks of Fannie Mae. Java andJavaScript are registered trademarks of Sun Microsystems, Inc. Microsoft, Internet Explorer, and Windows

Vista are registered trademarks of Microsoft Corporation. ZoneAlarm is a registered trademark of Check PointSoftware Technologies Ltd. Norton Internet Security is a trademark of Symantec.


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Contents

Chapter 1: Introduction ...................................................................................................................... 5

Chapter 2: Defining Your Browser Settings..................................................................................... 7Supported browser version ................................................................................................................... 7Supported operating system versions ................................................................................................... 7Setting your browser options for Internet Explorer 6 ............................................................................. 7

Accessing the Internet Options screen .............................................................................................. 8Allowing specific sites to use cookies ................................................................................................ 8Setting pop-up blocker policy options .............................................................................................. 10Maintaining temporary Internet files ................................................................................................ 11Verifying the Content Advisor setting .............................................................................................. 13Setting Advanced Web options ....................................................................................................... 14Settings for Windows XP with Service Pack 2 ................................................................................. 15

Setting your browser options for Internet Explorer 7 and Windows Vista ............................................ 16

Accessing the Internet Options screen ............................................................................................ 16Defining trusted sites ....................................................................................................................... 17

Allowing specific sites to use cookies .............................................................................................. 18Setting pop-up blocker policy options .............................................................................................. 19Maintaining temporary Internet files ................................................................................................ 21Verifying the Content Advisor setting .............................................................................................. 23

Chapter 3: Support for Connection Types ...................................................................................... 25DNS configuration ............................................................................................................................... 25Supported Internet connection types .................................................................................................. 25Non-Supported Internet connection types ........................................................................................... 25


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Chapter 1: Introduct ion

All Fannie Mae Web-based applications require a standard Web browser configuration. This document isfocused on the browser settings that are required for Desktop Originator and Desktop Underwriter

(DO/DU).

There are a number of browser settings that will help to ensure the optimal performance of DO/DU. Thisdocument provides the most common settings you can check to ensure you meet the requirements for DO/DU.If you find that your browser configuration does not meet the DO/DU requirements, you can use this document

to help you troubleshoot and configure your browser settings.

Important: If you access DO/DU through a loan origination system (LOS), refer to the LOSs Web browserrequirements.


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Chapter 2: Defining Your Browser Settings

Supported browser version

To facilitate optimal DO and DU performance, the supported browsers are

Microsoft Internet Explorer 6, Service Pack 1 and Internet Explorer 7.

Important: Fannie Mae periodically updates its equipment and software requirements. For information aboutthe latest requirements, refer to theTechnology Requirements.We will work to keep our customers informedabout changes to our equipment and software requirements. To make sure you stay up-to-date with the latestchanges or updates, please consider subscribing to theSingle-Family Selling News email.

Supported operating system versions

As of March 2007, DO/DU can be accessed on computers that run the following operating systems:

Windows XP Professional Service Pack 2 Windows XP Home Edition Service Pack 2

Windows Vista

NOTE: Note: If your operating system is not listed here, it is no longer supported or is not compatible. For

information on Microsoft's support policy regarding the Windows family of desktop operating systems, visit

Microsofts website.

Important: If you access DO/DU through an LOS, refer to the LOSs supported operating systems.

Setting your browser options for Internet Explorer 6

For optimal performance of DO/DU, your Web browser must be set to have Java and JavaScript enabledand to accept cookies. In addition, there are a number of other browser settings that will help to ensure theoptimal performance of DO/DU on your computer.

This section explains how to achieve the required browser settings. If you are having problems accessingDO/DU, use this section to verify your settings and to perform other maintenance actions.

NOTE: Note: This section assumes that you have Microsoft Internet Explorer 6, Service Pack 1 installed on

your computer.

Important: If you use other privacy software (for example, ZoneAlarm or Norton Internet Security) consultthe manufacturers documentation or Web site for instructions on settings that may block JavaScript, cookies,and pop-ups.
https://www.fanniemae.com/content/technology_requirements/technology-requirements.pdfhttps://www.fanniemae.com/content/technology_requirements/technology-requirements.pdfhttps://www.fanniemae.com/content/technology_requirements/technology-requirements.pdfhttps://www.fanniemae.com/s/profile/notificationhttps://www.fanniemae.com/s/profile/notificationhttps://www.fanniemae.com/s/profile/notificationhttp://support.microsoft.com/lifecycle/?LN=en-ushttp://support.microsoft.com/lifecycle/?LN=en-ushttp://support.microsoft.com/lifecycle/?LN=en-ushttps://www.fanniemae.com/s/profile/notificationhttps://www.fanniemae.com/content/technology_requirements/technology-requirements.pdf


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Accessing the Internet Options screen

All Web settings in Microsoft Internet Explorer 6 are located on the Internet Options screen. To display theInternet Options screen, click Toolsin the main menu, then click Internet Options.

