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. Install star
#yum
service sshd restart
# yum
ntpdate -b instructor

2. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
.spec
# yum
#yum remove [package name]
#uname -r

3. Search for a package within all packages
#rpm -qa | grep [package name]
tar xvzf /tmp/etc.tar.gz /etc
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
#yum info [package name]

4. Grep for lines that do not match (-v)
man search :/repository
rsync /home/test1.html root@server6.example.com:/var/pub
$ grep -v ^# /etc/nsswitch.conf
#yum groupremove "group name"

5. Disk Utility Command
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
rpm -ql vsftpd
*.debug /var/log/debug.log service rsyslog restart
palimpsest

6. Program to analyze standard log files and send a summary email to root
#rpm -qac [package name]
logwatch
tar cxtv
/etc/hosts

7. Repo config file
man search :/repository
/etc/sysconfig/network
[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
/var/log/messages

8. List VMs
yum info firefox4
#virsh list
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
# cat /var/log/messages | grep [Ff]ailed | less

9. Grep with ignoring case
man search :/repository
# vi /etc/inittab change - id:3:initdefault:
#yum grouplist
# grep -i

10. See files installed with a package named vsftpd
#yum groupinstall "group name"
# renice -10 proc-id
rpm -ql vsftpd
name-version-release.architecture.rpm

11. System config firewall
vsftpd
cp /home/test1.html /var/www/html/test1.html
GUI menu system/administratrion/firewall
system-config-firewall tui

12. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
$ tar czvf home.tar.gz /home
MailTo=student@server6.example.com
rhn_register
/usr/share/doc/initscripts-*/sysconfig.txt

13. See the configuration files installed with a package named httpd
rpm -qc httpd
/etc/hosts
cat >> some_file << _EOF
2>&1

14. Persist FTP on boot
rsync /home root@server6.example.com:/tmp
#yum groupremove "group name"
insert as opposed to append
chkconfig vsftpd on

15. Get information about a package named firefox4
#virsh list
#rpm -qac [package name]
yum info firefox4
yum provides

16. Start the GUI for date configuration
vncpasswd
/etc/yum.repos.d/
#iptables -L
system-config-date

17. GUI File Manager
vsftpd
# star -xattr -H=exustar -c -f=home.star /home/
ip masqu
nautilus

18. Delete a rule from iptables
/dev
#iptables -D INPUT -p tcp --dport 21 -j accpet
yum provides
IPtables input chain

19. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
# grep -i
insert as opposed to append
#yum info [package name]
#yum groupremove "group name"

20. Get a list of package groups from yum
tar fzj
#yum grouplist
updating the kernel
#rpm -qac [package name]

21. Disks available for partitions
#rpm -qa | grep [package name]
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
# grep -i
/dev

22. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
#yum
updating the kernel
/etc/sysconfig/vncservers rpm -ql tigervnc-server
insert as opposed to append

23. Authentication related messages log
/etc/yum.repos.d
rpm -q pkg.rpm --scripts
/var/log/secure
.spec

24. Start GUI for Firewall
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
[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-firewall tui
add/remove software GUI

25. handles dependencies while RPMs do not uses preconfigured repos
#yum
logwatch
chkconfig vsftpd on
/etc/sysconfig/vncservers rpm -ql tigervnc-server

26. Acting as a router with forwarding
/etc/yum.repos.d
ip masqu
$ tar czvf home.tar.gz /home
/var/log/maillog

27. Import a public key
rpm --import [public key location]
IPtables output chain
tar xvzf /tmp/etc.tar.gz /etc
insert as opposed to append

28. Install a package named firefox4
yum install firefox4
rpm localinstall pkg.rpm --nogpgcheck
IPtables output chain
chkconfig httpd on

29. Query configuration files with RPM
ln -s /pub /var/www/html/pub
/var/log/maillog
#rpm -qac [package name]
yum update

30. Restart vnc and persist on boot
service vncserver restart chkconfig vncserver on
logwatch
system-config-firewall tui
tar czvf /tmp/etc.tar.gz /etc

31. Stores filewall rules for the system.
/etc/sysconfig/iptables
$ tar czvf home.tar.gz /home
#iptables -D INPUT -p tcp --dport 21 -j accpet
vncpasswd

32. Adjust the persistent runlevel
yum search firefox
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
# vi /etc/inittab change - id:3:initdefault:
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

33. Shell config tool gropued like GUI firewall configurater.
system-config-firewall tui
vsftpd restart
rhn_register
man search :/repository

34. GUI install / uninstall with yum
add/remove software GUI
/etc/sysconfig/iptables
rsync -a /home/test1.html root@server6.example.com:/var/pub
/var/log/messages

35. Process packets being forwarded through the system
IPtables forward chain
ip masqu
logwatch
ntpdate -b instructor

36. File holding services - ports - protocols assoicated
yum update
/etc/services
ssh-keygen
#iptables -I INPUT -p tcp --dport 21 -j Accept

37. Restart ssh services
service sshd restart
# cat /var/log/messages | grep [Ff]ailed | less
yum provides
updating the kernel

38. List installed and available packages
yum list
rpm -q pkg.rpm --scripts
$ tar xzvf home.tar.gz /home
rsync -a /home/test1.html root@server6.example.com:/var/pub

39. Configuration for VNC
updating the kernel
ntpdate -b instructor
rpm -ql vsftpd
/etc/sysconfig/vncservers rpm -ql tigervnc-server

40. Generate SSH Keys
#uname -r
#iptables -I INPUT -p tcp --dport 21 -j Accept
# star -xattr -H=exustar -c -f=home.star /home/
ssh-keygen

41. Package file named pkg.rpm
cp /home/test1.html /var/www/html/test1.html
ip masqu
/etc/sysconfig/resolv.conf
rpm -qp pkg.rpm

42. fqdn
[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
# vi /etc/inittab change - id:3:initdefault:
# virsh create /etc/libvert/qemu/vm_file_name.xml
Fully Qualified Domain Name

43. Update a package
tar xvzf /tmp/etc.tar.gz /etc
# vi /etc/inittab change - id:3:initdefault:
yum provides
yum update

44. Set a VNC password
rpm --import [public key location]
#iptables -F
ln -s /pub /var/www/html/pub
vncpasswd

45. Configuration file for system logs
#rpm -qad [package name]
/etc/rsyslog.conf
rsync /home/test1.html root@server6.example.com:/var/pub
# virsh create /etc/libvert/qemu/vm_file_name.xml

46. Install the star compression tool create an archive with the star tool.
system-config-firewall tui
#iptables -L
# star -xattr -H=exustar -c -f=home.star /home/
nautilus

47. Documentation about sysconfig network scripts
/var/lib/rpm
# grep -i
tar cxtv
/usr/share/doc/initscripts-*/sysconfig.txt

48. List scripts that can be run after installation of pkg.rpm
system-config-firewall tui
#rpm -qa | grep [package name]
rpm -q pkg.rpm --scripts
#yum

49. List iptables
#rpm -qad [package name]
service sshd restart
ln -s /pub /var/www/html/pub
#iptables -L

50. Send all debug level messages to /var/log/debug.log
#rpm -qi [package name]
ip masqu
insert as opposed to append
*.debug /var/log/debug.log service rsyslog restart