Things You Should Know About Web Application Development

Web applications are examples of the development that Internet has under gone ever since its inception. These are sophisticated tools that are utilized for the success of a web business. Web application development is not an easy task. It has to undergo a series of actions that need be accomplished for the success of the … Continue reading “Things You Should Know About Web Application Development”

Web applications are examples of the development that Internet has under gone ever since its inception. These are sophisticated tools that are utilized for the success of a web business. Web application development is not an easy task. It has to undergo a series of actions that need be accomplished for the success of the application. Let us now gather some idea about the whole concept of site application development.

To begin with, it is first important to understand, who exactly requires these application developments. Web application development is the requirement of any website that is planning to take a global reach. Web masters who wish to give a power boost to their websites, must include some of this technologically upgraded web applications and enjoy their results.

Any business who is willing to do business across the globe over secured and private network can make use of web application development in their website. The fact that these applications are protected under passwords and gateways, keep them safe and personal. Simple websites who store some user information in their database to bank sites that carry out important transactions all require the advanced technology of application development.

Selection of the right kind of project is the most important thing while developing applications. The process of web application developments are generally divided into three main stages, the user service, the business service and the data service. While you are choosing an application for your websites, make sure that you do a assessment of your resources, technical skills and publishing abilities. Fix your budget and divide it into the cost you will spend on designing, development and delivery of the project.

The four phases in which web application development [http://www.rupizmedia.com/web-applications] is divided are, firstly, drawing a presumed layout of the project that includes the nature and direction of the project. Secondly, chalking out of the entire project plan, thirdly, developing the project as per requirement and finally, testing the project for stability. All these stages are extremely important to make sure that the application development process of your site is perfectly coordinated and achieve results.

The Migration of Exchange 5.5 to 2003 Server

OBJECTIVE:

Electronic messaging services within a company remains a mission critical application and its implementation is a vital part to the conduct of everyday business strategies, needs and goals. Within the organization the business requirements now include the safeguard of electronic content retention best practices. Therefore, it is important to see to it that a migration project is undertaken with a lot of care. Read this document carefully to gain a good understanding of not only the pre-requisites but also the migration path from mixed to native mode.

The delivery of mail is a challenging task which includes the support of thousand of users within the corporation environment. The new infrastructure must set up procedures to respect compliance, corporate governance and internal regulatory policy enforcement. Affirmatively, business guidelines and principles for the preservation of electronic mail within the corporate body must now be taken into consideration. This requires that companies learn how to standardize their projects to meet not only corporate needs but also judicial demands.

The granularity of server management depends upon a business model that will sustain the rationalization of all of the mechanics of the migration project from Exchange 5.5 to Exchange 2003. It is understood that the migration will introduce many changes upon the business model. It is to be undertaken by keeping the infrastructure model and design flexible without the impairment of performance.

SETUP PROCEDURES FOR THE MIGRATION:

MANAGING THE MIGRATION:

o Domain controller location. You’ll need at least one Domain Controller in each office that has an Exchange 2003 server

o Global Catalog server location. Need at least one Global Catalog server in each office that has an Exchange 2003 server. This can also act as the local Domain Controller. The simplest way to accomplish this is to make all branch office DCs into GCs. Microsoft recommends a minimum of one GC server for every four Exchange processors, not servers.

o DNS configuration. Make certain that DNSLint shows no errors, other recommended tool KILLADCGN.EXE to verify chkds Checkdisk and chkdsro (CheckReplicationOrphan objects in AD);

o Active Directory Native Mode. Important Notice: The Active Directory domain containing the Exchange servers must be in Native Mode so that you can use Universal Security Groups for e-mail distribution.

o Replication or authentication problems. Verify Event Viewer to have no errors from directory service replication, KCC topology calculations, or authentication errors originating from domain controller accounts. You can use the EventCombMT utility (download from Microsoft). EventCombMT is part of the Account Lockout and Management and Lockout

o Domain Prerequisites Considerations : Name Resolution, ADC Staging OU, ADC Staging, Verify trusts issues, Replication topology

Verify Current Exchange Organization Roles and Distributions:

O Exchange server version

O Site configuration

O Site connectors and Directory Replication connectors

O Internet connectors

O Unsupported connectors

O Key Management Services

O Compatible backup

O Antivirus and Antispam software

O Patches

O E-mail dependent applications

O Exchange 2000 instant messaging

Pre-Requisites and Precautions before the installation:

o Security patches (ISDS for Exchange)

o In order to preserve Exchange 5.5 Public Folder Access Control Lists (ACLs) after mailboxes or distribution lists are moved between sites the Administrator will need to install an Exchange 5.5 DS/IS hotfix (http://support.microsoft.com/?kbid=836489) on every Exchange 5.5 Public Folder server prior to moving mailboxes or DLs between sites.