Al lowing specific sites to use cookies

Use the following steps to allow your browser to accept cookies for specific Web sites, which is recommended

for optimal performance of DO/DU:1. Click the Privacytab on the Internet Options screen, then click Sites.


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2. The Per Site Privacy Actions screen appears. Type the name of each Fannie Mae site that you want toaccess in theAddressof Web sitefield, then clickAllow. Enter www.fanniemae.com.

3. After you click Allow, the site you entered is displayed in the Managed Web sites section with the settingyou specified. When you have finished adding Web sites, click OK.

NOTE: Note: You can view information on the fanniemae.com Web site even if your browser does not

accept cookies. However, because DO/DU is accessed through these Web sites, and cookies arerequired

by DO/DU, you will need to ensure that your browser is set to accept cookies from these two Web sites.


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Setting pop-up blocker policy options

Use the following steps to set pop-up blocker policy options that are recommended for optimal performance ofDO/DU:

1. Click the Privacy tab on the Internet Options screen, then click Settings.

2. The Pop-up Blocker Settings screen appears. Type the name of each Fannie Mae site that you want toaccess in theAddress of Web si te to allowfield, then click Add. Enter www.fanniemae.com .


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3. After you clickAdd , the site you entered is displayed in the Allowed sites section. When complete, clickClose.

Maintaining temporary Internet files

Microsoft Internet Explorer 6 stores temporary Internet files and cookies on your computer. If the other sectionsin this document did not help you to access DO/DU successfully, you may need to remove the existing cookiesand temporary files from your computer so that you can start fresh. Use the following steps to delete thesecookies and temporary Internet files:

1. Click the Generaltab on the Internet Options screen, then click Delete Cookies.


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2. A confirmation message appears. Click OK.

3. Click Delete Fileson the Internet Options screen.

4. A confirmation message appears. Check the Delete all offline contentoption, then click OK.


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5. Click Settingson the Internet Options screen.

6. The Settings screen appears. Click Every visit to the page and click OK.

Verifying the Content Advisor setting

The Content Advisor setting must be set to enable content. To verify this setting, click the Contenttab on theInternet Options screen. Make sure that the Enable button appears under this heading. If Disable appears

instead, contact your system administrator for assistance.


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Setting Advanced Web opti ons

This section contains the advanced settings that are recommended for working with DO/DU. Click the

Advanced tab on the Internet Options screen, then match the following settings. You will need to scroll throughthe entire list to match all the settings.

NOTE: Note: If the Advanced tab is missing from your Internet Options screen, contact your system

administrator for assistance.


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Settings for Windows XP with Service Pack 2

Browsing

0Always send URLs as UTF-8 (requires restart)

0Automatically check lor Internet Explorer updates

0Close unused folders in History and Favorites (requires restart)

0Disable script debugging

0Display a notification about every script error

0Enable lolder view lor FTP sites

0Enable Install Dn Demand (Internet Explorer)

0Enable Install Dn Demand (Other)

0Enable offline items to be synchronized on a schedule

0Enable page transitions

0Enable Personalized Favorites Menu

0Enable thirdparty browser extensions (requires restart)

0Enable visualstyles on buttons and controls in web pages

0Force offscreen compositing even under TerminalServer (req

0Notily when Add-ons disabled

0Notily when downloads complete0Reuse windows for launching shortcuts

0Show lriendly HTTP error messages

0Show lriendly URLs

0Show Go button in Address bar

lii1JUnderline links

0Always

0Hover

0Never

0Use inline AutoComplete

0Use Passive FTP (lor lirewall and DSL modem compatibility)

0Use smooth scrolling

@HTTP 1.1 settings0Use HTTP 1.1

0Use HTTP 1.1 through proxy connections

Java(Sun)

0Use Java 2 v1.4.2_041or (requires restart)

[ElMicrosolt VM0Display Java Applets Blocked dialog

Security

0Allow software to run or installeven if the signature is invalid

0Check for publisher's certificate revocation

0Check for server certificate revocation (requires restart)

0Check for signatures on downloaded programs

0Do not save encrypted pages to disk

0Empty Temporary Internet Files lolder when browser is closed

0Enable Integrated Windows Authentication (requires restart)

0Enable Prolile Assistant

0UseSSL2.0

0UseSSL3.0

0Use TLS 1.0

0Warn about invalid site certificates

0Warn if changing between secure and not secure mode

0Warn if forms submittalis being redirected


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Setting your browser options for Internet Explorer 7 and Windows Vista

For optimal performance of DO/DU, your Web browser must be set to have Java and JavaScript enabled andto accept cookies. In addition, there are a number of other browser settings that will help to ensure the optimalperformance of DO/DU on your computer.

