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RHCSA Commands

Subjects : certifications, it-skills, rhcsa

Instructions:

Answer 50 questions in 15 minutes.
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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. Restart the ntpd service
#rpm -qac [package name]
#yum install [package name]
service ntpd restart
*.debug /var/log/debug.log service rsyslog restart

2. Repos for yum
/etc/yum.repos.d
#rpm -qac [package name]
yum install tigervnc-server
[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

3. Register on the RHN
# star -xattr -H=exustar -c -f=home.star /home/
yum provides "*/sbin/sshd"
#uname -r
rhn_register

4. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
rhn_register
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
nautilus
#uname -r

5. Configuration for VNC
IPtables input chain
/etc/ssh/sshd_config
/etc/services
/etc/sysconfig/vncservers rpm -ql tigervnc-server

6. Authentication related messages log
tar czvf /tmp/etc.tar.gz /etc
/var/log/secure
service vncserver restart chkconfig vncserver on
#rpm -ivh [package name]

7. Get information about a package named firefox4
#yum grouplist
insert as opposed to append
#virsh destroy domain-id
yum info firefox4

8. Search for a package with firefox in the description
/var/log/maillog
/etc/sysconfig/network
yum search firefox
# renice -10 proc-id

9. Local host file (contains hostname). Can contain local system DNS.
yum remove firefox4
rpm -q pkg.rpm --scripts
add/remove software GUI
/etc/hosts

10. Documentation about sysconfig network scripts
/etc/yum.repos.d
/usr/share/doc/initscripts-*/sysconfig.txt
rsync /home root@server6.example.com:/tmp
$ tar czvf home.tar.gz /home

11. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
insert as opposed to append
rpm --import [public key location]
cp /home/test1.html /var/www/html/test1.html
system-config-firewall tui

12. Sync ntp time with the instructor
ssh-copy-id root@server6.example.com
system-config-date
ntpdate -b instructor
/etc/yum.repos.d

13. Install star
# yum
#rpm -ivh [package name]
man search :/repository
IPtables forward chain

14. Query information files with RPM
$ tar czvf home.tar.gz /home
#rpm -qi [package name]
$ tar xzvf home.tar.gz /home
$ grep -v ^# /etc/nsswitch.conf

15. List iptables
nautilus
yum remove firefox4
#iptables -L
yum provides "*/sbin/sshd"

16. RPM package naming
cat >> some_file << _EOF
#virsh list
name-version-release.architecture.rpm
#rpm -qac [package name]

17. Show IP address with the IP command
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#ip addr show
MailTo=student@server6.example.com
ln -s /pub /var/www/html/pub

18. Edit files with cat until the _EOF is found
IPtables forward chain
cat >> some_file << _EOF
#rpm -qad [package name]
#iptables -D INPUT -p tcp --dport 21 -j accpet

19. Install a package named firefox4
yum list
name-version-release.architecture.rpm
yum install firefox4
yum provides

20. Redirect errors to std out
name-version-release.architecture.rpm
2>&1
rsync -a /home/test1.html root@server6.example.com:/var/pub
rpm -q pkg.rpm --scripts

21. Uninstall a package group with yum
#iptables -F
#yum groupremove "group name"
*.debug /var/log/debug.log service rsyslog restart
MailTo=student@server6.example.com

22. Start vsftp service
vncviewer -via student@server6 localhost:2
vsftpd restart
tar fzj
yum list

23. Start a VM
# virsh create /etc/libvert/qemu/vm_file_name.xml
chkconfig vsftpd on
ssh-copy-id root@server6.example.com
ip masqu

24. Remote file copy /home/test1.html to the /var/pub directory on server6
/var/log/messages
rsync /home/test1.html root@server6.example.com:/var/pub
/etc/sysconfig/iptables
/var/log/maillog

25. Get more information on a package availale through yum
#yum info [package name]
#virsh destroy domain-id
/usr/share/doc/initscripts-*/sysconfig.txt
rpm -ql vsftpd

26. tar options for file name - gzip - and bzip2
#yum info [package name]
tar fzj
yum search firefox
/var/log/secure

27. Grep with ignoring case
vsftpd restart
updating the kernel
/etc/hosts
# grep -i

28. All messages sent at info priority or higher
/var/log/messages
ssh-copy-id root@server6.example.com
rhn_register
*.debug /var/log/debug.log service rsyslog restart

29. Restart vnc and persist on boot
/var/lib/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
service vncserver restart chkconfig vncserver on
service ntpd restart

30. See the configuration files installed with a package named httpd
rpm -qc httpd
# star -x -f=home.star
rsync -a /home/test1.html root@server6.example.com:/var/pub
add/remove software GUI

31. Messages related to cron log
ssh-copy-id root@server6.example.com
/var/log/cron
#ip addr show
vncpasswd

32. Contains RPM database
service sshd restart
#uname -r
GUI menu system/administratrion/firewall
/var/lib/rpm

33. Backup a home directory on desktop6 to /tmp on server6
#ip addr show
IPtables forward chain
rsync /home root@server6.example.com:/tmp
/etc/sysconfig/vncservers rpm -ql tigervnc-server

34. Adjust the persistent runlevel
#iptables -I INPUT -p tcp --dport 21 -j Accept
2>&1
#rpm -qac [package name]
# vi /etc/inittab change - id:3:initdefault:

35. Start the GUI for date configuration
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
IPtables output chain
system-config-date
/var/log/cron

36. GUI File Manager
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
/var/log/messages
nautilus
ln -s /pub /var/www/html/pub

37. Configuration file for system logs
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
$ tar xzvf home.tar.gz /home
yum install firefox4
/etc/rsyslog.conf

38. Stores IPtables rules (filter) chains - input forward output are persistant
tar fzj
IPtables output chain
/etc/sysconfig/iptables
chkconfig httpd on

39. Shell config tool gropued like GUI firewall configurater.
rpm -ql vsftpd
#rpm -qad [package name]
system-config-firewall tui
#rpm -uvh [package name]

40. System config firewall
GUI menu system/administratrion/firewall
rsync /home/test1.html root@server6.example.com:/var/pub
#rpm -qad [package name]
rpm --import [public key location]

41. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
#yum grouplist
MailTo=student@server6.example.com
updating the kernel
# grep -i

42. Connect with VNC viewer securely
/var/log/cron
vncviewer -via student@server6 localhost:2
rsync /home root@server6.example.com:/tmp
ln -s /pub /var/www/html/pub

43. Restart ssh services
2>&1
rsync /home/test1.html root@server6.example.com:/var/pub
/usr/share/doc/initscripts-*/sysconfig.txt
service sshd restart

44. Install with RPM
#rpm -ivh [package name]
#virsh destroy domain-id
$ tar czvf home.tar.gz /home
Fully Qualified Domain Name

45. Searches for page within the #man yum
man search :/repository
add/remove software GUI
#yum groupinstall "group name"
#uname -r

46. Install a package group with yum
#yum groupinstall "group name"
#yum install [package name]
ip masqu
IPtables forward chain

47. 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
/etc/yum.repos.d
nautilus
/etc/yum.repos.d/

48. Extract a star compressed file
# star -x -f=home.star
#ip addr show
IPtables forward chain
vncpasswd

49. Create a gzip-compressed backup of /etc in /tmp
vncviewer -via student@server6 localhost:2
yum info firefox4
ip masqu
tar czvf /tmp/etc.tar.gz /etc

50. Where are HTML pages hosted?
Fully Qualified Domain Name
/var/log/messages
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
/var/www/html/

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Can you answer 50 questions in 15 minutes?

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RHCSA Commands

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