o The Consistency Adjuster must be run for each server in each site.

o Windows service packs (SP4.0 for Exchange 5.5 while Exchange 2003 is on SP2.0 this information must be revised on the website of Microsoft for the latest updates)

o Considerations – Mobile Information Server (MIS) –To preserve functionality for existing mobile users during the Exchange 2003 deployment, keep at least one MIS 5.5 servers running as you migrate to Exchange 2003.

o Instant Messaging (IM) and Chat –This functionality has been replaced by Live Communication Server (LCS) in Exchange 2003.

o CcMail connector — If you are running ccMail (mainly for Lotus Mail Agents) in the organization along with Exchange, it’s time for a final transition upon the migration path to Exchange 2003.

o Backup, Antivirus, and Antispam software compatibility issues and third party software issues

o ADC upgrades considerations – You must upgrade the ADC servers to Exchange 2003 ADC prior to introducing any Exchange 2003 servers into the organization. The ADC upgrade modifies the schema, so make sure that the Schema Master is available.

o Front-end/back-end upgrades. – If you have an existing deployment such as for example, Exchange 2000 that uses a distributed architecture, upgrade the front-end servers first and then upgrade the backend servers.

PRE-MIGRATION NORMALIZATION ISSUES:

O Install service packs (verify Microsoft website for the latest versions)

O Normalize mailboxes (size sum check)

O Verify public folders permissions (permissions will affect the RUS)

OMigration Account Rights Ensure the account(s) used for the migration process are given ‘Service Account Admin’ rights at the Organization, Site and Server level.

OSimple-Synchronization Ensure the Simple-Sync replication schedule is set to every twelve hours (12 hours) – Exdeploy.hta. (Deployment tools)

Considering ultimate performance:

o Domain Upgrade

o Upgrade the current PDC to Windows Server 2003.

o Install additional Windows Server 2003 domain controllers

o Shift the domain and forest to Windows Server 2003 functional level

Network Infrastructure Considerations:

o Traffic patterns

o Outages

o Remote users

o Routing groups

Costs Topology:

o Server software

o Client Access Licenses (CALs)

o Additional personnel

o Training

o Client software

Additional Networking Considerations:

o Directory service connection failures

o Inability to access public folders

o Inability to replicate public folders with legacy Exchange

o Incompatible historical backups

o Hardware failures

o Software compatibility failures

Considering Final Networking Objectives:

o No service interruptions

o Single mailbox-enabled account for each user

o Retain existing mailbox and public folder permissions.

o Fastest possible introduction of new features

o Maximize existing hardware

Domain Prerequisites Considerations: Name Resolution, ADC Staging OU, ADC Staging, Verify trusts issues, Replication topology. ADC, DcDiag, NetDiag, AD Snapshot, Log Files, Event Viewer Security, Application and System Logs

NB*: Remove Internet Explorer Enhanced Security. ADC Setup will make extensive use of Internet files (.html, .hta, etc.). Windows Server 2003 has a feature called Internet Explorer Enhanced Security that forces a security launched wizard. Remove this feature from the server for the duration of the ADC and Exchange setup.

1. Launch Control Panel.

2. Open the Add/Remove Programs applet.

3. Click Add/Remove Windows Components

4. Uncheck the Internet Explorer Enhanced Security Configuration option

5. Click Next to accept the change.

Primary Reports and Log Files verifications:

o DSConfigSum. This test reports the total number of sites and the number of servers in each site.

o DSObjectSum. This utility reports the total number of public folders, distribution lists, distribution lists with hidden membership, and custom recipients.

o UserCount. This test reports the total number of recipients (users) in the organization, broken down by site.

o VerCheck. This test verifies that you have the right Exchange version and service pack level on your Exchange servers.

o NB*: The main log file for the deployment is Exdeploy.log. It shows the result of each test performed by DSScopeScan.

INSTALLATION CONTROLS:

The Extending of the Active Directory Schema:

/Forestprep switch is used to extend the Active Directory schema.
§ Will modify the Active Directory Schema to include new attributes and classes used by Exchange 2003 and also installs the top-level objects for a placeholder organization tree in the Configuration Naming Context in the Active Directory forest.

Preparing the Windows Server 2003 Domains to Support Exchange Server 2003:

/Domainprep It will prepare the domains that will host Exchange servers or mailbox-enabled users
§ This creates objects in the Active Directory domain that represent Exchange service accounts, public folders, and groups that represent Exchange servers in the domain and the enterprise.

It will configure the Recipient Update Service parameters responsible for keeping Exchange address lists up-to-date and for creating proxy addresses for users based on recipient policy addressing configuration.

