"Uptime" and "Availability", two common IT terms
Uptime and availability, the two most often referred to terms in conveying the reliable of an IT service. Service providers often boost their service uptime in 99.99% (four-9s), 99.999% (five-9s) or even higher percentages. For some, these two terms seem to refer to the same things and thus are used interchangeably. As a result, a service advertised with the five-9s (or higher) uptime gives the perception of a very reliable service for a perspective IT service customer. However, no
On July 14, 2020, Microsoft announced a critical vulnerability in the Windows DNS Server with a CVSS base score of 10.0, the highest possible score. Microsoft publicly released updates for Windows Server 2012, 2012 R2, 2016, and 2019 but not for Windows Server 2008 or 2008 R2. Why not?