How to detect ethernet network speed in Windows
Being able to detect the ethernet network speed using PowerShell or WMI is perfect for Windows Server Core. If you ever need to lookup the speed of your ethernet network card in Windows, on the command-prompt, use one of the following PowerShell / WMIC commands.
WMI/netsh to add DNS servers on network adapters
How to add DNS servers -or resolvers- to a Windows Server network adapter, or interface using WMI and the netsh command annd PowerShell. This one is quite old but may come in handy sometimes. In this example we use Google's Public DNS server addresses and localhost to add as DNS Servers on our server's interfaces.
DHCP on Windows Server 2012 using 169.254.xx.xx as server name
After installing a new Windows Server 2012 R2 machine with the DHCP role enabled, adding a DHCP server used a 169.254.x.x IP address as server name. Instead of the servers hostname
Explicit Congestion Notification (ECN) slows down outbound connections
ECN is an optional feature that may be used between two ECN-enabled endpoints when the underlying network infrastructure also supports it. Unfortunately, having one ECN Capability enabled endpoint may slow down outbound network connections to outdated network equipment.
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