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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. File holding services - ports - protocols assoicated
ssh-copy-id root@server6.example.com
$ tar czvf home.tar.gz /home
/etc/services
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

2. Remove a package named firefox4
yum remove firefox4
rpm -q pkg.rpm --scripts
/etc/sysconfig/resolv.conf
rsync /home/test1.html root@server6.example.com:/var/pub

3. Install a package named firefox4
yum install firefox4
ssh-copy-id root@server6.example.com
#rpm -qa | grep [package name]
rpm --import [public key location]

4. Query information files with RPM
#yum remove [package name]
#yum groupinstall "group name"
#rpm -qi [package name]
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd

5. Location of repo's
/etc/yum.repos.d/
add/remove software GUI
nautilus
# virsh create /etc/libvert/qemu/vm_file_name.xml

6. Create a symbolic link to /pub on the FTP and name it pub
ln -s /pub /var/www/html/pub
#virsh list
chkconfig vsftpd on
.spec

7. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
insert as opposed to append
/usr/share/doc/initscripts-*/sysconfig.txt
tar cxtv
/var/log/secure

8. Install the star compression tool create an archive with the star tool.
system-config-firewall tui
palimpsest
/etc/hosts
# star -xattr -H=exustar -c -f=home.star /home/

9. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
# grep -i
#rpm -qac [package name]
man search :/repository

10. Query configuration files with RPM
Fully Qualified Domain Name
yum remove firefox4
IPtables input chain
#rpm -qac [package name]

11. Create a gzip-compressed backup of /etc in /tmp
yum search firefox
rsync /home/test1.html root@server6.example.com:/var/pub
tar czvf /tmp/etc.tar.gz /etc
# renice -10 proc-id

12. Persist the web server on boot
add/remove software GUI
chkconfig httpd on
#rpm -uvh [package name]
rsync -a /home/test1.html root@server6.example.com:/var/pub

13. List VMs
/var/www/html/
/var/log/cron
#virsh list
.spec

14. Import a public key
rpm --import [public key location]
# star -xattr -H=exustar -c -f=home.star /home/
# cat /var/log/messages | grep [Ff]ailed | less
yum update

15. Gets kernel version and release number
.spec
#uname -r
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
system-config-date

16. Messages related to cron log
/var/log/cron
nautilus
rsync /home root@server6.example.com:/tmp
vncpasswd

17. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
tar xvzf /tmp/etc.tar.gz /etc
IPtables output chain
updating the kernel
#yum

18. Sync ntp time with the instructor
tar xvzf /tmp/etc.tar.gz /etc
service vncserver restart chkconfig vncserver on
ntpdate -b instructor
rpm -q pkg.rpm --scripts

19. Authentication related messages log
yum remove firefox4
vsftpd
# cat /var/log/messages | grep [Ff]ailed | less
/var/log/secure

20. Where are HTML pages hosted?
/var/www/html/
#rpm -qi [package name]
ln -s /pub /var/www/html/pub
/var/log/secure

21. Shell config tool gropued like GUI firewall configurater.
#yum info [package name]
#uname -r
rpm -qc httpd
system-config-firewall tui

22. Set a VNC password
rsync /home root@server6.example.com:/tmp
/etc/hosts
vncpasswd
/etc/services

23. Extract /tmp/etc.tar.gz to /etc
tar xvzf /tmp/etc.tar.gz /etc
palimpsest
#virsh destroy domain-id
rhn_register

24. Local file copy of /home/test1.html to /var/www/html/test1.html
ntpdate -b instructor
cp /home/test1.html /var/www/html/test1.html
/etc/sysconfig/network
rpm --import [public key location]

25. Program to analyze standard log files and send a summary email to root
/dev
/var/log/maillog
#virsh destroy domain-id
logwatch

26. Register on the RHN
rhn_register
yum update
vncpasswd
#iptables -D INPUT -p tcp --dport 21 -j accpet

27. Configuration for VNC
#yum remove [package name]
/etc/sysconfig/vncservers rpm -ql tigervnc-server
GUI menu system/administratrion/firewall
yum install firefox4

28. List scripts that can be run after installation of pkg.rpm
rpm -q pkg.rpm --scripts
service sshd restart
#iptables -F
add/remove software GUI

29. Get a list of package groups from yum
/etc/services
rpm --import [public key location]
#yum grouplist
rhn_register

30. Searches for page within the #man yum
/etc/sysconfig/iptables
#yum info [package name]
#rpm -qa | grep [package name]
man search :/repository

31. Process packets coming into the system
IPtables input chain
IPtables output chain
rpm -qp pkg.rpm
system-config-firewall tui

32. Kill a VM
yum install tigervnc-server
/etc/hosts
yum install firefox4
#virsh destroy domain-id

33. Connect with VNC viewer securely
vncviewer -via student@server6 localhost:2
/var/log/messages
man search :/repository
service sshd restart

34. Search for a package with firefox in the description
chkconfig vsftpd on
#virsh list
insert as opposed to append
yum search firefox

35. Set process priority with renice - -20 highest - 20 lowest - 0 is default
# renice -10 proc-id
yum install tigervnc-server
GUI menu system/administratrion/firewall
/etc/ssh/sshd_config

36. Email related messages log
/var/log/secure
/var/log/maillog
# yum
yum provides "*/sbin/sshd"

37. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
$ grep -v ^# /etc/nsswitch.conf
yum info firefox4
.spec
#uname -r

38. Edit files with cat until the _EOF is found
cat >> some_file << _EOF
IPtables forward chain
rpm -q pkg.rpm --scripts
rsync /home/test1.html root@server6.example.com:/var/pub

39. Repo config file
rpm -ql vsftpd
ntpdate -b instructor
tar xvzf /tmp/etc.tar.gz /etc
[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

40. Install the VNC server package
# vi /etc/inittab change - id:3:initdefault:
yum provides "*/sbin/sshd"
ssh-keygen
yum install tigervnc-server

41. Install with RPM
#rpm -ivh [package name]
#uname -r
#yum info [package name]
ssh-keygen

42. Install a pkg.rpm locally
#iptables -F
# vi /etc/inittab change - id:3:initdefault:
IPtables input chain
rpm localinstall pkg.rpm --nogpgcheck

43. System config firewall
GUI menu system/administratrion/firewall
/etc/yum.repos.d
#rpm -qac [package name]
rpm -q pkg.rpm --scripts

44. List iptables
#iptables -L
# vi /etc/inittab change - id:3:initdefault:
/var/lib/rpm
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

45. Get information about a package named firefox4
.spec
/var/log/maillog
yum info firefox4
Fully Qualified Domain Name

46. List installed and available packages
*.debug /var/log/debug.log service rsyslog restart
yum list
ln -s /pub /var/www/html/pub
tar xvzf /tmp/etc.tar.gz /etc

47. Copy a public ssh key to server6
# cat /var/log/messages | grep [Ff]ailed | less
ssh-copy-id root@server6.example.com
# virsh create /etc/libvert/qemu/vm_file_name.xml
#iptables -D INPUT -p tcp --dport 21 -j accpet

48. tar options for create - extract - test - and verbose
chkconfig httpd on
tar cxtv
man search :/repository
/var/log/messages

49. Install a package with yum
rpm -ql vsftpd
service ntpd restart
#yum install [package name]
Fully Qualified Domain Name

50. Disks available for partitions
IPtables output chain
tar cxtv
Fully Qualified Domain Name
/dev

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Can you answer 50 questions in 15 minutes?

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RHCSA Commands

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