Network-status indicator

I run a NFS/NIS network under a combination of OS's for the upper-division physics lab here at CSUC, and one source of irritation is when one machine goes down and nobody lets me know until suddenly that machine is absolutely necessary NOW! So I figured an Arduino, living in the machine on my desk, might serve as an early-warning system for network problems. I used red/green common-cathode LEDs for my indic ...

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