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How to Set Up Office with App Layering (Recipe)
For each component within the document there is a brief description of the contents of the section, a commentary on the items that have been considered in determining the decisions and the design decisions themselves.
Office is a global service which is offered in many different physical regions. Choosing a region to store data is required to ensure that the data of the Agency does not get transferred or stored offshore.
The region where the Office tenant is set up determines where the data is store. To grant access to the services a licence is assigned to an individual user account. A licence can be assigned by an administrator at the time of the user account is created or through Azure AD group-based licensing.
Azure AD group-based licensing allows an Administrator to associate a licence to a group. Any members within the group will be assigned that licence automatically. When a user is removed from the group the licence is removed. Self-Service purchase add-ins for Office allows users of Office to purchase 3rd party add-ins to be added into Office tenancy.
Self-service purchase of applications from the Microsoft Power Platform products was introduced in January By default, this is enabled for all users within the tenant and paid by credit card. These processing of data for these add-ins does not sit within Office tenancy.
The logo of the organisation can be added to the top navigation panel. Themes assist users with familiarisation and adoption of the new system. Note: Themes will be the responsibility of the Agency and this table contains recommendations and restrictions for the themes. Office centrally manages Office services and add-ins. Office services and add-ins can enhance both the way information is accessed and the way business is conducted.
Enabling Services and Add-ins also comes with risks, such as the risk of data being shared with other Microsoft services outside of the tenant boundary, or shared outside of Australian data centre locations. Out of the box, several services and add-ins are configured within the portal. The design will take into consideration the services and add-ins that are part of Office The design decision is based on the requirement provided by the Agency and application that is hosted on. In relation to system administration, RBAC provides various roles each of which can only perform certain tasks.
For example, help desk staff may be able to only view certain resources, whereas system administrators could view, create, and delete those resources.
Office provides a subset of administrative roles available in Microsoft Azure. PIM requests are made through the Azure portal for elevated access only when they are required, and access is expired after a specified period. Note, using PIM for the SharePoint administrator role, the Device administrator role, and roles trying to access the Microsoft Security and Compliance Center might experience delays of up to a few hours after activating the role, see PIM Roles for further information.
Customer lockbox provides a time-boxed, secure mechanism for Microsoft Support Engineers to assist in customers support query in Office Microsoft Support engineers will have to request authorisation from the Agency to access the underlying data in Office tenant. Customer Lockbox address situations where Microsoft Engineers require access to client data within Office to resolve an incident.
All access requests are recorded for auditing purpose. Office is a publicly facing SaaS offering and firewall ports are required to be opened to allow communication between infrastructure and desktops and Office These ports configurations are updated frequently and are available online from Microsoft. It is important to note the traffic between the clients and the Office offering is TLS 1. Mail flow is the path taken by an email from the sender to a receiver.
A Mail Gateway acts as the central egress and ingress point for mail traffic into an organisation. This will achieve the closest alignment to whole of government policy for Secure Internet Gateways , guidance of the Information Security Manual and the Protective Security Policy Framework.
When a GovLink mail gateway is required, Agencies can either use an existing gateway or a new gateway. It is not possible to configure Exchange Online to directly send email via GovLink. Exchange Online must resolve to a public facing IP address, which is not possible across the GovLink network. In this instance a Mail Relay would be required with a public facing interface and a second interface that is able to connect to GovLink.
The following image shows the high-level mail flow for agencies implementing without on-premises infrastructure. The figure below shows the high-level mail flow for agencies leveraging on-premises infrastructure in a hybrid configuration. Office is a globally distributed service. The user experience with Office involves connectivity through highly distributed service connection points that are scaled over many Microsoft locations worldwide.
This section outlines two sets of design decisions, representing advice to achieve the highest level of maturity and adherence to existing Whole of Government policies and advice to maximise optimisation outside and user experience. The below information is to inform agencies, including on how best to maximise optimisation and user experience, however consideration should be given for the risk implications of implementing in such a way.
While this approach of optimisation represents the current best practice published by Microsoft it is inconsistent with the previously referenced guidance of the ISM and PSPF relating to Secure Internet Gateways.
We have provided configuration controls for both scenarios below. To minimise latency, a customer network can route user requests to the closest Office service entry point, rather than connecting to Office through an egress point in a central location or region. This section is only relevant for agencies implementing a hybrid solution that leverages an on-premises Exchange Server s.
A Hybrid configuration provides administrators with added flexibility to transition users to the Cloud without isolating them from the on-premises resources. A Hybrid configuration can also assist with transport routing for compliance reasons e. The Edge Transport service may be deployed in scenarios where the agency does not wish to expose Hybrid mail servers directly to Exchange Online Protection.