NB*: Recipients are Active Directory objects that have messaging capabilities. The object itself does not receive messages. The messages are not stored in Active Directory. Instead, they can reside in a mailbox on an Exchange server, in a public folder, or in another messaging system.

How these objects work:

When the proper credentials are sent to the domain controller for the user object, the contents of the mailbox become available to the e-mail client like Outlook (in the inbox of the user).

It will also create the Exchange Server 2003 specific groups (permissions) that allow Exchange services to run without a service account.

Domainprep will create two new groups:

a) Exchange Domain Servers

b) Exchange Enterprise Servers

Utilities to Run to verify the settings of the Organization:

1) OrgPrepCheck

2) OrgCheck

3) PolCheck

OrgPrepCheck: Verifying the Organization Settings with OrgPrepCheck. To validate the Forestprep and Domainprep utilities were functionally successful. The OrgPrepCheck utility is found via the Exchange Deployment Tools and is a recommended way of determining whether it is safe to proceed with the migration process.

OrgCheck: This test is made to verify that the Setup created the proper Exchange objects in the Configuration naming context and Domain naming context. By making sure that the Exchange Domain Servers group, Exchange Enterprise Servers group, and Exchange Services group exist. It also will verify that the schema changes are propagated and that it can find a Global Catalog server in the same site as the ADC server.

PolCheck: This test queries each domain controller in the domain to determine if the Exchange Enterprise Servers group has been given the Manage Auditing and Security Logs privileges. If the changes have not been created it is possible to make use of Active Directory Sites and Services to force replication to the affected problematic Domains to run OrgPrepCheck again.

Manage the (ADC) Active Directory Controller:

Do not make use of the ADC that comes on the Win 2000 or Win 2003 Setup CD. These specific versions of ADC do not map special attributes required by Exchange recipients and public folders. If you have already installed the operating system version of the ADC, remove it before installing the Exchange version. Also, unlike the Exchange files themselves, you can do the initial installation of the ADC using the Exchange service pack files. The ADC uses LDAP to query and update servers. The ADC stores configuration parameters in Active Directory objects called Connection Agreements (CAs). A CA defines object types for the ADC to copy, the source and target containers for the objects, a replication schedule, and credentials to use for making inter-server replication connections between sites.

Failed Over Principle: The (ADC) Active Directory Connector has the capacity to delete objects in both directories, as a pre-migration rule and precaution the data should be stored. This failed over principle is important for if things go wrong during the migration an authoritative restore must be performed with the NTDSUTIL utility of the Active Directory Database.

Fail Over practices for recovery purposes during the migration:

This particular tool is going to provide a fail over practice which is the standard approach to perform database maintenance of Active Directory

– managing of single master operations

– managing of the metadata in regards to the Domain Controllers

Found in systemrootSystem32

May also perform the restore from Backups

CONFIGURING THE ACTIVE DIRECTORY CONNECTOR (ADC):

Step 1: Before installing the ADC the Administrator must create or choose a user account that will be used to run the ADC service and manage the (CA) connection agreements.

Step 2: Permissions rights for the (DC) Domain Controller: This account needs to be added to the Administrators group in the domain if the ADC is installed on a domain controller.

Step 3: Permissions rights for a Member Server: This account needs to be added to the local Administrators group. Must standardize the rights on both sides 5.5 Admin and 2003 server by adding the service accounts from both administrative accounts to gain the proper credentials (service account Admin group)

Step 4: To install the ADC there are two (2) options ADC Setup from the Auto Run menu, or simply invoke the setup from the Exchange Deployment Tools.

Step 5: Before building the installation of the (CA) connection agreements the Administrator must configure the Attribute replication, account-matching rules, diagnostic logging properties and replicating directory entries. (Very important)

Step 6: Once the ADC is installed with its account credentials and services it will be time to configure the connection agreement (CA) and to begin synchronizing the Active Directory and Exchange 5.5 directories.

VERIFY THE CONNECTIVITY WITH ACTIVE DIRECTORY:

Run the Exchange 2003 SP1 version of exdeploy.exe with the following switches to test the ADC configuration.

%pathname%exdeploy.exe /t:ADCCheck /p:%logpath% /s:

o Initial ADC Attribute Copy , ADC-Global-Names Attribute Creation

o NT Account Migrations -Invalid User Accounts , Do not Enable the Disabled User Objects

o Multiple Mailbox Owners (NTDSNoMatch) set an exclusion standard on the account

o Active Directory Account Cleanup Wizard

o ADC and Distribution Lists – Automatic Security Group Upgrades

o Distribution List Membership

o ADC Setup Permissions – ADC Server Selection – ADC Service Account Selection

Synchronization: The connection agreements (CA) in the ADC are necessary to synchronize directory entries between the Exchange 5.5 and Exchange Server 2003 systems.

