** Changed in: sudo (Ubuntu) Assignee: Martin Pitt (pitti) => (unassigned)
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to sudo in Ubuntu. https://bugs.launchpad.net/bugs/32906 Title: sudo fails if it cannot resolve the local hostname and no MTA is installed Status in sudo: Fix Released Status in sudo package in Ubuntu: Fix Released Status in sudo source package in Hardy: Fix Released Bug description: On behalf of Adam Williamson [*] adamw@ubuntu510:~$ sudo scp 192.168.2.7:/etc/hosts /etc adamw@ubuntu510:~$ sudo nano /etc/hosts sudo: unable to lookup ubuntu510 via gethostbyname() …yeah, sudo, it’s all very clever until someone loses an eye! I have a bunch of entries in /etc/hosts because of having four local systems plus a bunch of VMware machines etc. So now when I set up a new VMware machine I just copy the /etc/hosts from the real machine over to the VM then edit a couple of lines to match the VM, instead of re-editing it all from scratch. Only, as you can see, this utterly breaks Ubuntu…all I need to do to fix the sudo problem is edit /etc/hosts so 127.0.0.1 is ‘ubuntu510′ (the name of the VM) rather than ‘zen’ (the name of the real machine), but I can’t do it, because sudo doesn’t work… the only way out of this that I can see is single-user mode or the recovery console. Not too smart! Surely sudo shouldn’t ABSOLUTELY NEED to look up the host it’s running on? [*] Originally from http://www.happyassassin.net/2006/02/24/how-to-break-ubuntu-in-thirty-seconds/, If you consider that this is relevant and worth discussing, we can add Adam Williamson to the conversation. Otherwise, just mark it as invalid and forget it. TEST CASE: - This only works (i. e. fails) on a system where /usr/sbin/sendmail does NOT exist (standard Ubuntu installation) - open a terminal and do "sudo -i" to get a root shell; do "hostname foo" - open another terminal, and try "sudo ls". Hardy final will fail with "unable to resolve host foo" and not run the ls. - upgrade sudo to the hardy-proposed version and attempt the same. sudo should still complain, but run the ls command. To manage notifications about this bug go to: https://bugs.launchpad.net/sudo/+bug/32906/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp