System User and Groups

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This page is created and intended to be a record of all the user and groups that may be created in the wiki. Its main purpose is to prevent overlaps in GID/UID numbers and a quick reference for a damaged/impaired system. If you change a number or add a package that requires a specific User or Group, please make sure to update this page.

User/Group UID GID Created In
root 0 0 CLFS
bin 1 1 Portmap
sys - 2 CLFS
kmem - 3 CLFS
adm 3 16 CLFS (Suggested)
tty - 4 CLFS
tape - 5 CLFS
daemon 6 6 CLFS (Suggested)
floppy - 7 CLFS
disk - 8 CLFS
lp 10 9 CUPS
dialout - 10 CLFS
audio - 11 CLFS
video - 12 CLFS
utmp - 13 CLFS
usb - 14 CLFS
cdrom - 15 CLFS
console - 17 CLFS (Suggested)
cdrw - 18 CLFS (Suggested)
haldaemon 19 19 HAL
avahi 20 20 Avahi
avahi-autoipd 21 21 Avahi
netdev - 22 Avahi
gdm 23 23 GDM
fcron or vxicron 24 24 Fcron or Vixie-Cron
apache 25 25 Apache
polkit 26 26 PolicyKit
messagebus 27 27 D-BUS Core
named 28 28 BIND
vboxusers - 29 VirtualBox
mail 30 30 CLFS (Suggested)
news 31 31 CLFS (Suggested)
uucp 32 32 CLFS (Suggested)
postfix 33 33 Postfix
postdrop - 34 Postfix
courier 35 35 Courier-Authlib
clamav 36 36 Clamav
dovecot 37 37 Dovecot
smmsp 38 38 Sendmail
wheel - 39 CLFS Systemd
mysql 40 40 MySQL
ftp 45 45 vsftpd
vsftpd 47 47 vsftpd
sshd 48 48 OpenSSH
zabbix 49 49 Zabbix
operator 50 - CLFS (Suggested)
postmaster 51 - CLFS (Suggested)
named 52 52 BIND
git 55 55 Gitosis
svn 56 56 -
squid 59 59 Squid
games 60 60 GNOME Games
stb-admin - 61 System-tools-backends
realtime - 62 PulseAudio
pulse-access - 63 PulseAudio
pulse - 64 PulseAudio
camera - 70 (Suggested) libgphoto2
users - 1000 Configuring for Adding Users
nogroup - 65533 CLFS (Suggested), NFS Utilities
nobody 65534 65533 CLFS (Suggested), NFS Utilities