Add Office 365 SRV DNS Records to AWS Route 53

Adding SRV records can be tricky as each name server host varies how to input name and value. AWS Route 53 administrators must include both service and protocol in the SRV name. Priority, weight, port, and target are added to the value field.

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Microsoft Windows Server Disable SSL3

The registry values are manually set by running regedit as administrator, then checking these values

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Microsoft Windows Find Disk Allocation Unit Size

When configuring disks for specific performance, especially in SQL and Exchange, it is important to set NTFS disk allocation unit size correctly.  Foe example, The size of files and IO operations call for 64K unit size   run the following command from an elevated command prompt: fsutil fsinfo ntfsinfo <Disk Letter:> Bytes per Cluster shows the allocation unit size.  Divide by 1024...

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Uptime Chart

All levels of web-scale IT stacks should be monitored for availability, response time, and performance. Whether self-imposed or customer-imposed, the availability SLA percentage translates to a specific amount of downtime. Industry lingo may refer to this as the number of "nines" of an application or resource. For example, 99.99 would be referred to as 4 nines.

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Windows Server Logs Flooded with SChannel events

Periodically, we notice Microsoft Server events get flooded with schannel critical events.  Depending on the environment, these can be transient errors.  On one occasion, one of our customer servers received thousands of SChannel events every hour while its virtual machine clone received none. Make sure to evaluate your environment and verify you support the appropriate protocols, cipher suites...

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Microsoft’s KB2992611 Critical SSL TLS Update Fiasco

Microsoft released KB2992611, MS14-066, a critical patch to address remote code execution schannel vulnerabilities, during the November 11, 2014 patch Tuesday.  Admins scrambled to install this zero-day update as the community feared “drive-by” attacks and many security agencies rated it as one of the most critical updates released by Microsoft.  Unfortunately, the patch broke...

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