Today we look at an interesting operational use case of logs that we learned about by painful experience — static IP address conflicts. We have a pretty large number of static IP addresses assigned to our server machines. Typical of a smaller company we assigned IP addresses and recorded them in a spread sheet. Well, one of our network guys made a mistake and we ended up having problems with duplicate addresses. The gremlins came out in full force and nothing seemed to be working right! We used logs to quickly diagnosis the problem. Although I mention a windows pop-up as a possible means of being alerted to the problem I can safely say we did not see it, or if we did, we missed it.
– By Ananth