nano /etc/apt/sources.list

deb http://ftp.fi.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.fi.debian.org/debian/ wheezy main contrib non-free
 
deb http://ftp.fi.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.fi.debian.org/debian/ wheezy-updates main contrib non-free
 
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
 
deb http://ftp.fi.debian.org/debian/ wheezy-backports main contrib non-free
deb-src http://ftp.fi.debian.org/debian/ wheezy-backports main contrib non-free

aptitude update
aptitude upgrade
 
nano /etc/locale.gen
locale-gen
 
aptitude install screen vim ntp
vim /etc/screenrc
vim /etc/fstab
 
reboot