student@rn04:~$ telnet student
telnet: could not resolve student/telnet: Name or service not known
student@rn04:~$ telnet 10.30.59.103
Trying 10.30.59.103...
Connected to 10.30.59.103.
Escape character is '^]'.
Ubuntu 9.04
rn03 login: student
Password:
Last login: Fri Jul 24 14:34:00 CEST 2009 from rn09.local on pts/1
Linux rn03 2.6.28-18-generic #59-Ubuntu SMP Thu Jan 28 01:23:03 UTC 2010 i686
The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.
To access official Ubuntu documentation, please visit:
http://help.ubuntu.com/
73 packages can be updated.
136 updates are security updates.
student@rn03:~$ man shutdown
student@rn03:~$ shutdown
shutdown: time expected
Try `shutdown --help' for more information.
student@rn03:~$ write student
write: write: you have write permission turned off.
student@rn03:~$ shutdown -0
shutdown: invalid option: -0
Try `shutdown --help' for more information.
student@rn03:~$ shutdown -now
shutdown: invalid option: -o
Try `shutdown --help' for more information.
student@rn03:~$ shutdown now
shutdown: Need to be root
student@rn03:~$ man root
No manual entry for root
student@rn03:~$ sudo
usage: sudo -h | -K | -k | -L | -l | -V | -v
usage: sudo [-bEHPS] [-p prompt] [-u username|#uid] [VAR=value]
{-i | -s | <command>}
usage: sudo -e [-S] [-p prompt] [-u username|#uid] file ...
student@rn03:~$ sudo shutdown
[sudo] password for student:
Sorry, user student is not allowed to execute '/sbin/shutdown' as root on rn03.
student@rn03:~$