Dispositions: Can be installed on a Member Server or on the 1st Exchange 2003 Server installed.

Implementation of CA: At this point you can choose to implement one or more (CA) connection agreements within the organization. It must be done because of the migration process for it will not sustain issues of fault tolerance or load balancing. For managerial purposes of the migration installation procedures the best practice is to install a single ADC with one connection agreement for each Exchange 5.5 site.

Site Replication: The 5.5 Exchange Server and the installed ADC must be on the same physical network segment.

Permissions: The rights must be Schema Admin and Enterprise Administrator both are required to install the ADC.

Installation Process: Allocate at least two hours for the replication of about 5,000 objects within a single direction. But, the length of time for replication really varies on the number of
Connection Agreements that is present and on the recipient containers on the populated attributes and on the actual directory objects.

SYNCHRONIZATION BY USING THE ADC TOOL:

o ADC Tools: Simplify the process of testing prerequisites and installing Connection Agreements. It will synchronize the active directory forest with the Exchange 5.5 directory during the migration process. Schema changes will now be fully replicated so that every domain is properly updated to include the necessary Exchange objects for the migration.

o Tool Settings: This step is to specify the name of the Exchange 5.5 server to use for data collection and the location for the ADC logs.

o Data Collection: This step ultimately will run a suite of utilities that scans both Active Directory and the legacy Exchange directory service to find parameters that will be synchronized by the ADC.

o Connection Agreement Wizard: This step is used to create Connection Agreements that define the replication endpoints of the ADC and determine how attributes will be mapped between the endpoints.

o Final Checks: To check the Active Directory users to make sure the Exchange attributes appear in their properties using the Active Directory Users and Computers.

OBJECT DELETION WITH THE ADC:

1) If you delete a mailbox-enabled user in Active Directory, the ADC deletes the corresponding mailbox in legacy Exchange.

2) If you delete a mail-enabled group or contact in Active Directory, the ADC deletes the corresponding distribution list or custom recipient in legacy Exchange.

3) If you remove the e-mail attributes from users, groups, or contacts in Active Directory, the ADC deletes the corresponding mailbox, distribution list, or custom recipient in legacy Exchange.

4) If you delete a mailbox in legacy Exchange, the ADC strips the email attributes from the corresponding user object in Active Directory.

5) If you delete a distribution list or custom recipient in legacy Exchange, the ADC strips the e-mail attributes from the corresponding group or contact in Active Directory.

§ Active Directory Connector Object Replication Check

§ Active Directory Object Replication Scan

§ Active Directory Unmarked Resource Mailbox Scan

SCHEDULING REPLICATION WITH THE ADC:

o Ensure that the 5.5 replication connector is set directly between the remote site and the central site.

o The replication connector is using the same server in the central site as the replication bridgehead that the ADC is configured to replicate changes from the Active Directory.

o The 5.5 replication schedule set to Always or short intervals

o Configuration Connection Agreements: Exchange 5.5 stores server information in a configuration container in the legacy Exchange directory service. Each Exchange server in a site knows about the other servers in the site by looking in this Configuration container. The legacy servers in a site will not know that you installed an Exchange 2003 server until they see the server’s information in the legacy Configuration container. That’s the job of the Configuration Connection Agreement, (CA) which is created automatically by default when you install the first Exchange 2003 server in the site.

o Configuration CA Function: When you install an Exchange 2003 server, Setup creates objects under the Exchange organization container in Active Directory that represent the following functions:

ü Site addressing and routing capabilities

ü Site Connectors

ü MTA (Message Transfer Agent) and other transport protocols

ü Private and public mailbox storage parameters

ü Recipient Policies

ü Site (Administrative Group) configuration parameters

ü Encryption and secure messaging parameter

INSTALLING AND CONFIGURING THE CONNECTION AGREEMENTS:

Recommendations: To be installed after the ForestPrep

INSTALLING AND CONFIGURING THE CONNECTION AGREEMENTS:

Connection Agreement Properties:

o Recipient Connection Agreements: The wizard creates two-way connection agreements, meaning that changes made to either of the directory service will replicate to the other service (within Active Directory).

o Check Connection Settings: This tab allows you to select the endpoint server for each side of the Connection Agreement and the credentials used to access the directory service on that server. Exchange 2003 has a service called the Site Replication Service. But, SRS listens at TCP port 379 rather than TCP port 389, the standard LDAP port.

o If you delete a resource mailbox, the ADC deletes the corresponding disabled user object in Active Directory.

o If you delete a standard mailbox, the ADC strips the e-mail attributes from the corresponding Active Directory object and sets the LegacyExchangeDN attribute to ADCDisabledMailByADC.

RESOURCE MAILBOX WIZARD MANAGEMENT:

It is best practice to allow the ADC Tools to create the necessary Connection Agreements (CA) for the migration process.

