Sharing some small configuration changes that I have found useful.
Set UTC timezone as default:
# dpkg-reconfigure tzdata
select Etc and UTC.
Better OOM handling (for small–memory VPS machines):
vm.min_free_kbytes = 16384
More info about it: http://blogs.linbit.com/p/28/kernel-min_free_kbytes/
Set UTF–8 for locale:
# dpkg-reconfigure locales
and select en_US.UTF–8 as default.
Install Apticron to help with keeping the system up–to–date:
# apt-get install apticron # dpkg-reconfigure apticron
Apticron will send email with the list of packages to upgrade.