Test your basic knowledge |

RHCSA Commands

Subjects : certifications, it-skills, rhcsa

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Create a symbolic link to /pub on the FTP and name it pub
chkconfig vsftpd on
ln -s /pub /var/www/html/pub
Fully Qualified Domain Name
rsync /home/test1.html root@server6.example.com:/var/pub

2. Extract /tmp/etc.tar.gz to /etc
rpm -q pkg.rpm --scripts
tar xvzf /tmp/etc.tar.gz /etc
#yum info [package name]
/usr/share/doc/initscripts-*/sysconfig.txt

3. Install a package group with yum
yum remove firefox4
rpm -qp pkg.rpm
#yum groupinstall "group name"
/etc/sysconfig/iptables

4. Install with RPM
#rpm -ivh [package name]
rpm -q pkg.rpm --scripts
yum provides
/etc/ssh/sshd_config

5. Install the star compression tool create an archive with the star tool.
rsync /home root@server6.example.com:/tmp
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
# star -xattr -H=exustar -c -f=home.star /home/
rhn_register

6. Rpm upgrade package u upgrade v verbose h hash
/var/log/maillog
updating the kernel
# star -x -f=home.star
#rpm -uvh [package name]

7. Update a package
yum update
/etc/sysconfig/resolv.conf
#virsh list
rsync /home/test1.html root@server6.example.com:/var/pub

8. Copy a public ssh key to server6
rpm --import [public key location]
ssh-copy-id root@server6.example.com
man search :/repository
/etc/sysconfig/iptables

9. fqdn
#uname -r
/etc/rsyslog.conf
/var/www/html/
Fully Qualified Domain Name

10. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#ip addr show
yum provides "*/sbin/sshd"
.spec

11. Determine which package provides SSH
yum provides "*/sbin/sshd"
rpm -q pkg.rpm --scripts
IPtables forward chain
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)

12. Persist the web server on boot
#iptables -D INPUT -p tcp --dport 21 -j accpet
chkconfig httpd on
vncviewer -via student@server6 localhost:2
yum search firefox

13. Start the GUI for date configuration
yum provides
ntpdate -b instructor
[repo identifier] name=[repo name] baseurl=[repo url] enabled = 1 gpgcheck = 1 (0 for local system) gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release -file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta
system-config-date

14. Documentation about sysconfig network scripts
vsftpd
/var/lib/rpm
/etc/yum.repos.d/
/usr/share/doc/initscripts-*/sysconfig.txt

15. Uninstall a package group with yum
#yum groupremove "group name"
rpm -qc httpd
#rpm -qi [package name]
ntpdate -b instructor

16. Grep with ignoring case
# grep -i
rpm -q pkg.rpm --scripts
#yum grouplist
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

17. Sync ntp time with the instructor
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
.spec
ntpdate -b instructor
yum install tigervnc-server

18. Configuration file for system logs
/var/www/html/
/etc/rsyslog.conf
# grep -i
service vncserver restart chkconfig vncserver on

19. Grep for lines that do not match (-v)
/var/log/maillog
cat >> some_file << _EOF
$ grep -v ^# /etc/nsswitch.conf
rsync /home root@server6.example.com:/tmp

20. tar options for file name - gzip - and bzip2
/etc/sysconfig/iptables
tar fzj
# grep -i
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

21. Process packets being forwarded through the system
# star -xattr -H=exustar -c -f=home.star /home/
cp /home/test1.html /var/www/html/test1.html
IPtables forward chain
service ntpd restart

22. tar options for create - extract - test - and verbose
#rpm -qi [package name]
tar cxtv
/etc/yum.repos.d/
name-version-release.architecture.rpm

23. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
/etc/yum.repos.d
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
# star -x -f=home.star
#yum grouplist

24. Get information about a package named firefox4
yum list
MailTo=student@server6.example.com
yum info firefox4
#rpm -uvh [package name]

