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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. Restart vnc and persist on boot
yum update
#iptables -L
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
service vncserver restart chkconfig vncserver on

2. Remove a package with yum
rpm localinstall pkg.rpm --nogpgcheck
system-config-date
#rpm -uvh [package name]
#yum remove [package name]

3. Persist the web server on boot
yum info firefox4
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
chkconfig httpd on
yum list

4. Redirect errors to std out
/etc/ssh/sshd_config
logwatch
2>&1
#yum remove [package name]

5. Shell config tool gropued like GUI firewall configurater.
yum install tigervnc-server
ssh-keygen
# cat /var/log/messages | grep [Ff]ailed | less
system-config-firewall tui

6. Connect with VNC viewer securely
vncviewer -via student@server6 localhost:2
# renice -10 proc-id
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -qac [package name]

7. All messages sent at info priority or higher
service sshd restart
/var/log/messages
2>&1
rpm -qp pkg.rpm

8. Install star
rsync /home root@server6.example.com:/tmp
# yum
rpm -qp pkg.rpm
/etc/ssh/sshd_config

9. Where are HTML pages hosted?
.spec
/var/www/html/
#yum
tar xvzf /tmp/etc.tar.gz /etc

10. Determine which package provides SSH
yum provides "*/sbin/sshd"
chkconfig httpd on
/etc/hosts
/etc/sysconfig/iptables

11. Kill a VM
ssh-keygen
yum list
#yum
#virsh destroy domain-id

12. Edit files with cat until the _EOF is found
.spec
# star -xattr -H=exustar -c -f=home.star /home/
$ grep -v ^# /etc/nsswitch.conf
cat >> some_file << _EOF

13. GUI File Manager
#uname -r
GUI menu system/administratrion/firewall
nautilus
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

14. Import a public key
vsftpd restart
rpm --import [public key location]
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
IPtables forward chain

15. List iptables
vncviewer -via student@server6 localhost:2
cp /home/test1.html /var/www/html/test1.html
#iptables -L
$ tar czvf home.tar.gz /home

16. Extract /tmp/etc.tar.gz to /etc
#rpm -qad [package name]
#rpm -qi [package name]
tar xvzf /tmp/etc.tar.gz /etc
/etc/hosts

17. Program to analyze standard log files and send a summary email to root
rhn_register
ip masqu
logwatch
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

18. List installed and available packages
yum list
tar czvf /tmp/etc.tar.gz /etc
yum install tigervnc-server
/var/www/html/

19. Start vsftp service
vsftpd restart
tar cxtv
# vi /etc/inittab change - id:3:initdefault:
rsync -a /home/test1.html root@server6.example.com:/var/pub

20. Extract a star compressed file
# star -x -f=home.star
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -uvh [package name]
yum list

21. Remove a package named firefox4
#iptables -L
yum remove firefox4
/etc/sysconfig/iptables
rpm -qc httpd

22. Backup a home directory on desktop6 to /tmp on server6
yum install firefox4
yum list
rsync /home root@server6.example.com:/tmp
nautilus

23. Install with RPM
vsftpd restart
# yum
#rpm -ivh [package name]
# cat /var/log/messages | grep [Ff]ailed | less

24. Authentication related messages log
/var/log/maillog
IPtables forward chain
#rpm -qac [package name]
/var/log/secure

25. See the configuration files installed with a package named httpd
/etc/rsyslog.conf
rpm -qc httpd
#rpm -qad [package name]
yum remove firefox4

26. GUI install / uninstall with yum
IPtables forward chain
chkconfig vsftpd on
tar czvf /tmp/etc.tar.gz /etc
add/remove software GUI

27. Extract a gzipped tar ball in your home directory
#rpm -qac [package name]
rsync /home root@server6.example.com:/tmp
$ tar xzvf home.tar.gz /home
tar fzj

28. Display packages that match the pathname
yum install firefox4
#yum groupinstall "group name"
yum provides
IPtables input chain

29. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
cat >> some_file << _EOF
/usr/share/doc/initscripts-*/sysconfig.txt
ln -s /pub /var/www/html/pub
.spec

30. Remote file copy /home/test1.html to the /var/pub directory on server6
name-version-release.architecture.rpm
rsync /home/test1.html root@server6.example.com:/var/pub
IPtables output chain
ssh-copy-id root@server6.example.com

31. Get information about a package named firefox4
/dev
# vi /etc/inittab change - id:3:initdefault:
rpm localinstall pkg.rpm --nogpgcheck
yum info firefox4

32. Install a package with yum
IPtables forward chain
#yum install [package name]
#iptables -I INPUT -p tcp --dport 21 -j Accept
/etc/sysconfig/vncservers rpm -ql tigervnc-server

33. Show IP address with the IP command
#ip addr show
# renice -10 proc-id
yum info firefox4
.spec

34. Stores filewall rules for the system.
/etc/sysconfig/iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
# star -x -f=home.star

35. Uninstall a package group with yum
#rpm -qi [package name]
rpm -ql vsftpd
cat >> some_file << _EOF
#yum groupremove "group name"

36. RPM package naming
name-version-release.architecture.rpm
yum update
rsync /home/test1.html root@server6.example.com:/var/pub
rsync /home root@server6.example.com:/tmp

37. Start a VM
#yum grouplist
/etc/ssh/sshd_config
# virsh create /etc/libvert/qemu/vm_file_name.xml
#virsh destroy domain-id

38. Restart ssh services
service sshd restart
rhn_register
rsync /home root@server6.example.com:/tmp
nautilus

39. Create a tar ball with gzip compression of the home dir
/etc/rsyslog.conf
/etc/sysconfig/resolv.conf
$ tar czvf home.tar.gz /home
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

40. Configuration file for system logs
#rpm -uvh [package name]
system-config-date
vncviewer -via student@server6 localhost:2
/etc/rsyslog.conf

41. Persist FTP on boot
yum install tigervnc-server
#yum
yum provides
chkconfig vsftpd on

42. File holding services - ports - protocols assoicated
/etc/services
ln -s /pub /var/www/html/pub
/etc/sysconfig/network
#yum

43. Install the star compression tool create an archive with the star tool.
service sshd restart
#iptables -I INPUT -p tcp --dport 21 -j Accept
vncviewer -via student@server6 localhost:2
# star -xattr -H=exustar -c -f=home.star /home/

44. Use lftp to connect
cp /home/test1.html /var/www/html/test1.html
rsync /home/test1.html root@server6.example.com:/var/pub
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
# star -x -f=home.star

45. Package file named pkg.rpm
rpm -qp pkg.rpm
/dev
# renice -10 proc-id
# vi /etc/inittab change - id:3:initdefault:

46. System config firewall
yum search firefox
2>&1
#ip addr show
GUI menu system/administratrion/firewall

47. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
vncviewer -via student@server6 localhost:2
/etc/yum.repos.d
MailTo=student@server6.example.com
ip masqu

48. Repos for yum
yum install tigervnc-server
/etc/yum.repos.d
# vi /etc/inittab change - id:3:initdefault:
add/remove software GUI

49. tar options for file name - gzip - and bzip2
service ntpd restart
tar fzj
nautilus
#rpm -qac [package name]

50. Email related messages log
/var/lib/rpm
logwatch
/var/log/maillog
rsync /home/test1.html root@server6.example.com:/var/pub