The DNSStuff article located at http://www.dnsstuff.com/free-network-monitoring-software offers some interesting takes on the differences between open source (where the tools source code is public and users can work with developers to improve the tool over time) and commercial network monitoring tools. For this week's discussion, summarize what the author of the article says are the pros and cons of open source versus commercial network monitoring software. If you were a network administrator, would you choose commercial or open source for your network monitoring tool? Why? Please respond with your discussion post of at least 300 words