Pass the RedHat RHCSA EX200 Questions and answers with CertsForce

# cd /opt/

# mkdir dir

# find / -user harry -exec cp -rfp {} /opt/dir/ \;

When you Boot the System, it starts on default Runlevel specified in /etc/inittab:

Id:?:initdefault:

When System Successfully boot, it will ask for username and password. But you don't know the root's password. To change the root password you need to boot the system into single user mode. You can pass the kernel arguments from the boot loader.

1. Restart the System.

2. You will get the boot loader GRUB screen.

3. Press a and type 1 or s for single mode ro root=LABEL=/ rhgb queit s

4. System will boot on Single User mode.

5. Use passwd command to change.

6. Press ctrl+d

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1. Reboot the server pressing by Ctrl+Alt+Del

2. When the boot-loader menu appears, press the cursor keys to highlight the default boot-loader entry

3. Press e to edit the current entry.

4. Use the cursor keys to navigate to the line that starts with linux.

5. Press End to move the cursor to the end of the line.

6. Append rd.break to the end of the line.

7. Press Ctrl+x to boot using the modified configuration.

8. At the switch_root prompt

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switch_root:/# mount -o remount,rw /sysroot

switch_root:/# chroot /sysroot

sh-4.4# echo kexdrams | passwd --stdin root

Changing password for user root.

passwd: all authentication tokens updated successfully.

sh-4.4# touch /.autorelabel

sh-4.4# exit; exit

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Type exit twice to continue booting your system as usual.

Configure the client:

Yum -y install chrony

Vim /etc/chrony.conf

Add: server classroom.example.com iburst

Start: systemctl enable chronyd

systemctl restart chronyd

Validate: timedatectl status

df -hT

lvextend -L +100M /dev/vg0/vo

lvscan

xfs_growfs /home/ // home is LVM mounted directory

Note: This step is only need to do in our practice environment, you do not need to do in the real exam

resize2fs /dev/vg0/vo // Use this comand to update in the real exam df -hT

OR

e2fsck -f/dev/vg0/vo

umount /home

resize2fs /dev/vg0/vo required partition capacity such as 100M lvreduce -l 100M /dev/vg0/vo mount /dev/vg0/vo /home

df –Ht

Create a partition having size 5 GB and change the syste id '8e'.

use partprobe command

pvcreate /dev/hda9 Suppose your partition number is hda9.

vgextend test0 /dev/hda9 vgextend command add the physical disk on volume group.

lvextend -L+5120M /dev/test0/lvtestvolume

verify using lvdisplay /dev/test0/lvtestvolume.

vi /etc/httpd/conf.d/ssl.conf ServerName www.rhce.com DocumentRoot /var/www/rhce DirectoryIndex index.html index.htm ServerAdmin webmaster@rhce.com SSLEngine on SSLCertificateFile /etc/httpd/conf/ssl.crt/server.crt SSLCertificateKeyFile /etc/httpd/conf/ssl.key/server.key

cd /etc/httpd/conf

3 make testcert

Create the directory and index page on specified path. (Index page can download from ftp://server1.example.com at exam time)

service httpd start|restart

chkconfig httpd on

Apache can provide encrypted communications using SSL (Secure Socket Layer). To make use of encrypted communication, a client must request to https protocol, which is uses port 443. For HTTPS protocol required the certificate file and key file.

crontab -u mary -e

23 14 * * * echo "Hello World."

mkdir -p /mnt/iso

/etc/fstab:

/root/examine.iso /mnt/iso iso9660 loop 0 0 mount -a

mount | grep examine

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[root@host ~]#systemctl enable sssd.service

[root@host ~]#systemctl start sssg.service

[root@host ~]#getent passwd remoteuser15

[root@host ~]#yum install autofs

[root@host ~]#vim /etc/auto.master.d/home9.autofs

/netdir/remoteuser15 /etc/auto.home9

[root@host ~]#vim /etc/auto.home9

remoteuser15 –rw,sync utility.network15.example.com:/netdir/remoteuser15/&

[root@host ~]#systemctl enable autofs

[root@host ~]#systemctl restart autofs

[root@host ~]#su - remoteuser15