IT Dojo: Three tools that network administrators can't live without Network administrators are always looking for tools that can save them time and help them optimize and secure their networks. I'm sure most, if not all, of you have your own list of favorite tools. In this IT Dojo video, Bill Detwiler talks about the following three net admin tools that our TechRepublic authors and members say they can't live without:1. PuTTY2. Wireshark3. NessusOnce you’ve watched this IT Dojo video, you can find a link to the original TechRepublic article, print the tip, and get links to additional Linux and open source resources from our IT Dojo Blog.