SIMULATIONAdd user: user1, set uid=601 Password: redhatThe user's login shell should be non-interactive.
Answer(s): A
# useradd -u 601 -s /sbin/nologin user1# passwd user1redhat
SIMULATIONAdd users: user2, user3.The Additional group of the two users: user2, user3 is the admin group Password: redhat
# useradd -G admin user2# useradd -G admin user3# passwd user2redhat# passwd user3redhat
SIMULATIONCopy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any permission.
# cp /etc/fstab /var/tmp/# chgrp admin /var/tmp/fstab# setfacl -m u:user1:rwx /var/tmp/fstab# setfacl -m u:user2:--- /var/tmp/fstab# ls -l-rw-rw-r--+ 1 root admin 685 Nov 10 15:29 /var/tmp/fstab
SIMULATIONConfigure a task: plan to run echo "file" command at 14:23 every day.
(a) Created as administrator# crontab -u natasha -e23 14 * * * /bin/echo "file"(b)Created as natasha# su - natasha$ crontab -e23 14 * * * /bin/echo "file"
SIMULATIONConfigure a default software repository for your system.One YUM has already provided to configure your system on http://server.domain11.example.com/pub/ x86_64/ Server, and can be used normally.
Yum-config-manager --add-repo=http://content.example.com/rhel7.0/x86-64/dvd” is to generate a file vim content.example.com_rhel7.0_x86_64_dvd.repo, Add a line gpgcheck=0YumcleanallYumrepolistAlmost 4305 packages are right, Wrong Yum Configuration will lead to some following questions cannot be worked out.
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