The wizard helps in the creation of the Connection Agreements required to migrate from Exchange 5.5 properly.

It will automatically create a recipient (CA) Connection Agreement and a public folder (CA) Connection Agreement.

This Wizard will identify users with multiple mailboxes and fix them in advance for the migration.

This step will determine if the same user owns multiple mailboxes. It gives you the possibility to identify the user’s primary mailbox so that other mailboxes can be designated as resource mailboxes. Click Run to query the Exchange 5.5 server and collect information about the Exchange organization. ADC Tools performs a series of four tests that will check for objects and attributes in legacy Exchange and Active Directory. This will help build XML database files to use later for resource mailbox marking. It looks for mailboxes that have a similar owner. After, the ADC Tool identifies and marks resource mailboxes using the Resource Mailbox Wizard. You can use the bulk edit capabilities to create .csv files for doing the mailbox marking.

HOW CONNECTION AGREEMENTS ARE CONFIGURED:

Connection agreements are configured by an Administrator who controls the type of objects that are replicated between Active Directory and Exchange 5.5. It contains information on how to handle the deletion and what to do when there is no matching account for the mailbox in the destination directory. Notice: To ensure that objects are created, the ADC marks all connection agreements as primary by default.

a) A primary connection agreement has the capability to create objects in the directory.

b) A secondary connection agreement can only update the attributes of existing objects.

Can configure: o One way from Windows or from Exchange

Can configure: o Two ways replication of the information this is synchronized in both directions.

This is generally the preferred method for it keeps the configuration simple

Types of Connection Agreements to be found during the Migration:

Exchange System Manager Program: Default

It will be created by default by the system when the first Exchange Server 2003 system has been installed. After the replication of the configuration information, Exchange 5.5 sites will be visible in the Exchange System Manager program and they are represented as Administrative Groups. Exchange Server 2003 systems are also visible in the Exchange 5.5 Administrator program.

Configuration Connection Agreements :( cannot be created manually)

This CA maps some of the objects in the legacy configuration container with objects in the Exchange 2003 Organization container in Active Directory. This CA cannot be created manually. Exchange Setup configures the CA as part of installation of the very first server in each legacy site. It is used for coexistence between the Exchange 5.5 and Exchange 2003 servers environments. To transfer information such as site addressing and routing information between the various Exchange platforms.

Recipient Connection Agreements:

It is responsible for replicating mailbox, distribution list, and custom recipient information from the Exchange 5.5 directory to the Active Directory. This CA maps the attributes of Users, Groups, and Contact objects in Active Directory with Recipient, Distribution Lists, and Custom Recipient objects in the legacy Exchange directory service environment.

It is also used to send users, groups, and contacts from Active Directory to Exchange 5.5. Recipient Connection Agreements it maybe configured as one-way or two-way connection agreements. It is important to remember that each connection agreement has its own schedule

Public Folder Connection Agreements:

This CA maps legacy public folders with Public Folder objects in Active Directory to allow Exchange 2003 to accept e-mail on behalf of the public folders. It is responsible for replicating mail-enabled public folder information from and to Exchange 5.5 and the Active Directory. This connection agreement can only be configured as a two-way connection agreement. It is best to create the connection agreement for each Exchange 5.5 site in regards to this connection agreement. Pfmigrate utility automates replication to allow Exchange mailboxes on the new Exchange Server 2003 systems to be able to access system and public folders.

PFMigrate /S: (Source Server) /T: (Target Server) /A /N: (Number) /SC

How to Manually Configure Additional Connection Agreements?

To configure a Manual Configuration Agreement:

Open the ADC MMC snap-in on the domain controller running the ADC.

The following tabs must be populated:

o General

o Connections

o Schedule

o From Exchange

o From Windows

o Deletion

o Advanced

To configure manually a public folder connection agreement:

It is best practise to right-click the Active Directory Connector service icon for the server and select New, Public Folder Connection Agreement.

The following tabs must be populated:

o General

o Connections

o Schedule

o From Exchange

o From Windows

After its creation, the Administrator must force replication immediately; right-click the connection agreement and select Replicate Now. Verify the Application Event Log in Event Viewer for errors during the replication process.

Rehoming and Distribution List Replication:

All Contacts, Distribution Lists (DLs) and Mail-enabled Public Folder Objects are represented in the Exchange 5.5 Directory and are associated with a specific site. When consolidating a 5.5 site, these objects must be moved (re-homed) to a new site prior to removing the old site or they will be lost. Re-homing these objects will ensure that they are not lost when an old site is removed and that mail flow to them can continue.

INSTALLING AND CONFIGURING THE FIRST EXCHANGE 2003 SERVER:

Run the program: Run SetupPrep it will be use to validate that all prerequisites are now in place for the installation of the first Exchange Server 2003 in the site.

