Category Archives: Networking

Detecting Ephemeral Port Exhaustion in Windows 7 / 8 / 2012

Ephemeral ports are ports that start at a higher range then regular ports. For example when compared to a web server that listens on port 80, ephemeral ports start from 49152 for Windows 2008 R2.  If there are scripts or … Continue reading &r...

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How to set up a Microsoft Network Load Balancing (NLB) in Windows 2008 R2

OVERVIEW Here is a quick guide how to set up two Web Servers that will be serving out the same web page for redundancy and load balancing purposes.  When we go to www.mywebsite.com address, the name will resolve to the Load Balancing … Cont...

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Netstat script that runs every 60 seconds and counts open connections

Here is a quick NETSTAT script that runs every 60 seconds and appends the output to c:\ports\netstat.txt.  The script exports the count of connections in a specific state.  The output is very similar to what TcpView shows you at the bottom of &he...

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