October 2022
Intermediate to advanced
500 pages
19h 57m
English
book
Security Strategies in Linux Platforms and Applications, 3rd Edition
by Ric Messier, Michael Jang
Content preview from Security Strategies in Linux Platforms and Applications, 3rd Edition
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Shadow Password Suite Commands
A variety of commands and tools are available to create, modify, and delete users and groups. Generally, the commands shown in Table 4-6 are well covered in more elementary Linux texts. As a security administrator, be prepared to use these commands frequently to make sure users and groups are created with appropriate levels of security.
TABLE 4-6 Standard user- and group-management commands.
| COMMAND | DESCRIPTION |
|---|---|
| useradd | Adds users to the shadow password suite based on defaults in /etc/login.defs except when modified by useradd command options. |
| usermod | Modifies user settings in the shadow password suite. |
| userdel | Deletes users. By itself, the command retains the user home directory. |
| groupadd | Creates a ... |