Routing table issues: This Exchange server will hold many critical Exchange organizational management and routing master tables.

Installation path: Choose the installation path and ensure that Typical Installation is chosen.

The new Exchange site: Enter the name of an Exchange 5.5 Server of the site the Exchange Server 2003 system will be joining.

Permissions: During Exchange setup, the Exchange server’s machine account is added to a Global Security group called Exchange Domain Servers. This group is granted permissions on all Exchange objects to allow the Exchange Server 2003 services to access and update the Active Directory.

Two Global Security Groups:

a) Exchange Domain Servers

b) Exchange Enterprise Servers group

The Exchange Enterprise Servers group contains the Exchange Domain Servers groups from all domains in the forest and provides cross-domain access between all Exchange Server 2003 systems.

What has been installed during the setup of the Exchange 2003server?

1) Exchange Server 2003 binaries and services installed

2) Changes to Active Directory Configuration container

3) Exchange Server added to Exchange Domain Servers security group

4) Configuration connection agreement created (for routing)

5) Recipient Update Service (RUS) created

6) Site Replication Service (SRS) installed

Configuration connection agreements (ConfigCA) and site replication service (SRS):

ConfigCA:

The ConfigCA will be responsible for replicating the configuration information between the Exchange platforms. The ConfigCA replicates items such as the Site Addressing Policies and the routing information in the Gateway Address Routing Table (GWART). Also a new (ADC) connection agreement is added to the Active Directory Connector.

SITE REPLICATION SERVICES (SRS)

Interoperability: It will provide provides directory interoperability between the Exchange 5.5 and the Exchange 2003 servers.

LDAP: SRS service runs using LDAP and is needed only during the migration period.

Synchronization: SRS service runs in conjunction with the Active Directory Connector for directory synchronization.

SRS services: One SRS is allowed per Exchange Server 2003 system.

Replication Connectors: The SRS are created on all servers that house Exchange 5.5 Directory Replication Connectors. The Directory Replication Connector is replaced by the SRS to perform Inter-site replication with the remote Exchange 5.5 sites.

SRS Default: SRS is automatically installed and configured at the time of the installation of the Exchange Server 2003 installation.

Recipient Update Service: It is responsible for updating address lists and email addresses in Active Directory. The Recipient Update Service is responsible for updating the Enterprise configuration information in Active Directory (administrative and routing information).

Recipient Policies: The address list and email addresses are configured under this policy.

NB*: Recipients are Active Directory objects that have messaging capabilities. The object itself does not receive messages. The messages are not stored in Active Directory. Instead, they can reside in a mailbox on an Exchange server, in a public folder, or in another messaging system.
When the proper credentials are sent to the domain controller for the user object, the contents of the mailbox become available to the e-mail client like Outlook (in the inbox of the user).

EXAMPLES OF TWO METHODS TO MIGRATE THE MAILBOXES:

The Move Mailbox Tool:

The Move Mailbox tool allows the organization to migrate users in sizable numbers. The Outlook profiles automatically are updated on the Desktop. Upon log on the users are redirected to the new Exchange Server 2003 systems within the same administrative group. During the installation process the Administrator can choose to either create a failure report if corruption is detected or to skip corrupted items and continue the mailbox move.

a) Swing Mailbox Server Migration

b) Cross-site Mailbox Migrations

NB* If the move is unsuccessful, the user’s mailbox will still be available on the source Exchange 5.5 server. It is important to have a failed over design plan at this point to avoid errors.

In moving selected mailboxes to a different server, the duration of the task will depend upon the size of each of the selected mailbox. Specify the current mailbox store, the server, and the destination mailbox store. Decide on the action that you want the utility to take if corrupted messages are found.

MoveMailbox Features:

The Mailbox Wizard lets you decide, how it should react if one or more corrupted messages are detected. If you select Create a failure report, the mailbox containing corrupted messages will be left untouched, which basically means it won’t be moved. But if you select Skip corrupted items and create a failure report the mailbox will be moved, but any corrupted items detected will be deleted from the mailbox, not only on the destination server, but on the source server as well. It is very important to think about failover methods always backup your stores to media previous to the moves.

Option 1:

The utility can create a failure report (the report can be found in systemdriveDocuments and Settingsprofile nameMy DocumentsExchange Task Wizard Logs). This first option will not allow the move of the mailbox.

Option 2:

The second option is to skip corrupted items and create a failure report. With this option corrupted items will be permanently deleted from the mailbox. These items maybe recuperated from backup storage media.

This option gives Advanced Properties such as the possibility to specify the maximum number of corrupted items to skip; when the maximum number of corrupted items is exceeded the mailbox will not be move. It is possible to set a Task Schedule period within which to streamline the move.