This section explains how to achieve the required browser settings. If you are having problems accessingDO/DU, use this section to verify your settings and to perform other maintenance actions.

NOTE: Note: This section assumes that you have Microsoft Internet Explorer 7 or Windows Vista installed

on your computer. Microsoft Internet Explorer 7 is the browser used in Windows Vista.

Important: If you use other privacy software (for example, ZoneAlarm or Norton Internet Security) consult themanufacturers documentation or Web site for instructions on settings that may block JavaScript, cookies, andpop- ups.

Accessing the Internet Options screen

All Web settings in Microsoft Internet Explorer 7 are located on the Internet Options screen. To display the

Tools menu bar, make sure a check mark appears next to Menu Bar in the Tools menu.

To display the Internet Options screen, click Toolsin the main menu, then click Internet Options.


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Defining trusted sites

Use the following steps to add DO and DU as trusted sites, which we recommend for optimal performance of

DO/DU:

1. Click the Securitytab on the Internet Options screen, click Trusted Sites, then click Sites.

2. The Trusted sites screen appears. Type the name of each Fannie Mae site that you want to access in theAdd this website to the zonefield, then clickAdd. Enterhttps://desktopunderwriter.fanniemae.com andhttps://desktoporiginator.fanniemae.com .
https://desktopunderwriter.fanniemae.com/https://desktopunderwriter.fanniemae.com/https://desktopunderwriter.fanniemae.com/https://desktoporiginator.fanniemae.com/https://desktoporiginator.fanniemae.com/https://desktoporiginator.fanniemae.com/https://desktopunderwriter.fanniemae.com/


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Al lowing specific sites to use cookies

Use the following steps to allow your browser to accept cookies for specific Web sites, which are

recommended for optimal performance of DO/DU:

1. Click the Privacytab on the Internet Options screen, then click Sites.

2. The Per Site Privacy Actions screen appears. Type the name of each Fannie Mae site that you want to

access in theAddressof Web sitefield, then clickAllow. Enter fanniemae.com.


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3. After you click Allow, the site you entered is displayed in the Managed Web sites section with the settingyou specified. When you have finished adding Web sites, click OK.

NOTE: Note: You can view information on the fanniemae.com Web site even if your browser does not

accept cookies. However, because DO/DU is accessed through these Web sites, and cookies arerequired

by DO/DU, you will need to ensure that your browser is set to accept cookies from these two Web sites.

Setting pop-up blocker policy options

Use the following steps to set pop-up blocker policy options that are recommended for optimal performance ofDO/DU:

1. Click the Privacytab on the Internet Options screen, then click Settings .


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2. The Pop-up Blocker Settings screen appears. Type the name of each Fannie Mae site that you want toaccess in theAddress of websiteto allow field, then clickAdd . For example, typewww.fanniemae.com .

3. After you click Add, the site you entered is displayed in the Allowed sites section. When complete, clickClose.


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Maintaining temporary Internet files

Microsoft Internet Explorer stores temporary Internet files and cookies on your computer. If the other sections

in this document did not help you to access DO/DU successfully, you may need to remove the existing cookiesand temporary files from your computer so that you can start fresh. Use the following steps to delete thesecookies and temporary Internet files:

1. Click the Generaltab on the Internet Options screen, then click Delete.

2. The Delete Browsing History screen appears. To delete temporary Internet files, click Delete fi les.


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3. A confirmation message appears. Click Yes.

4. To delete cookies, click Delete cookies.

5. A confirmation message appears. Click Yes.


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6. When complete, click Close.

Verifying the Content Advisor setting

The Content Advisor setting must be set to enable content. To verify this setting, click the Contenttab on the

Internet Options screen. Make sure that the Enablebutton appears under the Content Advisor section. If itdoes not, contact your system administrator for assistance.


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Chapter 3: Support for Connection Types

DNS configuration

The Desktop Originator and Desktop Underwriter URL Names are resolvable across the Internet whether youare routing traffic through a dedicated circuit to Fannie Mae or through the Internet.

The following DNS practices should be observed to maintain the reliability of your connections to Fannie Mae:

Use one DNS server to resolve all queries to Fannie Mae. This server should be able to dorecursive DNS queries and another DNS server should be used only if the first one fails to respond.

If at all possible, do not round robin DNS queries to multiple DNS servers.

Allow DNS to perform queries for address resolution from the authoritative source and honor thedefault Time To Live (TTL).

To avoid application problems, do not cache the DNS resolution beyond 60 seconds.

Supported Internet connection types

The following Internet connection types are supported by DO/DU:

Customer internal Internet service provider (ISP)

Customer external ISP

Cable modem

DSL modem

Fiber Modem (modem provided for fiber-optic internet service)

Non-Supported Internet connection types

The following Internet connection types are not supported by DO/DU:

Satellite modem

Wireless connection

Documents

Do Du System Configuration Guide