25. Install the VNC server package
system-config-firewall tui
#yum remove [package name]
yum install tigervnc-server
/var/log/messages

26. Install a package named firefox4
system-config-firewall tui
rpm -q pkg.rpm --scripts
yum install firefox4
#yum groupinstall "group name"

27. Backup a home directory on desktop6 to /tmp on server6
rsync /home root@server6.example.com:/tmp
yum provides
service ntpd restart
/etc/services

28. Restart ssh services
yum info firefox4
vncviewer -via student@server6 localhost:2
service sshd restart
/etc/yum.repos.d/

29. Kill a VM
tar cxtv
/usr/share/doc/initscripts-*/sysconfig.txt
#virsh destroy domain-id
/etc/rsyslog.conf

30. Create a gzip-compressed backup of /etc in /tmp
add/remove software GUI
tar cxtv
/var/log/secure
tar czvf /tmp/etc.tar.gz /etc

31. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
ssh-copy-id root@server6.example.com
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
vsftpd restart
#ip addr show

32. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
/etc/sysconfig/network
name-version-release.architecture.rpm
updating the kernel
MailTo=student@server6.example.com

33. Get a list of package groups from yum
#yum grouplist
#iptables -D INPUT -p tcp --dport 21 -j accpet
rpm --import [public key location]
/etc/yum.repos.d

34. Shell config tool gropued like GUI firewall configurater.
$ tar xzvf home.tar.gz /home
/var/log/cron
# virsh create /etc/libvert/qemu/vm_file_name.xml
system-config-firewall tui

35. Adjust the persistent runlevel
# vi /etc/inittab change - id:3:initdefault:
# virsh create /etc/libvert/qemu/vm_file_name.xml
vsftpd restart
yum install firefox4

36. Generate SSH Keys
rpm -ql vsftpd
rpm -qc httpd
ssh-keygen
rpm -qp pkg.rpm

37. Use lftp to connect
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
#ip addr show
IPtables input chain
/etc/rsyslog.conf

38. Contains RPM database
/var/lib/rpm
yum install firefox4
ssh-keygen
ip masqu

39. Program to analyze standard log files and send a summary email to root
#yum install [package name]
logwatch
rsync /home root@server6.example.com:/tmp
GUI menu system/administratrion/firewall

40. Set a VNC password
yum provides "*/sbin/sshd"
/var/log/messages
$ tar czvf home.tar.gz /home
vncpasswd

41. Install a package with yum
#rpm -qi [package name]
yum list
#rpm -uvh [package name]
#yum install [package name]

42. Persist FTP on boot
chkconfig vsftpd on
/etc/sysconfig/resolv.conf
vsftpd
rsync /home root@server6.example.com:/tmp

43. Connect with VNC viewer securely
ssh-keygen
/var/log/messages
vncviewer -via student@server6 localhost:2
yum info firefox4

44. Process packets coming out of the system
Fully Qualified Domain Name
chkconfig httpd on
vncviewer -via student@server6 localhost:2
IPtables output chain

45. Query information files with RPM
yum list
vncviewer -via student@server6 localhost:2
#rpm -qi [package name]
#rpm -qa | grep [package name]

46. Create a tar ball with gzip compression of the home dir
# virsh create /etc/libvert/qemu/vm_file_name.xml
$ tar czvf home.tar.gz /home
/usr/share/doc/initscripts-*/sysconfig.txt
yum remove firefox4

47. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
ssh-keygen
cat >> some_file << _EOF
/etc/yum.repos.d/
#iptables -I INPUT -p tcp --dport 21 -j Accept

48. Email related messages log
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
/var/log/maillog
tar xvzf /tmp/etc.tar.gz /etc
/var/www/html/

49. Install star
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
# yum
# cat /var/log/messages | grep [Ff]ailed | less
tar czvf /tmp/etc.tar.gz /etc

50. FTP package used in RHEL 6
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
/etc/hosts
vsftpd
tar czvf /tmp/etc.tar.gz /etc