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. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
yum list
.spec
name-version-release.architecture.rpm
MailTo=student@server6.example.com

2. Send all debug level messages to /var/log/debug.log
#iptables -L
*.debug /var/log/debug.log service rsyslog restart
palimpsest
tar czvf /tmp/etc.tar.gz /etc

3. Show IP address with the IP command
# virsh create /etc/libvert/qemu/vm_file_name.xml
/usr/share/doc/initscripts-*/sysconfig.txt
#ip addr show
yum update

4. List installed and available packages
rpm -qp pkg.rpm
yum list
#yum grouplist
/var/lib/rpm

5. original DNS config file - still used
/var/log/secure
#iptables -I INPUT -p tcp --dport 21 -j Accept
/etc/sysconfig/resolv.conf
#iptables -D INPUT -p tcp --dport 21 -j accpet

6. See files installed with a package named vsftpd
rpm -ql vsftpd
#rpm -qi [package name]
#uname -r
/var/lib/rpm

7. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
logwatch
/etc/sysconfig/network
$ tar xzvf home.tar.gz /home
/etc/services

8. Documentation about sysconfig network scripts
#rpm -qa | grep [package name]
/usr/share/doc/initscripts-*/sysconfig.txt
/etc/sysconfig/iptables
#rpm -qac [package name]

9. Create a symbolic link to /pub on the FTP and name it pub
ln -s /pub /var/www/html/pub
/var/log/maillog
# ls -l /usr/share/doc | grep httpd
IPtables output chain

10. Generate SSH Keys
# renice -10 proc-id
yum install firefox4
ssh-keygen
#yum remove [package name]

11. Install the star compression tool create an archive with the star tool.
# star -xattr -H=exustar -c -f=home.star /home/
/etc/services
#iptables -F
[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

12. Install a package named firefox4
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -qad [package name]
yum install firefox4
tar xvzf /tmp/etc.tar.gz /etc

13. Disks available for partitions
/var/log/secure
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
$ tar xzvf home.tar.gz /home
/dev

14. List VMs
#virsh list
rpm --import [public key location]
# vi /etc/inittab change - id:3:initdefault:
service ntpd restart

15. All messages sent at info priority or higher
yum provides
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
/var/log/secure
/var/log/messages

16. Remove a package with yum
#yum groupremove "group name"
#yum remove [package name]
tar czvf /tmp/etc.tar.gz /etc
logwatch

17. List iptables
rpm -qp pkg.rpm
#iptables -L
tar fzj
vncpasswd

18. Flush the firewall of all rules
#virsh destroy domain-id
#iptables -F
GUI menu system/administratrion/firewall
#iptables -D INPUT -p tcp --dport 21 -j accpet

19. Process packets coming into the system
IPtables input chain
Fully Qualified Domain Name
vsftpd
[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

20. System config firewall
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
GUI menu system/administratrion/firewall
vsftpd
man search :/repository

21. Local host file (contains hostname). Can contain local system DNS.
#iptables -F
# grep -i
/etc/hosts
/etc/services

22. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
vncpasswd
#iptables -L
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
/etc/yum.repos.d/

23. 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
/etc/sysconfig/resolv.conf
vncviewer -via student@server6 localhost:2
*.debug /var/log/debug.log service rsyslog restart

24. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
rsync /home/test1.html root@server6.example.com:/var/pub
updating the kernel
palimpsest
name-version-release.architecture.rpm

25. Grep with ignoring case
/etc/sysconfig/iptables
yum install firefox4
# grep -i
$ grep -v ^# /etc/nsswitch.conf

26. GUI install / uninstall with yum
#yum grouplist
add/remove software GUI
yum provides
$ grep -v ^# /etc/nsswitch.conf

27. Extract /tmp/etc.tar.gz to /etc
# yum
tar xvzf /tmp/etc.tar.gz /etc
/etc/rsyslog.conf
#uname -r

28. Get more information on a package availale through yum
/etc/yum.repos.d
/var/www/html/
# ls -l /usr/share/doc | grep httpd
#yum info [package name]

29. Query configuration files with RPM
#rpm -qac [package name]
tar czvf /tmp/etc.tar.gz /etc
ip masqu
cat >> some_file << _EOF

30. tar options for create - extract - test - and verbose
nautilus
#iptables -D INPUT -p tcp --dport 21 -j accpet
tar cxtv
tar czvf /tmp/etc.tar.gz /etc

31. Searches for page within the #man yum
rsync -a /home/test1.html root@server6.example.com:/var/pub
#rpm -qad [package name]
/var/log/maillog
man search :/repository

32. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
$ grep -v ^# /etc/nsswitch.conf
#iptables -L
#uname -r

33. RPM package naming
/etc/rsyslog.conf
system-config-firewall tui
name-version-release.architecture.rpm
ssh-keygen

34. Search for command in the doc directory
# ls -l /usr/share/doc | grep httpd
yum update
logwatch
#iptables -L

35. Backup a home directory on desktop6 to /tmp on server6
cat >> some_file << _EOF
rsync /home root@server6.example.com:/tmp
#rpm -qac [package name]
yum info firefox4

36. Package file named pkg.rpm
yum search firefox
ip masqu
rpm -qp pkg.rpm
/var/www/html/

37. Query all documentation with RPM
#rpm -qa | grep [package name]
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
#uname -r
#rpm -qad [package name]

38. Copy a public ssh key to server6
cp /home/test1.html /var/www/html/test1.html
#iptables -I INPUT -p tcp --dport 21 -j Accept
updating the kernel
ssh-copy-id root@server6.example.com

39. Install star
#rpm -qa | grep [package name]
insert as opposed to append
/etc/yum.repos.d
# yum

40. Install a package group with yum
#yum groupinstall "group name"
/var/www/html/
# star -xattr -H=exustar -c -f=home.star /home/
#yum groupremove "group name"

41. Persist FTP on boot
vsftpd restart
chkconfig vsftpd on
#yum install [package name]
tar fzj

42. Install the VNC server package
# star -xattr -H=exustar -c -f=home.star /home/
/etc/hosts
2>&1
yum install tigervnc-server

43. Configuration for VNC
/etc/sysconfig/vncservers rpm -ql tigervnc-server
yum list
$ tar czvf home.tar.gz /home
$ tar xzvf home.tar.gz /home

44. Install a package with yum
#yum install [package name]
# yum
/var/log/messages
vncpasswd

45. Remote file copy /home/test1.html to the /var/pub directory on server6
yum remove firefox4
rsync /home/test1.html root@server6.example.com:/var/pub
# star -xattr -H=exustar -c -f=home.star /home/
#yum install [package name]

46. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
Fully Qualified Domain Name
insert as opposed to append
chkconfig httpd on
#yum

47. Restart vnc and persist on boot
# grep -i
tar fzj
IPtables output chain
service vncserver restart chkconfig vncserver on

48. GUI File Manager
nautilus
#yum info [package name]
#iptables -F
/etc/sysconfig/network

49. Query information files with RPM
name-version-release.architecture.rpm
#rpm -uvh [package name]
yum info firefox4
#rpm -qi [package name]

50. Uninstall a package group with yum
#yum groupremove "group name"
yum install tigervnc-server
#yum remove [package name]
rhn_register