Agencies wishing to synchronise their existing on-premises Active Directory Domain Services for identity hybrid identity must maintain an on-premises Exchange server for recipient management purposes, this is because most of the user attributes cannot be managed from Exchange online due to directory synchronisation rules, for more information see decommissioning on-premises Exchange servers.
Establishing a hybrid deployment requires an Exchange hybrid server that is supported with your existing on-premises Exchange Server. Microsoft recommends the deployment of the newest Exchange Hybrid server for your environment to ensure the best compatibility with Exchange Online. Exchange has reached end of support , agencies that wish to use retain a Hybrid configuration after the Hybrid migration method should migrate those Exchange server roles to a supported version of Exchange.
Microsoft also recommend that agencies still on Exchange that have not started or completed their Hybrid migration, upgrade from to before commencing the hybrid configuration.
The following table outlines the Exchange server roles required to be installed based on on-premises Exchange environment version. The roles mentioned for Exchange and can be installed separately or on one server, Microsoft strongly recommend installing all roles on one server. Exchange Hybrid design considerations and decisions only apply to agencies leveraging a hybrid implementation.
Mail Exchange MX records specify the mail server responsible for accepting mail on behalf of the domain. Multiple records are largely configured for availability, redundancy, and load balancing reasons. Mail connectors use TLS to secure communication and can customise the way mail flows into and out of the organisation. Generally mail connectors are required.
An exception may be where an agency does not use a mail gateway and relies on Exchange Online Protection. When the organisation intends to operate at the PROTECTED level, the blueprint assumes that all agencies are implementing the configuration with a Mail Gateway and as such, provides detailed configurations on implementing mail connectors via the relevant gateway.
The required input from the user is their email address and password. Autodiscover for a cloud environment varies from the process utilised when on-premises Exchange is leveraged.
With a cloud environment, an Autodiscover Endpoint representing the domain is not available. The high-level process is:. These tools can coexist to provide enhanced capabilities. Note, agencies that enable DKIM signing within Office that also add additional business logic to email at the egress mail gateway, such as adding a default Agency email disclaimer, would fail DKIM authentication as the contents of the email had changed after the email had been sent from Exchange Online.
In this scenario consider migrating the business logic from the mail gateway to native Exchange Online transport rules. Only emails addressed to users within the nominated domains are accepted. Remote Domains allow administrators to control the type of replies and format of messages users send to the destination domain.
The default remote domain will apply the same settings to all messages; however, administrators can configure specific settings for specific domains. There are additional specific certificate requirements when configuring Exchange Hybrid that only apply to agencies implementing a hybrid configuration as Exchange Online encrypts all traffic to the on-premises environment. Agencies implementing cloud only environments that do not leverage an on-premises Exchange Server do not need require these configurations.
Microsoft Exchange Online is a cloud-hosted messaging solution that has the capabilities of on-premises Exchange services. Exchange Online provides email, calendar, contacts, and tasks. Exchange Online supports mailbox delegation, where a delegate can have send-on-behalf and management rights over other mailboxes. Shared mailboxes can be assigned to and administered by many users.
Application mail sending is supported where the application can authenticate against the Simple Mail Transport Protocol SMTP message submission to users inside the managed environment or authenticated SMTP message relay to addresses outside the managed environment.
Agencies should also refer to Mail Flow and Gateway for more information on mail flows, mail gateways and the use of GovLink. The implementation of Exchange Online can be coupled with a migration from the existing on-premises Exchange infrastructure.
If a migration is not required, the deployment is referred to as a greenfield deployment of Exchange Online. User Mailboxes are Exchange Mailboxes that are associated with a user account. Usually one mailbox is associated to one user account. If the licence is changed, the CAS Mailbox plan linked to that new licence is applied. CAS Mailbox plans will be inherited from the existing Agency plans. In addition to the above mailbox configuration, by default, standard user accounts have access to Exchange Online via Exchange Online PowerShell.
ACSC guidance to disable unneeded features requires that this feature be disabled. Authentication policies control the authentication methods which can be used to access Exchange Mailboxes. Authentication policies can be leveraged to protect the organisation from brute force and password spray attacks. To protect against this, Basic Authentication can be blocked.
Basic authentication is where a username and a password are leveraged for client access requests. Blocking Basic Authentication forces clients to use Modern Authentication.
– Microsoft Office Professional Plus configures each time you start
The ll-cc value is the language identifier. Yes No. User profile installations must be done in the end-user VM while logged in as the user. Separate Application Layers to define which edition to use for Project and Visio on a particular desktop.
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