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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.
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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. Persist FTP on boot
IPtables output chain
yum provides "*/sbin/sshd"
#yum
chkconfig vsftpd on

2. GUI File Manager
nautilus
rpm --import [public key location]
system-config-date
yum update

3. Import a public key
rpm localinstall pkg.rpm --nogpgcheck
#yum groupinstall "group name"
.spec
rpm --import [public key location]

4. Restart the ntpd service
$ tar xzvf home.tar.gz /home
service ntpd restart
yum search firefox
ssh-keygen

5. 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
# cat /var/log/messages | grep [Ff]ailed | less
tar czvf /tmp/etc.tar.gz /etc

6. Disks available for partitions
/dev
/etc/sysconfig/resolv.conf
tar xvzf /tmp/etc.tar.gz /etc
updating the kernel

7. Register on the RHN
rhn_register
rsync /home/test1.html root@server6.example.com:/var/pub
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
*.debug /var/log/debug.log service rsyslog restart

8. Create a tar ball with gzip compression of the home dir
system-config-date
yum info firefox4
2>&1
$ tar czvf home.tar.gz /home

9. Display packages that match the pathname
#iptables -I INPUT -p tcp --dport 21 -j Accept
yum provides
rpm localinstall pkg.rpm --nogpgcheck
yum update

10. GUI install / uninstall with yum
add/remove software GUI
# ls -l /usr/share/doc | grep httpd
system-config-firewall tui
#rpm -qi [package name]

11. File holding services - ports - protocols assoicated
# yum
/etc/services
GUI menu system/administratrion/firewall
2>&1

12. Install a pkg.rpm locally
rhn_register
rpm --import [public key location]
rpm localinstall pkg.rpm --nogpgcheck
tar czvf /tmp/etc.tar.gz /etc

13. Email related messages log
/var/log/messages
rsync -a /home/test1.html root@server6.example.com:/var/pub
# grep -i
/var/log/maillog

14. List VMs
yum provides
#virsh list
logwatch
cp /home/test1.html /var/www/html/test1.html

15. original DNS config file - still used
/etc/sysconfig/resolv.conf
IPtables forward chain
/etc/sysconfig/network
rsync /home root@server6.example.com:/tmp

16. Process packets coming out of the system
IPtables output chain
rsync /home/test1.html root@server6.example.com:/var/pub
$ tar czvf home.tar.gz /home
add/remove software GUI

17. Get information about a package named firefox4
yum info firefox4
vncviewer -via student@server6 localhost:2
rpm -ql vsftpd
$ tar xzvf home.tar.gz /home

18. Contains RPM database
/var/lib/rpm
#uname -r
$ grep -v ^# /etc/nsswitch.conf
IPtables input chain

19. Install a package group with yum
#rpm -qad [package name]
yum search firefox
#yum groupinstall "group name"
#uname -r

20. 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 groupinstall "group name"
#yum groupremove "group name"
yum remove firefox4

21. Update a package
rhn_register
/etc/hosts
yum update
#rpm -qa | grep [package name]

22. All messages sent at info priority or higher
/var/log/messages
IPtables input chain
# ls -l /usr/share/doc | grep httpd
#yum

23. Remote file copy /home/test1.html to the /var/pub directory on server6
service sshd restart
#uname -r
rsync /home/test1.html root@server6.example.com:/var/pub
/etc/sysconfig/network

24. Redirect errors to std out
#rpm -qac [package name]
nautilus
updating the kernel
2>&1

25. Install with RPM
rpm -qc httpd
# renice -10 proc-id
#iptables -I INPUT -p tcp --dport 21 -j Accept
#rpm -ivh [package name]

26. Program to analyze standard log files and send a summary email to root
cat >> some_file << _EOF
# ls -l /usr/share/doc | grep httpd
logwatch
/var/lib/rpm

27. Query information files with RPM
rsync /home root@server6.example.com:/tmp
#virsh list
#rpm -qi [package name]
/etc/sysconfig/vncservers rpm -ql tigervnc-server

28. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
ssh-keygen
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
vncpasswd
yum info firefox4

29. Start the GUI for date configuration
system-config-date
*.debug /var/log/debug.log service rsyslog restart
rpm -qp pkg.rpm
vncviewer -via student@server6 localhost:2

30. Package file named pkg.rpm
#virsh destroy domain-id
/etc/rsyslog.conf
vsftpd restart
rpm -qp pkg.rpm

31. Location of repo's
#iptables -D INPUT -p tcp --dport 21 -j accpet
vsftpd
/etc/hosts
/etc/yum.repos.d/

32. Local file copy of /home/test1.html to /var/www/html/test1.html
rpm -q pkg.rpm --scripts
2>&1
vsftpd restart
cp /home/test1.html /var/www/html/test1.html

33. tar options for create - extract - test - and verbose
ssh-keygen
tar cxtv
/etc/sysconfig/resolv.conf
yum list

34. Start vsftp service
#rpm -qi [package name]
vsftpd restart
#rpm -ivh [package name]
ssh-copy-id root@server6.example.com

35. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
#virsh list
vsftpd
#yum groupremove "group name"

36. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
/etc/sysconfig/network
cp /home/test1.html /var/www/html/test1.html
yum provides "*/sbin/sshd"
/etc/services

37. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
updating the kernel
tar xvzf /tmp/etc.tar.gz /etc

38. Extract a star compressed file
chkconfig httpd on
# star -x -f=home.star
#rpm -uvh [package name]
vncpasswd

39. Authentication related messages log
system-config-firewall tui
/etc/rsyslog.conf
rhn_register
/var/log/secure

40. Get a list of package groups from yum
#yum grouplist
cat >> some_file << _EOF
#yum
add/remove software GUI

41. Flush the firewall of all rules
$ tar czvf home.tar.gz /home
/var/log/secure
2>&1
#iptables -F

42. tar options for file name - gzip - and bzip2
cat >> some_file << _EOF
/var/log/messages
tar fzj
man search :/repository

43. Stores IPtables rules (filter) chains - input forward output are persistant
ntpdate -b instructor
$ tar xzvf home.tar.gz /home
yum install firefox4
/etc/sysconfig/iptables

44. fqdn
#yum remove [package name]
#rpm -qi [package name]
#yum groupremove "group name"
Fully Qualified Domain Name

45. Local host file (contains hostname). Can contain local system DNS.
/var/www/html/
#yum info [package name]
/etc/hosts
IPtables input chain

46. Create a symbolic link to /pub on the FTP and name it pub
tar fzj
/dev
yum update
ln -s /pub /var/www/html/pub

47. Configuration file for system logs
/etc/rsyslog.conf
/dev
logwatch
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)

48. Query configuration files with RPM
#rpm -qac [package name]
#iptables -I INPUT -p tcp --dport 21 -j Accept
service sshd restart
/etc/sysconfig/resolv.conf

49. Use lftp to connect
#rpm -qac [package name]
nautilus
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd

50. Show IP address with the IP command
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#yum install [package name]
ln -s /pub /var/www/html/pub
#ip addr show

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Can you answer 50 questions in 15 minutes?

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RHCSA Commands

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