Looking at the /etc folder... :)

['complete.tcsh', 'libpaper.d', 'modprobe.conf', 'bash.bashrc', 'init.removed', 'php5', 'debian_version', 'crontab', 'rpc', 'insserv.conf.d', 'inittab', 'dhcp', 'rc3.d', 'shells', 'sensors.d', 'ax25', 'network', 'ufw', 'bind', 'resolvconf', 'nsswitch.conf', 'rcS.d', 'rc4.d', 'fstab', 'timezone', 'defoma', 'sudoers.d', 'default', 'modprobe.d', 'blkid.tab', 'wide-dhcpv6', 'shadow', 'shadow-', 'group-', 'fonts', 'cron.daily', 'pm', 'apparmor', 'init.d', 'kernel', 'blkid.conf', 'protocols', 'apt', 'alternatives', 'networks', 'locale.alias', 'emacs', 'papersize', 'gshadow-', 'pam.d', 'rc5.d', 'inputrc', 'fpc.cfg', 'X11', 'sysctl.conf', 'environment', 'modules', 'rc0.d', 'dhcp3', 'sudoers', 'login.defs', 'opt', 'calendar', 'mailcap.order', 'redis', 'apparmor.d', 'subversion', 'update-motd.d', 'insserv.conf', 'magic', 'profile', 'localtime', 'ODBCDataSources', 'sasldb2', 'python2.6', 'passwd-', 'rc6.d', 'ghostscript', 'anacrontab', 'manpath.config', 'rc.local', 'ld.so.conf', 'bash_completion.d', 'legal', 'aliases', 'motd', 'java-6-sun', 'ppp', 'ld.so.conf.d', 'depmod.d', 'ucf.conf', 'insserv', 'iproute2', 'xinetd.conf', 'xinetd.d', 'apache2', 'cron.monthly', 'python2.7', 'services', 'profile.d', 'odbc.ini', '.pwd.lock', 'csh', 'sysctl.d.removed', 'logcheck', 'magic.mime', 'rc2.d', 'rc1.d', 'logrotate.conf', 'hosts.allow', 'nologin', 'pam.conf', 'lynx-cur', 'mono-server2', 'csh.cshrc', 'cracklib', 'python', 'mailcap', 'mtab', 'samba', 'ssl', 'csh.login', 'mail.rc', 'logrotate.d', 'cron.weekly', 'perl', 'rmt', 'mono', 'avahi', 'skel', 'mail', 'host.conf', 'csh.logout', 'ca-certificates.conf.dpkg-old', 'cron.d', 'groff', 'cron.hourly', 'lsb-release', 'debconf.conf', 'hostname', 'ld.so.cache', 'ldap', 'quotagrpadmins', 'ca-certificates', 'updatedb.conf', 'securetty', 'initramfs-tools', 'hosts.deny', 'snmp', 'dbus-1', 'init', 'udev', 'resolv.conf', 'lsb-base', 'issue.net', 'apm', 'console', 'security', 'issue', 'newt', 'mtools.conf', '.java', 'console-tools', 'gdm', 'sysctl.d', 'deluser.conf', 'gshadow', 'screenrc', 'ca-certificates.conf', 'gtk-2.0', 'terminfo', 'bindresvport.blacklist', 'syslog.conf', 'adduser.conf', 'quotatab', 'lsb-base-logging.sh', 'ssh', 'hosts', 'sensors3.conf', 'xsp2', 'vim', 'passwd', 'wgetrc', 'gai.conf', 'group', 'dpkg', 'mime.types', 'warnquota.conf']
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
bind:x:101:105::/var/cache/bind:/bin/false
fetchmail:x:102:65534::/var/lib/fetchmail:/bin/false
sshd:x:103:65534::/var/run/sshd:/usr/sbin/nologin
klog:x:104:107::/home/klog:/bin/false
syslog:x:105:108::/home/syslog:/bin/false
smmta:x:106:109:Mail Transfer Agent,,,:/var/lib/sendmail:/bin/false
smmsp:x:107:110:Mail Submission Program,,,:/var/lib/sendmail:/bin/false
ren:x:1000:1000::/home/ren:/bin/bash
messagebus:x:108:112::/var/run/dbus:/bin/false
avahi:x:109:113:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false