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Test your basic knowledge |
Redhat Linux Administration
Start Test
Study First
Subject
:
it-skills
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. use parted to display disk geometry for /dev/hda and end up in shell
rpm -V
/etc/lvmtab
NameVirtualHost
parted /dev/hda print
2. ____ can expand and shrink ext2 and ext3 file systems
pirut
dd if=./diskboot.img of=/dev/sdc
example
resize2fs
3. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
showmount -e
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
example
4. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -e
showmount -a
/etc/lvmtab
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
5. Create a disk label for the partition table called k
rpm -qc httpd
chmod 701
tune2fs
arted; mklabel k
6. for SELinux - you'll at least want to use the Security Level Configuration tool to activate the Allow Squid Daemon To Connect To The Network option - also known as the squid_connect_any boolean. Alternatively - you can activate this boolean with the
htpasswd -c /etc/httpd/webpass e
AllowOverride
setsebool -P squid_connect_any 1
resize2fs /dev/myvg/homevol
7. To update a kernel - 1) ____ 2) boot new kernel to test 3) revert to old kernel if problems 4) yum remove kernel-oldversion if no problems
NameVirtualHost
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ErrorLog
yum update kernel
8. how to install both mod_ssl and squid packages
chmod 705
yum install mod_ssl squid
setsebool -P htttpd.enable.homedirs 1
yum -y update httpd
9. in httpd.conf - "____ None" disables any .htaccess files. Otherwise - .htaccess can allow others to administer your server - starting from the DocumentRoot directory. If .htaccess is in a subdirectory - such as /var/www/html/data/ - the additional di
yum update kernel
showmount -e
AllowOverride
fdisk -l
10. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
/etc/lvmtab
yum install httpd
e2fsadm
ErrorLog
11. ___ shows me what config files were installed when the httpd package was installed
CustomLog
pirut
rpm -qc httpd
ServerName
12. ___ to update the httpd package - automatically answering yes to all the questions
yum -y update httpd
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
htpasswd -c /etc/httpd/webpass e
LVM
13. rpm ____ to import the rpm key for integrity checking
dd if=./diskboot.img of=/dev/sdc
rpm -V
--import file
resize2fs
14. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
setsebool -P htttpd.enable.homedirs 1
5
tune2fs
resize2fs /dev/myvg/homevol
15. You can use the ____ tool after installation to add any package groups that you missed.
bootable partitions
ServerName
pirut
AllowOverride
16. The main Squid configuration file is ____/squid.conf
CustomLog
DocumentRoot
/etc/squid/
rpm -ivh --replacepkgs xxxx*
17. You ran "e2label /dev/sda" and got "bad magic number" Why?
filesystem type is not ext2 or ext3
parted; check x
parted /dev/hda print
fdisk
18. The simplest way to install Apache
yum install httpd
yum clean all
(rpm -q)p file (for rpmfile name)
chmod 705
19. You need to configure firewalls and allow SELinux access in appropriate ways. Firewalls must allow access to the standard HTTP port - 80. SELinux must be configured to "Allow HTTPD To Read Home Directories". Finally - the ACL must be revised accordin
ok
yum clean all
rpm -V zip
chcon -R -t httpd_sys_content_t /home/michael/public_html
20. rpm ____ verifies the installed zip rpm against the rpm database
rpm -V zip
parted; check x
5
NameVirtualHost
21. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
ok
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
NameVirtualHost
iptables -F
22. rpm option to show me the package files
bootable partitions
-l
/etc/lvmtab
fdisk
23. Virtual Host Configuration: Creates an custom log; the location is based on the DocumentRoot. (from http://www.books24x7.com/book/id_18196/viewer.asp?bookid=18196&chunkid=218985502)
dumpe2fs
--import file
CustomLog
yum install httpd
24. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
lvdisplay -D /dev/rootvg/tmplv
chmod 705
telnetd : ALL EXCEPT 192.168.1.10
yum -y update httpd
25. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
fdisk -l
telnetd : ALL EXCEPT 192.168.1.10
wget (http://devmon.dev.schwab.com/index.html)
