root:x:0:0:Super-User:/:/sbin/sh
daemon:x:1:1::/:
bin:x:2:2::/usr/bin:
sys:x:3:3::/:
adm:x:4:4:Admin:/var/adm:
lp:x:71:8:Line Printer Admin:/usr/spool/lp:
uucp:x:5:5:uucp Admin:/usr/lib/uucp:
nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico
smmsp:x:25:25:SendMail Message Submission Program:/:
listen:x:37:4:Network Admin:/usr/net/nls:
gdm:x:50:50:GDM Reserved UID:/:
webservd:x:80:80:WebServer Reserved UID:/:
postgres:x:90:90:PostgreSQL Reserved UID:/:/usr/bin/pfksh
unknown:x:96:96:Unknown Remote UID:/:
svctag:x:95:12:Service Tag UID:/:
nobody:x:60001:60001:NFS Anonymous Access User:/:
noaccess:x:60002:60002:No Access User:/:
nobody4:x:65534:65534:SunOS 4.x NFS Anonymous Access User:/:

root

0

Superuser account 

daemon

1

Umbrella system daemon associated with routine system tasks 

bin

2

Administrative daemon associated with running system binaries to perform some routine system task 

sys

3

Administrative daemon associated with system logging or updating files in temporary directories 

adm

4

Administrative daemon associated with system logging 

lp

71

Line printer daemon 

uucp

5

Daemon associated with uucp functions

nuucp

6

Another daemon associated with uucp functions

smmsp

25

Sendmail message submission program daemon 

webservd

80

Account reserved for WebServer access 

postgres

90

Account reserved for PostgresSQL access 

unknown

96

Account reserved for unmappable remote users in NFSv4 ACLs 

svctag

95

Service Tag Registry access 

gdm

50

GNOME Display Manager daemon 

listen

37

Network listener daemon 

nobody

60001

Account reserved for anonymous NFS access. 

noaccess

60002

Assigned to a user or a process that needs access to a system through some application but without actually logging in 

nobody4

65534

SunOS 4.0 or 4.1 version of the nobody user account