You must monitor existing groups and members to ensure that any unnecessary groups or group access is removed.

Procedure

  • Run the <host>:~ # cat /etc/group command to verify the minimum necessary groups and group membership.
    root:x:0:admin
    bin:x:1:daemon
    sys:x:2:
    kmem:x:3:
    tape:x:4:
    tty:x:5:
    daemon:x:6:
    floppy:x:7:
    disk:x:8:
    lp:x:9:
    dialout:x:10:
    audio:x:11:
    video:x:12:
    utmp:x:13:
    usb:x:14:
    cdrom:x:15:
    adm:x:16:admin
    messagebus:x:18:
    systemd-journal:x:23:admin
    input:x:24:
    mail:x:34:
    lock:x:54:
    dip:x:30:
    systemd-bus-proxy:x:72:
    systemd-journal-gateway:x:73:
    systemd-journal-remote:x:74:
    systemd-journal-upload:x:75:
    systemd-network:x:76:
    systemd-resolve:x:77:
    systemd-timesync:x:78:
    nogroup:x:65533:
    users:x:100:
    sudo:x:27:
    wheel:x:28:root,admin
    apache:x:25:admin,apache
    sshd:x:50:
    ntp:x:87:
    named:x:999:
    admin:x:1003:
    pivotal:x:1004:apache