Call it a "MOTD" call it a "log-on banner", when you first log on to a Ubuntu server, you get some thing like this:
$ ssh email@example.com firstname.lastname@example.org's password: Linux ubuntu910beta 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 To access official Ubuntu documentation, please visit: http://help.ubuntu.com/ System information as of Fri Nov 13 20:57:46 EST 2009 System load: 0.16 Memory usage: 54% Processes: 74 Usage of /: 20.2% of 7.23GB Swap usage: 0% Users logged in: 1 Graph this data and manage this system at https://landscape.canonical.com/ 0 packages can be updated. 0 updates are security updates. Last login: Fri Nov 13 20:47:42 2009 from localhost
Blah what a mess.
All this crap comes from the
update-motd package. Looking in the
/etc/update-motd.d directory you'll see various bash scripts to generate parts of the output.
Personally, I would remove
91-release_update. This will make log-in much faster. Keeping the
99-reboot-required is your call. It's a fast check, but really should be handled by your monitoring system.
00-header does two things: print the system/kernel version (via
uname) and cat out
/etc/motd.tail if it exists. I get rid of the call to
uname and replace
/etc/motd.tail to be something useful.