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Dan Boyle

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Whitelist inbound office365 IP addresses

Is there a definitive list of inbound Office365 IP addresses that will try to connect to our WAP server (in a DMZ) that is going to be used for ADFS? The security team are asking whether it is possible to lock down what IP addresses can connect to the server at a firewall level, or is this not achievable?

I am new to ADFS and O365
Microsoft 365SecurityHardware FirewallsNetwork Security

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masnrock
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I think they are after a list of IP addresses that will be connecting to us, rather than what we will be connecting to in this instance - is there a definitive list?
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Security
Security

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection. Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.

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