Installation guide

92 Chapter 5. Users and Groups
Group GID Members
rpm 37 rpm
utmp 22
wnn 49
ntp 38
nscd 28
apache 48
mysql 27
mailnull 47
smmsp 51
rpc 32
xfs 43
gdm 42
rpcuser 29
nfsnobody 65534
ident 98
radvd 75
sshd 74
postgres 26
squid 23
named 25
pcap 77
wine 66
mailman 41
netdump 34
ldap 55
postdrop 90
postfix 89
privoxy 101
pvm 24
Table 5-2. Standard Groups
5.4. User Private Groups
Red Hat Linux uses a user private group (UPG) scheme, which makes UNIX groups easier to use.
The UPG scheme does not add or change anything in the standard UNIX way of handling groups;
it simply offers a new convention. Whenever you create a new user, by default, they have a unique
group. The scheme works as follows: