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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
tune2fs
fdisk -l
parted /dev/hda print
dumpe2fs
2. rpm ____ to import the rpm key for integrity checking
filesystem type is not ext2 or ext3
wget (http://devmon.dev.schwab.com/index.html)
--import file
htpasswd -c /etc/httpd/webpass e
3. after extending file system "homevol" - unmount it and then run _____ to make the filesystem size match the new larger volume.
rpm -ivh --replacepkgs xxxx*
resize2fs /dev/myvg/homevol
setsebool -P squid_connect_any 1
nfs
4. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
squid -z
lvextend -L4G /dev/rootvg/tmplv
rpm -V pam
5. This line looks deceptively simple; it limits what readers see about your Web server when you browse to a nonexistent page. If you don't use this command - outsiders can see whether you've loaded modules such as Perl - Python - and PHP. Sharing this
yum install httpd
fdisk
grep "[.*]" server1.repo
ServerTokens OS from http.conf
6. when an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
5
rpm -ivh --replacepkgs xxxx*
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
rpm -qc httpd
7. after you edit /etc/exports - run service ___ stop...
nfs
resize2fs
yum -y update httpd
-i
8. The simplest way to install Apache
AllowOverride
e2fsadm
yum install httpd
rpm -ivh --replacepkgs xxxx*
9. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
NameVirtualHost
yum install httpd
hkconfig --list httpd
10. ___ to update the httpd package - automatically answering yes to all the questions
yum -y update httpd
setsebool -P squid_connect_any 1
CustomLog
-l
11. 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)
AllowOverride
yum update kernel
CustomLog
(rpm -q)p file (for rpmfile name)
12. This line placed in /etc/hosts.deny will mean that only computer allowed to access our Telnet server has an IP address of 192.168.1.10
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
telnetd : ALL EXCEPT 192.168.1.10
setsebool -P htttpd.enable.homedirs 1
resize2fs
13. Virtual Host Configuration: Names the URL for the virtual host.
yum install mod_ssl squid
yum update kernel
ServerName
NameVirtualHost
14. Create a disk label for the partition table called k
nfs
-i
arted; mklabel k
ok
15. use grep to count how many repositories have been configured in the file server1.repo
fdisk
chmod 701
rpm -qc httpd
grep "[.*]" server1.repo
16. ____ is used for creating ext2 and ext3 file systems
AllowOverride
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
(rpm -q)p file (for rpmfile name)
mke2fs
17. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
CustomLog
lvdisplay -D /dev/rootvg/tmplv
rpm -V zip
showmount -e
18. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
fdisk
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
--import file
hkconfig --list httpd
19. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
(rpm -q)p file (for rpmfile name)
ServerAdmin
fdisk
parted /dev/hda print
20. The main Squid configuration file is ____/squid.conf
select (followed by the device name such as /dev/hdb)
/etc/squid/
5
hkconfig --list httpd
21. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
tune2fs
-i (do not use -U or -F!)
fdisk -l
chkconfig --level 35 httpd on
22. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
yum install mod_ssl squid
wget (http://devmon.dev.schwab.com/index.html)
--import file
parted; check x
23. 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
iptables -F
rpm -V pam
setsebool -P squid_connect_any 1
mke2fs
24. rpm option to show me the package files
pirut
rpm -V
-l
select (followed by the device name such as /dev/hdb)
25. 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
pirut
/etc/lvmtab
squid -z
chcon -R -t httpd_sys_content_t /home/michael/public_html
26. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
(rpm -q)p file (for rpmfile name)
resize2fs
chmod 705
iptables -F
27. 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 ____
wget (http://devmon.dev.schwab.com/index.html)
elinks
htpasswd -c /etc/httpd/webpass e
rpm -qc httpd
28. ____ is used to modify file system parameters
ServerName
/boot
AllowOverride
tune2fs
29. You can use the ____ tool after installation to add any package groups that you missed.
arted; mklabel k
iptables -F
pirut
ErrorLog
30. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
showmount -a
AllowOverride
chmod 705
filesystem type is not ext2 or ext3
31. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
dd if=./diskboot.img of=/dev/sdc
arted; mklabel k
select (followed by the device name such as /dev/hdb)
32. The rpm ____ option installs the package - if it isn't already installed.
setsebool -P htttpd.enable.homedirs 1
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
-i
rpm -V zip
33. Some computers built before 1998 may have a BIOS that limits access to hard disks beyond the 1024th cylinder. Some older BIOSs report only 1024 cylinders on a hard drive no matter how many actual cylinders are present. Computers that are subject to t
-l
/boot
chcon -R -t httpd_sys_content_t /home/michael/public_html
resize2fs /dev/myvg/homevol
34. 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
telnetd : ALL EXCEPT 192.168.1.10
CustomLog
/etc/lvmtab
35. 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:
chmod 705
chmod 701
htpasswd -c /etc/httpd/webpass e
/boot
36. ____.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.
example
ok
chmod 701
select (followed by the device name such as /dev/hdb)
37. ;'___ /var/www' will tell you the ACL settings of /var/www
/boot
/etc/squid/
rpm -ivh --replacepkgs xxxx*
ls -Z
38. how to install both mod_ssl and squid packages
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
ServerAdmin
yum install mod_ssl squid
/boot
39. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
chcon -R -t httpd_sys_content_t /home/michael/public_html
hkconfig --list httpd
DocumentRoot
40. You can check the status of your share. If it's working - you should see the contents of the /etc/exports directory when you run the following command:
DocumentRoot
NameVirtualHost
chmod 705
showmount -e
41. logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
yum install mod_ssl squid
(rpm -q)p file (for rpmfile name)
ok
5
42. This line: in /etc/hosts.allow: telnetd : 172.16.72.0/255.255.254.0 is ____
chmod 705
/etc/lvmtab
ok
-K
43. This line placed in /etc/hosts.deny sends a customized error message for Telnet users on the crack.org domain saying sorry [insert client info] - access denied
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
grep "[.*]" server1.repo
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chkconfig --level 35 httpd on
44. 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
chmod 701
yum install mod_ssl squid
nfs
45. rpm ____ verifies the installed zip rpm against the rpm database
lvdisplay -D /dev/rootvg/tmplv
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
NameVirtualHost
rpm -V zip
46. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
(rpm -q)p file (for rpmfile name)
AllowOverride
showmount -a
NameVirtualHost
47. The file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
NameVirtualHost
ServerName
(rpm -q)p file (for rpmfile name)
48. 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:
service vsftpd status
parted; check x
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
ls -Z
49. Perform a simple check of the file system. minor-num is x.
example
CustomLog
/etc/lvmtab
parted; check x
50. create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
dd if=./diskboot.img of=/dev/sdc
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
e2fsadm