It is possible to make use of the bulk mailbox move tool in addition to the Active Directory Users and Computers MMC snap-in to move Mailboxes. If the user has a corrupted item the option Skip Corrupted Items can be use. The mailbox can later be move manually even if it contains corrupted items with Exmerge. It is possible to plan and schedule to move 100 to 200 mailboxes per day.

The Move Mailbox process can be scheduled to execute right away, 4 mailboxes are processed at the same time, and this is the Multithreading feature.

Once the Mailboxes move has been completed, you can choose to view a detailed log file of the Move Mailbox operation, this log is saved in XML format and can be found under:
SystemdriveDocuments and SettingsprofilenameMy DocumentsExchange Task Wizard Logs

Glimpses of Siem Reap – The Gateway to Angkor Wat

The Airport

For those of you who travel, most will agree that airports don’t garner oohs and ahs or even compliments from those passing through. Well, I am here to tell you that the very small, two room Siem Reap airport is an absolute jewel. Built in a minimalist style with smooth dark stones and richly colored woods, it is truly a breath of fresh air in airport architecture. If it was the lobby of a luxury hotel, I wouldn’t have blinked and would have been just as enthralled. You know you are somewhere special when you arrive someplace and get very excited to see the city beyond, just based on the airport. Silly, I know, but in this case, I was not let down.

Airport Road and Siem Reap Town

Siem Reap is a bustling town with grand hotels going up in every size and shape, but none over four stories so as not to block the sunset of Angkor Wat!! Nice. Airport road, which is the main thoroughfare that runs from the Airport to Siem Reap and its environs seemingly has one hotel project after another breaking ground. Some are quite large resorts with Khmer architecture, while others are sort of a hodgepodge of styles and looks. The road is better dubbed hotel row. Once in town, there are a wealth of hostels, inns, hotels and true resorts to choose from. I stayed at the Hotel De La Paix and have to say it was one of the best hotels I have ever stayed in. See article on Hotel De la Paix at http://www.thinktraveltips.com . Among the hostels that I saw and thought were quite cute were Mom’s Guesthouse, Happy Guest house and the Villa Siem Reap. There are countless guesthouses and hostels in Siem Reap, so check out http://www.hostelworld.com as on source of advice. As for hotels, there are a number of 4 and 5* truly luxurious resorts to stay at that rival and beat many of their brethren around the world. The aforementioned, Hotel De La Paix (in Siem Reap town), the huber posh Amansara hotel (just a few steps from the center of town) where Brad Pitt and Angelina Jolie stayed only a few days prior to my arrival in Siem Reap, Le Meridien Angkor (about 1 kilometer from the town), Sofitel d’Angkor (1 kilometer from town) and Le Residence (about 1 kilometer from town). These last two hotels are quite large resort properties. For a more intimate stay there is the 4* FCC Angkor hotel that is set in the former French Ambassador’s residence. The hotel’s restaurant is one of the best and outdoor dining is a must should weather permit. Then there is the 75 year old plus Raffles Grand Hotel d’Angkor (centrally located) and one of the most revered hotels in Asia. I remember reading about this hotel when I was younger. It sounded so regal with the world’s social elite meeting in her restaurants to wine and dine. When I went for cocktails, I was taken with the sense of history, but I must say that I was not overwhelmed with the public areas. The hotel is pretty for sure, but there was definitely something missing for me. I was talking to a hotel guest and his wife from Hawaii who came to the Raffles for their honeymoon. They stayed in a deluxe suite and asked to change rooms twice before settling into a room that wasn’t “worn around the edges and looking all of its age.”

The WATS

Money is pouring into this small part of Cambodia as are tourists, en masse. There is no doubt in my mind that in ten to twenty years, there will be no one allowed to walk within the Wats themselves, viewing them from a distance unless the number of people admitted is severely curtailed. To put it simply, these awe inspiring, mind numbingly beautiful creations, some built by man over 1000 years ago are crumbling faster than at any other time. Sure, it has to do with global warming an changing weather patterns, but millions of hands touching the walls of these wats as well as climbing up, down and around them have definitely taken there toll. I even saw a number of places where the walls of many of these wats are covered in vandalism, which is so disturbing on many levels.

I can’t adequately describe the feelings I had when I first stepped foot into the first temple at Angkor Thom. You can see these architectural wonders on TV and in many of the glossy travel magazines, but seeing them in person is overwhelmingly powerful.

After getting a Wat pass, good for 24 hours and up to, in my case 2 temple complexes, (cost was $40 US) I took a 15 minute tuk tuk ride from my hotel to the first of several Wats. We passed up Angkor Wat because I am told that it is better to visit later in the day when it is less crowded. When we did motor past, there must have been thousands of people, no exaggeration, all around the massive complex.

