_fingerd
_identd
_portmap
_rstatd
_rusersd
_x11
adm
alias
apache
at
backup
bin
cron
daemon
games
gdm
gopher
guest
halt
httpd
irc
list
lp
mail
majordom
majordomo
man
msql
mysql
named
news
nntp
nobody
operator
popa3d
postfix
postgres
postmaster
proxy
qmaild
qmaill
qmailp
qmailq
qmailr
qmails
root
rsync
shutdown
smmsp
squid
sshd
sync
sys
uucp
www
www-data