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Microsoft is saying that you can no longer use _ in a host name pc_03. Can this really make problems in DNS or is this something that Microsoft wants us not doing because they are not sure of the outcome of this?
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Microsoft is saying that you can no longer use _ in a host name pc_03. Can this really make problems in DNS or is this something that Microsoft wants us not doing because they are not sure of the outcome of this?

Microsoft host namse and DNS

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.