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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. FTP package used in RHEL 6
tar cxtv
# ls -l /usr/share/doc | grep httpd
chkconfig httpd on
vsftpd

2. Query information files with RPM
vsftpd restart
#rpm -qac [package name]
#rpm -qi [package name]
vncpasswd

3. Local file copy of /home/test1.html to /var/www/html/test1.html
cp /home/test1.html /var/www/html/test1.html
nautilus
ip masqu
ntpdate -b instructor

4. Install a package with yum
#iptables -F
#yum install [package name]
ssh-copy-id root@server6.example.com
rsync -a /home/test1.html root@server6.example.com:/var/pub

5. Remote file copy /home/test1.html to the /var/pub directory on server6
man search :/repository
logwatch
# grep -i
rsync /home/test1.html root@server6.example.com:/var/pub

6. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
service ntpd restart
#virsh list
*.debug /var/log/debug.log service rsyslog restart
.spec

7. Start the GUI for date configuration
IPtables forward chain
/etc/sysconfig/network
#iptables -I INPUT -p tcp --dport 21 -j Accept
system-config-date

8. Install star
# yum
rpm localinstall pkg.rpm --nogpgcheck
#yum grouplist
Fully Qualified Domain Name

9. List VMs
/etc/services
yum install tigervnc-server
#virsh list
$ grep -v ^# /etc/nsswitch.conf

10. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
GUI menu system/administratrion/firewall
/etc/yum.repos.d
rsync -a /home/test1.html root@server6.example.com:/var/pub
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

11. Update a package
rhn_register
rsync /home root@server6.example.com:/tmp
yum update
#yum remove [package name]

12. tar options for create - extract - test - and verbose
/etc/sysconfig/iptables
# vi /etc/inittab change - id:3:initdefault:
tar cxtv
tar czvf /tmp/etc.tar.gz /etc

13. Extract /tmp/etc.tar.gz to /etc
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
#iptables -L
ssh-keygen
tar xvzf /tmp/etc.tar.gz /etc

14. original DNS config file - still used
#rpm -ivh [package name]
/etc/sysconfig/resolv.conf
IPtables output chain
service ntpd restart

15. Primary configuration of ssh
#yum
# ls -l /usr/share/doc | grep httpd
#yum info [package name]
/etc/ssh/sshd_config

16. Get a list of package groups from yum
vncpasswd
#yum grouplist
$ grep -v ^# /etc/nsswitch.conf
yum install firefox4

17. Show IP address with the IP command
logwatch
#rpm -qac [package name]
#yum groupinstall "group name"
#ip addr show

18. Install with RPM
yum install firefox4
insert as opposed to append
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#rpm -ivh [package name]

19. Process packets coming into the system
service vncserver restart chkconfig vncserver on
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
IPtables input chain
palimpsest

20. Install a package named firefox4
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
#yum remove [package name]
chkconfig vsftpd on
yum install firefox4

21. Process packets being forwarded through the system
rpm -q pkg.rpm --scripts
#rpm -qi [package name]
/etc/ssh/sshd_config
IPtables forward chain

22. Query configuration files with RPM
#rpm -qac [package name]
service vncserver restart chkconfig vncserver on
/etc/yum.repos.d/
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

23. Copy a public ssh key to server6
#iptables -L
ssh-copy-id root@server6.example.com
add/remove software GUI
chkconfig httpd on

24. Generate SSH Keys
ip masqu
IPtables input chain
chkconfig vsftpd on
ssh-keygen

25. Start GUI for Firewall
cat >> some_file << _EOF
service sshd restart
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
tar fzj

26. Local host file (contains hostname). Can contain local system DNS.
MailTo=student@server6.example.com
nautilus
/etc/hosts
$ tar czvf home.tar.gz /home

27. Flush the firewall of all rules
#iptables -F
yum info firefox4
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
IPtables forward chain

28. Rpm upgrade package u upgrade v verbose h hash
#rpm -uvh [package name]
add/remove software GUI
#rpm -ivh [package name]
#iptables -D INPUT -p tcp --dport 21 -j accpet

29. Determine which package provides SSH
vsftpd
$ tar xzvf home.tar.gz /home
# virsh create /etc/libvert/qemu/vm_file_name.xml
yum provides "*/sbin/sshd"

30. Messages related to cron log
rsync /home root@server6.example.com:/tmp
/var/log/cron
/etc/sysconfig/vncservers rpm -ql tigervnc-server
# star -x -f=home.star

31. Gets kernel version and release number
#uname -r
#yum info [package name]
/var/www/html/
#yum grouplist

32. Configuration file for system logs
nautilus
ntpdate -b instructor
rhn_register
/etc/rsyslog.conf

33. Install a pkg.rpm locally
GUI menu system/administratrion/firewall
#iptables -D INPUT -p tcp --dport 21 -j accpet
rpm localinstall pkg.rpm --nogpgcheck
# virsh create /etc/libvert/qemu/vm_file_name.xml

34. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
Fully Qualified Domain Name
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
IPtables output chain
vsftpd

35. Install the VNC server package
yum install tigervnc-server
/etc/hosts
yum list
vncviewer -via student@server6 localhost:2

36. Get information about a package named firefox4
yum info firefox4
GUI menu system/administratrion/firewall
#yum info [package name]
rpm -ql vsftpd

37. Register on the RHN
palimpsest
rhn_register
/var/lib/rpm
#rpm -qi [package name]

38. Stores filewall rules for the system.
#iptables -L
vncviewer -via student@server6 localhost:2
#rpm -uvh [package name]
/etc/sysconfig/iptables

39. Package file named pkg.rpm
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
rpm -qp pkg.rpm
rpm localinstall pkg.rpm --nogpgcheck
vncpasswd

40. Location of repo's
yum provides "*/sbin/sshd"
rsync /home/test1.html root@server6.example.com:/var/pub
/etc/yum.repos.d/
rpm -ql vsftpd

41. Backup a home directory on desktop6 to /tmp on server6
rsync /home root@server6.example.com:/tmp
$ tar czvf home.tar.gz /home
# renice -10 proc-id
#yum install [package name]

42. Kill a VM
#virsh destroy domain-id
yum update
MailTo=student@server6.example.com
/var/log/secure

43. See the configuration files installed with a package named httpd
yum remove firefox4
/etc/sysconfig/resolv.conf
/etc/sysconfig/iptables
rpm -qc httpd

44. Acting as a router with forwarding
$ tar xzvf home.tar.gz /home
vncpasswd
#iptables -I INPUT -p tcp --dport 21 -j Accept
ip masqu

45. Grep with ignoring case
# star -x -f=home.star
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
/etc/yum.repos.d
# grep -i

46. Repo config file
/dev
rsync /home/test1.html root@server6.example.com:/var/pub
/var/log/messages
[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

47. Install a package group with yum
cp /home/test1.html /var/www/html/test1.html
ssh-keygen
#yum groupinstall "group name"
/dev

48. Process packets coming out of the system
IPtables output chain
GUI menu system/administratrion/firewall
/usr/share/doc/initscripts-*/sysconfig.txt
tar fzj

49. Delete a rule from iptables
#virsh list
#iptables -D INPUT -p tcp --dport 21 -j accpet
yum provides
rpm --import [public key location]

50. Edit files with cat until the _EOF is found
/var/log/messages
cat >> some_file << _EOF
#virsh list
/etc/hosts