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UIDs are numbers from zero to 65534. The numbers are grouped as follows:
UIDs 0-99 are globally allocated by the Debian project and are used for system accounts. The "root" account, for instance, is UID 0.
UIDs 100-999 are for system users which have not been allocated by the Debian project.
UIDs 1000-29999 are normal user accounts.
UID 65534 is user "nobody", an account with no rights or permissions.
创建另一个root帐号:adduser -u 0 -o -g 0 -G 0,1,2,3,4,6,10 -M root2
Adduser command explanations:
Set the value of user id to 0.
Set the initial group number or name to 0
Set supplementary group to:
0 = root
1 = bin
2 = daemon
3 = sys
4 = adm
6 = disk
10 = wheel |
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