User Create

The purpose of this document is to explain how to create a Linux user.

Normal person user

• username="josh" && homedir="/home/${username}" && useradd --home "${homedir}" --create-home "${username}"

• passwd "${username}"

  • vim /etc/sudoers

    • ## Allow root to run any commands anywhere

    • ...

    • josh ALL=(ALL) ALL

      • or

    • josh ALL=(ALL:ALL) ALL

Machine user

• username="opendkim"

• homedir="/var/run/opendkim"

• supp_groups="mail"

• initial_group="mail"

  • useradd --home "${homedir}" --gid "${initial_group}" --shell "/usr/sbin/nologin" "${username}"

    • useradd --home "${homedir}" --gid "${initial_group}" --groups "${supp_groups}" --shell "/usr/sbin/nologin" "${username}"

MySQL user

• username="mysql"; homedir="/var/mysql"; initial_group="mysql";

  • useradd --home "${homedir}" --gid "${initial_group}" --shell "/usr/sbin/nologin" "${username}"

    • • May need:

• • • groupadd "${initial_group}"

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