Correct Answer: Check the anser in explanation.

crontab –e –u natasha 23 14/bin/echo hiya crontab -l -u natasha // view systemctlenable crond systemcdlrestart crond

Correct Answer: Check the anser in explanation.

yum install vsftpd /etc/init.d/vsftpd start chkconfig vsftpd on

Correct Answer: Check the anser in explanation.

vim/etc/yum.repos/base.repo [base] name=base baseurl= http://server.domain11.example.com/pub/x86_64/Server gpgcheck=0 enable=1 Save and Exit Use yum list for validation, the configuration is correct if list the package information. If the Yum configuration is not correct then maybe cannot answer the following questions.

Correct Answer: Check the anser in explanation.

if=/dev/zero of=/swapfile bs=1M count=600 mkswap /swapfile /etc/fstab: /swapfile swap swap defaults 0 0 mount -a

Correct Answer: Check the anser in explanation.

1.

Use fdisk /dev/hda to create new partition.

2.

Type n For New partitions.

3.

It will ask for Logical or Primary Partitions. Press l for logical.

4.

It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.

5.

Type the Size: +100M you can specify either Last cylinder of size here.

6.

Press P to verify the partitions lists and remember the partitions name.

7.

Press w to write on partitions table.

8.

Either Reboot or use partprobe command.

9.

Use mkfs -t ext3 /dev/hda? OR mke2fs -j /dev/hda? To create ext3 filesystem. vi /etc/fstab Write: /dev/hda? /data ext3 defaults 1 2 Verify by mounting on current Sessions also: mount /dev/hda? /data

Correct Answer: Check the anser in explanation.

* [shangrila@node1 ~]$ podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d5ffe018a53c registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 5 seconds ago Up 4 seconds ago logserver [shangrila@node1 ~]$ podman stats logserver Error: stats is not supported in rootless mode without cgroups v2 [shangrila@node1 ~]$ podman stop logserver d5ffe018a53ca7eb075bf560d1f30822ab6fe51eba58fd1a8f370eda79806496 [shangrila@node1 ~]$ podman rm logserver Error: no container with name or ID logserver found: no such container [shangrila@node1 ~]$ mkdir -p container-journal/

* [shangrila@node1 ~]$ sudo systemctl restart systemd-journald [sudo] password for shangrila: [shangrila@node1 ~]$ sudo cp -av /var/log/journal/* container-journal/ [shangrila@node1 ~]$ sudo cp -av /var/log/journal/* container-journal/ [shangrila@node1 ~]$ sudo chown -R shangrila container-journal/ [shangrila@node1 ~]$ podman run -d --name logserver -v /home/shangrila/container- journal/:/var/log/journal:Z registry.domain15.example.com:5000/rhel8/rsyslog [shangrila@node1 ~]$ podman ps [shangrila@node1 ~]$ loginctl enable-linger [shangrila@node1 ~]$ loginctl show-user shangrila|grep -i linger Linger=yes

* [shangrila@node1 ~]$ podman stop logserver [shangrila@node1 ~]$ podman rm logserver [shangrila@node1 ~]$ systemctl --user daemon-reload [shangrila@node1 ~]$ systemctl --user enable --now container-logserver [shangrila@node1 ~]$ podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3903e1d09170 registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 4 seconds ago Up 4 seconds ago logserver [shangrila@node1 ~]$ systemctl --user stop container-logserver.service

* [shangrila@node1 ~]$ sudo reboot [shangrila@node1 ~]$ podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7e6cd59c506a registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 10 seconds ago Up 9 seconds ago logserver

Correct Answer: Check the anser in explanation.

*

[root@node1 ~]# cat /usr/share/mime/packages/freedesktop.org.xml | grep ich > /root/lines

[root@node1 ~]# cat /root/lines

Ficheru codificáu en BinHex de Machintosh

fichier codé Macintosh BinHex

ficheiro de Macintosh codificado con BinHex

fichièr encodat Macintosh BinHex

ficheiro codificado em BinHex de Macintosh

fichier boîte aux lettres

Correct Answer: Check the anser in explanation.

[root@node1 ~]# find / -name natasha -type f > /home/natasha/files [root@node1 ~]# cat /home/natasha/files /var/spool/mail/natasha /mnt/shares/natasha [root@node1 ~]# mkdir /find [root@node1 ~]# find /etc -size +5M > /find/largefiles [root@node1 ~]# cat /find/largefiles /etc/selinux/targeted/policy/policy.31 /etc/udev/hwdb.bin

Correct Answer: Check the anser in explanation.

* [root@node1 ~]# curl http://node1.domain15.example.com curl: (7) Failed to connect to node1.domain15.example.com port 80: Connection refused [root@node1 ~]# yum install httpd [root@node1 ~]# systemctl enable --now httpd Created symlink /etc/systemd/system/multi-user.target.wants/httpd.service /usr/lib/systemd/system/httpd.service. [root@node1 ~]# systemctl start httpd [root@node1 ~]# systemctl status httpd Status: "Running, listening on: port 80" * [root@node1 ~]# wget http://node1.domain15.example.com 2021-03-23 13:27:28 ERROR 403: Forbidden. [root@node1 ~]# semanage port -l | grep http http_port_t tcp 80, 81, 443, 488, 8008, 8009, 8443, 9000 [root@node1 ~]# semanage port -a -t http_port_t -p tcp 82 [root@node1 ~]# semanage port -l | grep http http_port_t tcp 82, 80, 81, 443, 488, 8008, 8009, 8443, 9000 [root@node1 ~]# firewall-cmd --zone=public --list-all [root@node1 ~]# firewall-cmd --permanent --zone=public --add-port=82/tcp [root@node1 ~]# firewall-cmd --reload

[root@node1 ~]# curl http://node1.domain15.example.com OK

* root@node1 ~]# wget http://node1.domain15.example.com:82 Connection refused. [root@node1 ~]# vim /etc/httpd/conf/httpd.conf Listen 82 [root@node1 ~]# systemctl restart httpd [root@node1 ~]# wget http://node1.domain15.example.com:82 2021-03-23 13:31:41 ERROR 403: Forbidden. [root@node1 ~]# curl http://node1.domain15.example.com:82 OK

Correct Answer: Check the anser in explanation.

* [root@node1 ~]# cp -p /etc/fstab /var/tmp/ [root@node1 ~]# ls -lrt /etc/fstab [root@node1 ~]# ls -lrt /var/tmp/fstab [root@node1 ~]# chmod a+x /var/tmp/fstab [root@node1 ~]# getfacl /var/tmp/fstab [root@node1 ~]# setfacl -m u:harry:rw- /var/tmp/fstab [root@node1 ~]# setfacl -m u:natasha:--- /var/tmp/fstab [root@node1 ~]# getfacl /var/tmp/fstab getfacl: Removing leading '/' from absolute path names # file: var/tmp/fstab # owner: root # group: root user::rwx user:harry:rwuser:natasha:--group::r-x mask::rwx other::r-x

* [root@node1 ~]# su - natasha [natasha@node1 ~]$ cat /var/tmp/fstab cat: /var/tmp/fstab: Permission denied