id summary reporter owner description type status priority milestone component resolution keywords cc fix_version see_also 245 127.0.1.1 breaks 3partysw license managers alexp "On Apr 3, 2009, at 6:07 PM, Anders Kaseorg wrote: >>>127.0.1.1 zippy zippy.mit.edu >>>is denied, but >>>127.0.1.1 zippy.mit.edu >>>is allowed. >>This probably happens because `hostname -i` will be 127.0.1.1 in the >>former case, but 18.142.4.128 in the latter case. So this is another >>manefestation of the known problem with 127.0.1.1. >Thanks for the information; we really need to solve the problem though; do >we do that by making sure all hosts on those lines are fully qualified? To be clear, the problem is not that there is a non-fully-qualified hostname in /etc/hosts. The problem is that because your kernel’s hostname is zippy, which is resolved by /etc/hosts to 127.0.1.1, license managers that have a client-side ACL of IP addresses (like 18.*) get confused. If, as you did, you take zippy out of /etc/hosts (leaving only zippy.mit.edu), then zippy is resolved by DNS to 18.142.4.128 using the search path and servers in /etc/resolv.conf, and the license manager presumably becomes less confused. A better client-side workaround is to put the right IP address in /etc/hosts: 18.142.4.128 zippy zippy.mit.edu which is what I think the Ubuntu installer does if you configure it with a static IP address at install time. (For the cluster machines, we currently don’t.) We are currently discussing possible solutions on zephyr. " defect closed trivial The Distant Future -- workaround alexp