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COP 4343 Unix System Administration

COP 4343 Unix System Administration. Unit 4: system administrator create users/groups. System Administrator Tasks. Setup/maintain systems Install software Create new user accounts Train users, help users solve problems Define procedures and policies

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COP 4343 Unix System Administration

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  1. COP 4343Unix System Administration Unit 4: system administrator create users/groups

  2. System Administrator Tasks • Setup/maintain systems • Install software • Create new user accounts • Train users, help users solve problems • Define procedures and policies • Keep up with technical developments

  3. Ethics and the System Administrator • System administrators are trusted employees • System administrators have access to valuable personal and business data • Legal and ethical rules control work of a system administrator

  4. User accounts • user account types: • root • regular user • special accounts • every user belongs to group(s)

  5. User accounts • Login with userid and password • ssh, login • Assume superuser privilege • su • sudo • visudo

  6. User accounts • 3 ways to create: • edit system files • useradd command family • graphical utility

  7. Create user accounts • edit system files: • /etc/passwd • /etc/group • /etc/shadow • additional tasks • set password: passwd • create user’s home directory • default content

  8. Create user accounts • useradd command family • useradd, userdel • groupadd, groupdel • /etc/skel directory

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