/etc/default
Directories:

• /etc
• /etc/default/grub.d

Files:

• cron
• rsyslog
• dovecot
• ssh
• apache-htcacheclean
• grub
• sysstat
• mysql
• bsdmainutils
• nss
• proftpd
• smartmontools
• keyboard
• networking
• useradd
• dbus
• locale
• rsync
• console-setup
• hwclock