RH202 Exam Dumps : RHCT (Redhat Certified Technician) RH202

You are working as a System Administrator at Certpaper. Your Linux Server crashed and you lost every data. But you had taken the full backup of user’s home directory and other System Files on /dev/st0, how will you restore from that device?

Answer and Explanation:

1. Go to on that directory where you want to restore.

2. restore –rf /dev/st0

To restore from backup we use the restore command. Here backup will restore from /dev/st0 on current Directory.

There is one partition /dev/hda14 mounted on /data. The owner of /data is root user and root group. And Permission is full to owner user, read and execute to group member and no permission to others. Now you should give the full permission to user user1 without changing pervious permission.

Answer and Explanation:

We know that every files/directories are owned by certain user and group. And Permissions are defines to owner user, owner group and other.

-rwxr-x--- Full permission to owner user, read and write to owner group and no permission to others.

According to question: We should give the full permission to user user1 without changing the previous permission.

ACL (Access Control List), in ext3 file system we can give permission to certain user and certain group without changing previous permission. But that partition should mount using acl option. Follow the steps

• vi /etc/fstab

/dev/hda14/dataext3defaults,acl0 1

• Either Reboot or use: mount –o remount /data
• setfacl –m u:user1:rwx /data
• Verify using: getfacl /data

Who ever creates the files/directories on /archive group owner should be automatically should be the same group owner of /archive.

Answer and Explanation:

1.chmod g+s /archive

2.Verify using: ls -ld /archive

Permission should be like:

drwxrws--- 2 root sysuser 4096 Mar 16 18:08 /archive

If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory.

To set the SGID bit: chmod g+s directory

To Remove the SGID bit: chmod g-s directory