We proceeded to Angkor Thom which was mesmerizingly beautiful. It looked like a land of the lost set, being that it was built in 1295. The nice thing was that there weren’t a lot of tourists clamoring for photos or anything else for that matter. I truly had a chance to take everything in.

We then drove about 25 minutes to Banteay Srei which was the oldest Wat that we went to, built in the 10th century. It was small in comparison to the other Wats that we saw, but visually stunning. The reds and oranges of the stone shimmered in the sun. It was eerily quiet when we got there and it gave me the opportunity to sit and look at the carvings that were of course all done by hand. Walking in and out of some of the temple chambers allowed me to get an up close and personal look at a wonder of the world. Again, I can’t imagine the Cambodian government letting people freely walk around. The foot traffic is just too great. Yes, I know, no one was there when I happened to arrive, but, I have a feeling that I was lucky.

A word about the bazaars that populate the areas just outside the Wats. You will be surrounded by people trying to sell their wares. You can get inexpensive t-shirts and the like at these places, but for the most part the souvenirs are the same everywhere, so if you are looking for cheap gifts, these road side markets are the places to do that For nicer object d’art, there are a number of galleries in Siem Reap’s “bar town,” which I will write about in a bit.

After a late afternoon lunch of vegetables and fish for about $3, I got back in my tuk and headed over to Angkor Wat, which I was very much looking forward to.. and I wasn’t let down by any means. The amount of people at the temple was disconcerting, but Angkor Wat is just so majestic, I was not going to be thwarted in getting to the sanctuary itself. God, this place was immense. And so indescribable. I almost cried. It was a weird sensation. I always wanted to travel to Cambodia and to be more exact, Angkor Wat. I’d read about it growing up in my travel anthologies that I used to read and in the Asia travel newsletters that my dad subscribed to. I’ve gotten close many times when I traveled to Thailand and Vietnam, but there were always extenuating circumstances that prevented me from going. Back in the 1990s, it was the fighting that was still taking place… and only about five or six years ago was it safe to truly travel around, although tourists have been visiting for many years at that point. As I walked through the first gate you realize just how big the Watt grounds are. Acres and acres of grass other monuments lead to the central Wat that is Angkor Wat.

The steps at the Wat are worn to a beautiful patina. The walls are massive and the carvings beautiful. In most spots you can touch the walls and feel the history…and also the bullet holes that pierced many of the walls during the war. When I arrived at a very steep stairwell leading up to the central gallery of the tallest most inner tower I thought of the pyramids of Chitzen Itza, Mexico where my brother when he was very young climbed up to the top, but couldn’t climb back down. We laugh about it all the time, but now, I wasn’t laughing. These were steep and narrow stairs and while I am not afraid of heights, I don’t like the idea of slipping and falling backwards. Needless to say, I didn’t travel all this way not to make it to the top of one of the most iconic architectural wonders! I climbed and climbed and didn’t look up nor back. I just focused on the steps. When I made it, I felt triumphant and exhilarated. The view was glorious. I just wish there weren’t hundreds of other people up there with me. But I have to say that everyone was equally as awed and excited to be there. Now, going down was another matter. One could either have waited in a 35 minute line to climb back down using a chain link stairwell or simply climb down the impossibly steep grade with no wait at all. Of course, others in my party simply skipped down the steps as if it were a game. Me, I waited and waited and waited…and couldn’t have been happier. I can’t wait to go back.

A tip or two: bring handy wipes since your hands will be filthy as will your clothing, bring bottled water and very comfortable RUBBER SOLED walking shoes or sneakers. You will definitely find yourself slipping if you have anything other than rubber on your feet.

AFTER THE SIGHTSEEING

PUB STREET (SIEM REAP) and PUB STREET ALLEY

Talk about being in a small town in Cambodia and the first thing you hear coming out of a bar is Donna Summer’s McCarthur Park. The world is not that big. The now famous and some would say infamous Pub Street is a few blocks east of the “old market” and is a two block area that is cordoned off to all cars and motor bikes. These are small walking streets and quaint side alleys, jammed packed with restaurants (French, Thai, Cambodian, Indian, Italian, etc…) art galleries and bars of every stripe. From raucous shot bars to more sedate and upscale piano and jazz bars. I had a great time walking around and taking it all in. Most of the bars and restaurants don’t start getting crowded until say 5 or 6, but if you want atmosphere, go around 9 or later. Some stay open very late. There are always tuk tuks to take you back to where you are staying.

Some fun bars and restaurants:

Ivy bar

Martini Pub

The Temple Club

Angkor What

Linga Bar

The Red Piano Restaurant

Karma Sutra Restaurant

One advice: Beware of the Happy Herb Pizza. It is what it sounds like.
Have fun, travel safe.