It should be considered as vulnerable and so, no longer be used. NTLMv1 is weak and doesn't provide protection against man-in-the-middle (MitM) attacks. To increase security, we recommend that you review and configure this setting regardless of whether you experience problems or not. You can follow the steps as described in example 3. SSL offloading for Outlook Anywhere is enabled by default and must be disabled before Extended Protection is enabled. Outlook Anywhere configuration requirements You must ensure that all your Exchange servers are on the required CU and that they have the August 2022 SU (or later) before you continue with the configuration of Extended Protection. If your organization has Exchange Server 2013 installed, it must be running CU23 with the August 2022 or later Security Update installed. If your organization has Exchange Server 2016 or Exchange Server 2019 installed, they must be running either the September 2021 Quarterly Exchange Cumulative Updates with the August 2022 or newer Security Update installed or the 2022 H1 Cumulative Update with the August 2022 or later Security Update installed. Prerequisites for enabling Extended Protection on Exchange Server Exchange server versions that support Extended ProtectionĮxtended Protection is supported on Exchange Server 2013 CU23, Exchange Server 2016 CU22 (or later) and Exchange Server 2019 CU11 (or later) with the August 2022 or newer Exchange Server Security Updates (SU) installed. You can learn more about Public Folders here. Public Folders:Īre designed for shared access and to help make content in a deep hierarchy easier to browse. You can learn more about this feature here. This is the name of a method of configuring Exchange hybrid that removes some of the configuration requirements for classic hybrid (for example, inbound network connections through your firewall) to enable Exchange hybrid features. SSL Bridging:ĭescribes a process where a device, located at the edge of a network, decrypts SSL traffic, and then re-encrypts it before sending it on to the Web server. Terminates the connection on a device between the client and the Exchange Server and then uses a nonencrypted connection to connect to the Exchange Server. To enable Extended Protection, the required SSL flags are SSL and SSL128. This setting blocks clients that don't support Extended Protection.Ĭonfiguration of SSL settings is required to ensure that clients connect to IIS virtual directories in a specific way with client certificates. This value specifies that CBT checking is required. This setting allows secure communication with clients that support Extended Protection, and still supports clients that aren't capable of using Extended Protection. Specifies that CBT checking is enabled, but not required. Specifies that IIS doesn't perform CBT checking. Possible values for this setting are listed in the following table: Extended Protection Setting Extended Protection setting:Ĭontrols the behavior for checking of Channel Binding Tokens or CBT. Extended Protection is one such authentication setting. Several virtual directory settings can be configured by an admin, including authentication, security, and reporting settings. Is used by Exchange Server to allow access to web applications such as Exchange ActiveSync, Outlook on the Web, and the AutoDiscover service. Terminology used in this document Virtual Directory or vDir: Exchange Server 2019 CU14 has not yet been released. Read the following announcement carefully: Coming Soon: Enabling Extended Protection on Exchange Server by Default. Microsoft Windows 2.11 286 (5.25-1.Extended Protection will be enabled by default when Exchange Server 2019 CU14 (or later) is installed. Microsoft Windows 2.11 286 (Microsoft Mouse Bundle) (5.25-1.2mb) Product type OS Release date 1988 End of life date 2001 Minimum CPU 8088/8086 or higher Minimum RAM 512KB Minimum free disk space 720KB User interface GUI Platform Windows Download count 69 (8 for release) Downloads Download name
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