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
26. Run the ____ command to find the device associated with the USB key.
lvdisplay -D /dev/rootvg/tmplv
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
fdisk -l
ErrorLog
27. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
parted /dev/hda print
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
NameVirtualHost
rpm -qc httpd
28. if you want to create a database file named webpass in the /etc/httpd directory - for user "e" - you'd start with the following command:
DocumentRoot
htpasswd -c /etc/httpd/webpass e
rpm -Va
/etc/squid/
29. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael if you want /home/michael/public_html accessible
filesystem type is not ext2 or ext3
-i (do not use -U or -F!)
chmod 701
chkconfig --level 35 httpd on
30. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
DocumentRoot
dd if=./diskboot.img of=/dev/sdc
LVM
(rpm -q)p file (for rpmfile name)
31. Virtual Host Configuration: Sets a root directory for the virtual host.
dd if=./diskboot.img of=/dev/sdc
DocumentRoot
parted /dev/hda print
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
32. after extending file system "homevol" - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
dd if=./diskboot.img of=/dev/sdc
fdisk -l
-i
33. rpm ____ verifies all installed rpms against the rpm database
bootable partitions
rpm -Va
chkconfig --level 35 httpd on
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
34. If you configure other directories for Web services - you'll need to change their ACL settings. For example - if you create and then use the /www directory - run the following commands:
showmount -a
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
CustomLog
chmod 701
35. Virtual Host Configuration: Names the URL for the virtual host.
ServerName
lvdisplay -D /dev/rootvg/tmplv
yum clean all
fdisk -l
36. For linux ext2 there is an easier way than using resize2fs. LVM 1 ships with a utility called __________ which does the lvextend and resize2fs for you (it can also do file system shrinking)
e2fsadm
AllowOverride
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
-K
37. Perform a simple check of the file system. minor-num is x.
(rpm -q)p file (for rpmfile name)
service vsftpd status
parted; check x
showmount -a
38. create the basic cache directories in /var/spool/squid with the following command:
squid -z
fdisk -l
chkconfig --level 35 httpd on
elinks
39. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
ls -Z
showmount -a
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
40. ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V pam
fdisk
(rpm -q)p file (for rpmfile name)
arted; mklabel k
41. As you may not have access to the GUI during the Red Hat exams - you need to know how to use text-based browsers. The standard is ____
chmod 705
select (followed by the device name such as /dev/hdb)
elinks
arted; mklabel k
42. ;'___ /var/www' will tell you the ACL settings of /var/www
ls -Z
LVM
chkconfig --level 35 httpd on
/etc/squid/
43. To list under which run levels the web service will start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
hkconfig --list httpd
bootable partitions
telnetd : ALL EXCEPT 192.168.1.10
44. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/lvmtab
AllowOverride
/etc/squid/
45. When you configure Squid on your system - you need to allow access through appropriate ports and SELinux settings. The simplest approach with respect to Squid configuration assumes that all clients use the default Squid port 3128 - using TCP - where
showmount -a
htpasswd -c /etc/httpd/webpass e
chmod 705
iptables
46. rpm ____ [name of package] to verify the package - once you have manually imported the key
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
--import file
-K
yum install mod_ssl squid
47. after you edit /etc/exports - run service ___ stop...
chmod 701
nfs
ls -Z
CustomLog
48. ____.com - ____.net - and ____.org domains are generic domain names that can't be assigned on the Internet. You can therefore use any of these domain names on your private network.
rpm -qc httpd
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
CustomLog
example
49. Apache supports security by specifying active ports through the Listen and ____ directives.
(rpm -q)p file (for rpmfile name)
LVM
parted /dev/hda print
NameVirtualHost
50. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
chmod 705
yum install httpd
fdisk -l
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)