We are experiencing the same symptoms with sudo (v1.8.16) as have been
previously reported in this bug.
On an Ubuntu 16.04 system short hostnames don't work in the sudoers file when
the 'fqdn' option is true (as it is by default). The documentation indicates
that the short form should still work with the fqdn option set.
Steps to reproduce:
On a system called 'ubuntu1604.example.com', put the following into sudoers:
%john ubuntu1604=(root) NOPASSWD: /bin/true
%john ubuntu1604.example.com=(root) NOPASSWD: /bin/false
Expected outcome:
sudo -l shows user 'john' is allowed to run:
(root) /bin/true
(root) /bin/false
Actual outcome:
sudo -l shows user 'john' is allowed to run:
(root) /bin/false
sudo -l -U john -h ubuntu1604 shows user 'john' is allowed to run:
(root) /bin/false
sudo -l -U test -h ubuntu1604.example.com shows user 'john' is allowed to run:
(root) /bin/true
(root) /bin/false
------
Sudo version 1.8.16
Configure options: --prefix=/usr -v --with-all-insults --with-pam --with-fqdn
--with-logging=syslog --with-logfac=authpriv --with-env-editor
--with-editor=/usr/bin/editor --with-exampledir=/usr/share/doc/sudo/examples
--with-timeout=15 --with-password-timeout=0 --with-passprompt=[sudo] password
for %p: --without-lecture --with-tty-tickets --disable-root-mailer
--enable-admin-flag --with-sendmail=/usr/sbin/sendmail
--with-rundir=/var/run/sudo --mandir=/usr/share/man --libexecdir=/usr/lib/sudo
--with-sssd --with-sssd-lib=/usr/lib/x86_64-linux-gnu --with-selinux
--with-linux-audit
Sudoers policy plugin version 1.8.16
---------
root@bs-ubuntu1604:~# uname -a
Linux bs-ubuntu1604 4.4.0-64-generic #85-Ubuntu SMP Mon Feb 20 11:50:30 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
---------
root@bs-ubuntu1604:~# cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 bs-ubuntu1604.ethz.ch bs-ubuntu1604
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
root@bs-ubuntu1604:~# hostname
bs-ubuntu1604
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https://bugs.launchpad.net/bugs/1591137
Title:
sudo ignores shortname aliases in sudoers file
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