At the University of California, San Diego, she was able to use an optical splitter to monitor all DNS client traffic from the university to the various root servers. From this perspective, she was able to monitor performance of all the root servers queried from anywhere in the university, easily finding out which servers have problems, and in some cases helping the root server administrators to improve their performance. At the F root server, Evi managed to spend some time collecting 6 GB per hour of trace data and gaining a perspective on performance from the root server's perspective. More interesting than the performance information she presented was the shocking fact that 25 percent of the queries the servers received were bogus, highlighting the magnitude of the problem with software bugs and DNS server mis-configurations. We don't like to update our overdue books page, but if we must, we will.
Books are due at the meeting following the one in which they are checked out.
See what meetings you can remember. We've updated our overdue book list . Please bring overdue books to our next meeting. Contact gaede at fruug.org .