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. Show IP address with the IP command
#ip addr show
# vi /etc/inittab change - id:3:initdefault:
#yum remove [package name]
yum remove firefox4

2. Program to analyze standard log files and send a summary email to root
service ntpd restart
MailTo=student@server6.example.com
logwatch
#yum groupinstall "group name"

3. Search for command in the doc directory
yum provides "*/sbin/sshd"
rpm -ql vsftpd
system-config-date
# ls -l /usr/share/doc | grep httpd

4. Contains RPM database
/var/www/html/
logwatch
/var/lib/rpm
# grep -i

5. Remove a package with yum
/usr/share/doc/initscripts-*/sysconfig.txt
#yum remove [package name]
service sshd restart
# star -xattr -H=exustar -c -f=home.star /home/

6. Searches for page within the #man yum
#yum groupremove "group name"
man search :/repository
2>&1
palimpsest

7. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
/var/log/maillog
#yum groupinstall "group name"
.spec

8. Start a VM
rpm -q pkg.rpm --scripts
# virsh create /etc/libvert/qemu/vm_file_name.xml
/var/lib/rpm
yum list

9. Repo config file
[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
tar fzj
/usr/share/doc/initscripts-*/sysconfig.txt
#uname -r

10. Process packets being forwarded through the system
rsync /home/test1.html root@server6.example.com:/var/pub
rpm -qc httpd
IPtables forward chain
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

11. Disks available for partitions
/dev
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
rsync /home root@server6.example.com:/tmp
insert as opposed to append

12. Query information files with RPM
# vi /etc/inittab change - id:3:initdefault:
#rpm -qad [package name]
#rpm -qi [package name]
cp /home/test1.html /var/www/html/test1.html

13. RPM package naming
IPtables forward chain
/usr/share/doc/initscripts-*/sysconfig.txt
name-version-release.architecture.rpm
#yum remove [package name]

14. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
rpm -ql vsftpd
/etc/services
tar xvzf /tmp/etc.tar.gz /etc

15. Install with RPM
#rpm -ivh [package name]
2>&1
/var/log/cron
vsftpd

16. Configuration file for system logs
/etc/rsyslog.conf
yum install tigervnc-server
ssh-copy-id root@server6.example.com
#yum groupinstall "group name"

17. Disk Utility Command
ntpdate -b instructor
/usr/share/doc/initscripts-*/sysconfig.txt
palimpsest
/var/log/messages

18. Restart the ntpd service
service ntpd restart
vsftpd restart
yum list
#yum install [package name]

19. Rpm upgrade package u upgrade v verbose h hash
yum search firefox
#rpm -uvh [package name]
/etc/ssh/sshd_config
yum install firefox4

20. Adjust the persistent runlevel
# vi /etc/inittab change - id:3:initdefault:
yum install firefox4
[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

21. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
cat >> some_file << _EOF
#iptables -I INPUT -p tcp --dport 21 -j Accept
#rpm -qa | grep [package name]
# grep -i

22. Restart ssh services
2>&1
service sshd restart
#rpm -qac [package name]
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

23. Authentication related messages log
#rpm -qa | grep [package name]
#rpm -qac [package name]
service vncserver restart chkconfig vncserver on
/var/log/secure

24. Get more information on a package availale through yum
rsync /home root@server6.example.com:/tmp
yum install tigervnc-server
yum update
#yum info [package name]

25. Install star
/var/log/messages
#yum remove [package name]
/etc/hosts
# yum

26. Stores filewall rules for the system.
yum list
/etc/sysconfig/iptables
yum provides "*/sbin/sshd"
palimpsest

27. See the configuration files installed with a package named httpd
#rpm -uvh [package name]
rpm -qc httpd
#yum groupinstall "group name"
yum install tigervnc-server

28. Redirect errors to std out
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -qac [package name]
#virsh list
2>&1

29. Register on the RHN
rsync -a /home/test1.html root@server6.example.com:/var/pub
rhn_register
# vi /etc/inittab change - id:3:initdefault:
tar fzj

30. tar options for create - extract - test - and verbose
rsync /home/test1.html root@server6.example.com:/var/pub
tar cxtv
vncpasswd
tar czvf /tmp/etc.tar.gz /etc

31. Shell config tool gropued like GUI firewall configurater.
system-config-firewall tui
ssh-keygen
#rpm -ivh [package name]
/etc/hosts

32. Import a public key
/var/log/secure
rpm --import [public key location]
#rpm -qi [package name]
/var/www/html/

33. Acting as a router with forwarding
ip masqu
palimpsest
tar cxtv
insert as opposed to append

34. Query configuration files with RPM
# vi /etc/inittab change - id:3:initdefault:
# ls -l /usr/share/doc | grep httpd
#rpm -qac [package name]
/etc/sysconfig/network

35. Install a pkg.rpm locally
# renice -10 proc-id
/etc/sysconfig/iptables
rpm localinstall pkg.rpm --nogpgcheck
tar czvf /tmp/etc.tar.gz /etc

36. Search for a package within all packages
#rpm -qa | grep [package name]
nautilus
tar cxtv
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd

37. handles dependencies while RPMs do not uses preconfigured repos
rsync /home root@server6.example.com:/tmp
/etc/yum.repos.d
#yum
yum list

38. original DNS config file - still used
# yum
#yum info [package name]
/etc/sysconfig/resolv.conf
/var/www/html/

39. Grep for lines that do not match (-v)
/etc/ssh/sshd_config
vsftpd
yum search firefox
$ grep -v ^# /etc/nsswitch.conf

40. Backup a home directory on desktop6 to /tmp on server6
/var/www/html/
/etc/hosts
rsync /home root@server6.example.com:/tmp
#yum grouplist

41. Gets kernel version and release number
#uname -r
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#rpm -ivh [package name]
/var/log/cron

42. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
rsync -a /home/test1.html root@server6.example.com:/var/pub
#yum info [package name]
/etc/sysconfig/resolv.conf
/etc/sysconfig/iptables

43. Extract a gzipped tar ball in your home directory
yum info firefox4
$ tar xzvf home.tar.gz /home
rpm localinstall pkg.rpm --nogpgcheck
cp /home/test1.html /var/www/html/test1.html

44. Create a symbolic link to /pub on the FTP and name it pub
/etc/hosts
/etc/sysconfig/resolv.conf
ip masqu
ln -s /pub /var/www/html/pub

45. Determine which package provides SSH
#yum groupremove "group name"
yum provides "*/sbin/sshd"
name-version-release.architecture.rpm
[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

46. Remote file copy /home/test1.html to the /var/pub directory on server6
yum provides "*/sbin/sshd"
chkconfig vsftpd on
cp /home/test1.html /var/www/html/test1.html
rsync /home/test1.html root@server6.example.com:/var/pub

47. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
ln -s /pub /var/www/html/pub
/var/log/secure
#virsh destroy domain-id
/etc/sysconfig/network

48. Install the VNC server package
tar xvzf /tmp/etc.tar.gz /etc
# renice -10 proc-id
#yum install [package name]
yum install tigervnc-server

49. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
#rpm -qad [package name]
ntpdate -b instructor
updating the kernel
/var/log/secure

50. Location of repo's
#rpm -qi [package name]
*.debug /var/log/debug.log service rsyslog restart
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
/etc/yum.repos.d/