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. Messages related to cron log
IPtables input chain
/var/log/cron
#yum install [package name]
yum install tigervnc-server

2. Set process priority with renice - -20 highest - 20 lowest - 0 is default
/etc/sysconfig/iptables
$ tar xzvf home.tar.gz /home
yum provides "*/sbin/sshd"
# renice -10 proc-id

3. Persist FTP on boot
/etc/sysconfig/iptables
yum provides
tar xvzf /tmp/etc.tar.gz /etc
chkconfig vsftpd on

4. File holding services - ports - protocols assoicated
/var/www/html/
/etc/ssh/sshd_config
/etc/services
#iptables -D INPUT -p tcp --dport 21 -j accpet

5. 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
/var/log/maillog
IPtables forward chain
#uname -r

6. Local file copy of /home/test1.html to /var/www/html/test1.html
#iptables -D INPUT -p tcp --dport 21 -j accpet
cp /home/test1.html /var/www/html/test1.html
/etc/sysconfig/iptables
rpm -q pkg.rpm --scripts

7. Package file named pkg.rpm
# star -xattr -H=exustar -c -f=home.star /home/
updating the kernel
rpm -qp pkg.rpm
vsftpd restart

8. Install a package group with yum
#yum groupinstall "group name"
/etc/yum.repos.d
# virsh create /etc/libvert/qemu/vm_file_name.xml
/var/lib/rpm

9. Contains RPM database
vncviewer -via student@server6 localhost:2
nautilus
/var/lib/rpm
tar fzj

10. Edit files with cat until the _EOF is found
palimpsest
#yum grouplist
#rpm -qi [package name]
cat >> some_file << _EOF

11. Kill a VM
#virsh destroy domain-id
# vi /etc/inittab change - id:3:initdefault:
cp /home/test1.html /var/www/html/test1.html
rhn_register

12. Authentication related messages log
/etc/yum.repos.d/
/var/log/secure
#yum groupinstall "group name"
#yum install [package name]

13. All messages sent at info priority or higher
rsync -a /home/test1.html root@server6.example.com:/var/pub
#virsh list
#iptables -D INPUT -p tcp --dport 21 -j accpet
/var/log/messages

14. Grep with ignoring case
nautilus
#yum info [package name]
#yum remove [package name]
# grep -i

15. Backup a home directory on desktop6 to /tmp on server6
rpm localinstall pkg.rpm --nogpgcheck
#yum groupremove "group name"
#yum info [package name]
rsync /home root@server6.example.com:/tmp

16. Where are HTML pages hosted?
vsftpd restart
/var/www/html/
rpm --import [public key location]
#iptables -D INPUT -p tcp --dport 21 -j accpet

17. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
MailTo=student@server6.example.com
rpm -qp pkg.rpm
updating the kernel
yum info firefox4

18. Uninstall a package group with yum
#iptables -L
# grep -i
#yum groupremove "group name"
MailTo=student@server6.example.com

19. fqdn
Fully Qualified Domain Name
# cat /var/log/messages | grep [Ff]ailed | less
IPtables output chain
/etc/services

20. Import a public key
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
rpm --import [public key location]
[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
/var/log/cron

21. Repos for yum
ssh-copy-id root@server6.example.com
yum info firefox4
#ip addr show
/etc/yum.repos.d

22. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
#iptables -I INPUT -p tcp --dport 21 -j Accept
yum info firefox4
system-config-firewall tui
#yum info [package name]

23. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
rsync /home root@server6.example.com:/tmp
/etc/hosts
rpm -q pkg.rpm --scripts
.spec

24. Start the GUI for date configuration
rpm -qp pkg.rpm
ssh-copy-id root@server6.example.com
#virsh list
system-config-date

25. original DNS config file - still used
IPtables input chain
yum provides "*/sbin/sshd"
/dev
/etc/sysconfig/resolv.conf

