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This operation is optional, and allows optional allowing SBA administrators to configure the security settings for roles, role services, and features on the SBA. This applies security rules to the Windows Server 2008 R2 operating system on the ASM hosting the SBA, and improves system hardening (i.e., reducing its surface of vulnerabilityvulnurability). You can do so by either Applying a Predefined Security Template, or Importing a Custom Security Template of choice. The following is a list of the main groups of security rules that are modified:
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Applying
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a Predefined Security Template
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Once the security template is applied, the action cannot be reversed. In order to disable the security template, the ASM has to be re-initialized. |
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- Enables data execution protection
- Enables firewall
- Disables domain users from logging into the ASM
- Enables only local administrator login
Click the Apply Stronger Security Rules Template
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Panel borderStyle none - In the WebUI, access Tasks> Lync Survivable Branch Appliance (or Skype for Business Survivable Branch) > Setup SBA.
- Click Security.
Caption 0 Figure 1 Apply Predefined Security Template 
From the Apply Version drop down list, select the applicable TLS option (TLS 1.2 Only or TLS 1.0-1.2).
Info Depending on the SBA deployment, configure the appropriate TLS version. See below for guidelines.
- TLS 1.2 Only is supported for Lync 2013 with security update and Skype for Business.
- TLS 1.2 Only is not supported in Lync 2010.
Note For TLS 1.2 Only to work with a Skype for Business setup, ensure ASM-ROLL-UP-UPDATES_2016-10.zip or later is applied to the SBA. For installing ASM Rollups, refer to ASM Roll-up Update.
Click Apply TLS Version.
For Microsoft SBA Security Hardening, click Apply Default Template. If SBA Security Hardening has been run on the SBA at deployment, this field will be greyed out.
For Custom Security Template, click Browse and select the applicable Security XML file. You need a Windows Server 
- Click OK. The operation will take up to to 5 minutes to complete.
Importing a Custom Security Template
You will need a Windows Server 2008 security template XML file created using the Microsoft Security Configuration Wizard (SCW)
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Verify TLS Version is Applied
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| 1 | View Enabled TLS Version |
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