26. Extract a star compressed file
# star -x -f=home.star
ip masqu
$ tar xzvf home.tar.gz /home
rsync /home root@server6.example.com:/tmp

27. Disks available for partitions
rpm --import [public key location]
/etc/sysconfig/iptables
/dev
/usr/share/doc/initscripts-*/sysconfig.txt

28. Documentation about sysconfig network scripts
rpm -q pkg.rpm --scripts
# ls -l /usr/share/doc | grep httpd
/usr/share/doc/initscripts-*/sysconfig.txt
tar cxtv

29. Remote file copy /home/test1.html to the /var/pub directory on server6
# star -xattr -H=exustar -c -f=home.star /home/
rsync /home/test1.html root@server6.example.com:/var/pub
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -qad [package name]

30. Configuration for VNC
service sshd restart
/etc/yum.repos.d
cat >> some_file << _EOF
/etc/sysconfig/vncservers rpm -ql tigervnc-server

31. Stores filewall rules for the system.
ssh-keygen
#yum info [package name]
vncviewer -via student@server6 localhost:2
/etc/sysconfig/iptables

32. Start GUI for Firewall
#rpm -qac [package name]
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
# star -x -f=home.star
rsync -a /home/test1.html root@server6.example.com:/var/pub

33. Display packages that match the pathname
ssh-copy-id root@server6.example.com
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
tar czvf /tmp/etc.tar.gz /etc
yum provides

34. Stores IPtables rules (filter) chains - input forward output are persistant
/etc/sysconfig/iptables
rpm -qp pkg.rpm
service ntpd restart
[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

35. Disk Utility Command
palimpsest
insert as opposed to append
tar fzj
system-config-firewall tui

36. Generate SSH Keys
/etc/sysconfig/network
/etc/yum.repos.d/
ssh-keygen
#yum install [package name]

37. Restart the ntpd service
/etc/sysconfig/network
service ntpd restart
logwatch
rpm -qc httpd

38. Install with RPM
#rpm -ivh [package name]
#yum install [package name]
tar xvzf /tmp/etc.tar.gz /etc
2>&1

39. Register on the RHN
yum remove firefox4
#yum info [package name]
rhn_register
.spec

40. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
#iptables -L
rpm -qp pkg.rpm
insert as opposed to append
yum provides "*/sbin/sshd"

41. Grep for lines that do not match (-v)
yum update
$ grep -v ^# /etc/nsswitch.conf
2>&1
cp /home/test1.html /var/www/html/test1.html

42. Install the star compression tool create an archive with the star tool.
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
tar fzj
rhn_register
# star -xattr -H=exustar -c -f=home.star /home/

43. Create a tar ball with gzip compression of the home dir
$ tar czvf home.tar.gz /home
# cat /var/log/messages | grep [Ff]ailed | less
yum update
yum provides "*/sbin/sshd"

44. Install a package named firefox4
vncviewer -via student@server6 localhost:2
cat >> some_file << _EOF
# grep -i
yum install firefox4

45. Use lftp to connect
#yum groupinstall "group name"
yum provides "*/sbin/sshd"
# ls -l /usr/share/doc | grep httpd
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

46. Query configuration files with RPM
#rpm -qac [package name]
#iptables -I INPUT -p tcp --dport 21 -j Accept
service ntpd restart
ln -s /pub /var/www/html/pub

47. List VMs
system-config-date
/var/lib/rpm
# yum
#virsh list

48. tar options for file name - gzip - and bzip2
IPtables input chain
tar xvzf /tmp/etc.tar.gz /etc
tar fzj
ntpdate -b instructor

49. Configuration file for system logs
/etc/sysconfig/network
/etc/rsyslog.conf
#yum groupinstall "group name"
/var/log/secure

50. Create a symbolic link to /pub on the FTP and name it pub
2>&1
chkconfig httpd on
ln -s /pub /var/www/html/pub
MailTo=student@server6.example.com