최신RedHat Redhat Certified Technician on Redhat Enterprise Linux 5 (Labs) - RH202무료샘플문제

A. 1. vi /etc/resolv.conf Write : nameserver 192.168.0.254

B. 1. vi /etc/resolv.conf Write : nameserver 192.167.0.251

A. #vi /etc/resolv.conf nameserver 172.24.254.254 # dig server1.example.com #host server1.example.com DNS is the Domain Name System, which maintains a database that can help your computer translate domain names such as www.redhat.com to IP addresses such as
216.148.218.197. As no individual DNS server is large enough to keep a database for the entire Internet, they can refer requests to other DNS servers. DNS is based on the named daemon, which is built on the BIND (Berkeley Internet Name Domain) package developed through the Internet Software Consortium Users wants to access by name so DNS will interpret the name into ip address. You need to specify the Address if DNS server in each and every client machine. In Redhat Enterprise Linux, you need to specify the DNS server into /etc/resolv.conf file. After Specifying the DNS server address, you can verify using host, dig and nslookup commands.

B. #vi /etc/resolv.conf nameserver 172.24.254.254 # dig server1.example.com #host server1.example.com DNS is the Domain Name System, which maintains a database that can help your computer translate domain names such as www.redhat.com to IP addresses such as
216.148.218.197. As no individual DNS server is large enough to keep a database for the entire Internet, they can refer requests to other DNS servers.

A. Login as a root user
cat >schedule.txt
30 05 * * * /bin/echo "Hello"
crontab -u jeff schedule.txt
4. service crond restart The cron system is essentially a smart alarm clock. When the alarm sounds, Linux runs the commands of your choice automatically. You can set the alarm clock to run at all sorts of regular time intervals. Alternatively, the at system allows you to run the command of your choice once, at a specified time in the future. Red Hat configured the cron daemon, crond. By default, it checks a series of directories for jobs to run, every minute of every hour of every day. The crond checks the /var/spool/cron directory for jobs by user. It also checks for scheduled jobs for the computer under /etc/crontab and in the /etc/cron.d directory.

B. Login as a root user
cat >schedule.txt
30 05 * * * /bin/echo "Hello"
crontab -u jeff schedule.txt
4. service crond restart The cron system is essentially a smart alarm clock. When the alarm sounds, Linux runs the commands of your choice automatically. You can set the alarm clock to run at all sorts of regular time intervals. Alternatively, the at system allows you to run the command of your choice once, at a specified time in the future. Red Hat configured the cron daemon, crond. By default, it checks a series of directories for jobs to run, every minute of every hour of every day. The crond checks the /var/spool/cron directory for jobs by user. It also checks for scheduled jobs for the computer under /etc/crontab and in the /etc/cron.d directory. Here is the format of a line in crontab. Each of these columns is explained in more detail: #minute, hour, day of month, month, day of week, command * * * * * command Entries in a crontab Command Line Field Value Minute 0-59 Hour Based on a 24-hour clock; for example, 23 = 11 p.m. Day of month 1-31 Month 1-12, or jan, feb, mar, etc. Day of week 0-7; where 0 and 7 are both Sunday; or sun, mon, tue, etc. Command The command you want to run

A. 2. rpm -ivh ftp://server1.example.com/pub/kernel-hugemem-*
2. vi /etc/grub.conf Set the default to new kernel default=0 Example of /etc/grub.conf
default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Red Hat Enterprise Linux ES (2.6.9-5.ELhugemem)
root (hd0,0) kernel /vmlinuz-2.6.9-5.ELhugemem ro root=LABEL=/1 rhgb quiet initrd
rpm command is used to install, update and remove the rpm package. -ivh option is install, verbose, and display the hash mark.

B. 2. rpm -ivh ftp://server1.example.com/pub/kernel-hugemem-*
2. vi /etc/grub.conf Set the default to new kernel default=0 Example of /etc/grub.conf
default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Red Hat Enterprise Linux ES (2.6.9-5.ELhugemem)
root (hd0,0) kernel /vmlinuz-2.6.9-5.ELhugemem ro root=LABEL=/1 rhgb quiet initrd /initrd-2.6.9-5.ELhugemem.img
title Red Hat Enterprise Linux ES (2.6.9-5.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-5.EL ro root=LABEL=/1 rhgb quiet
initrd /initrd-2.6.9-5.EL.img
rpm command is used to install, update and remove the rpm package. -ivh option is install, verbose, and display the hash mark.

A. Insert the CD on CD-ROM and start the system.
In Boot: Prompt type linux askmethod
It will display the language, keyboard selection.
It will ask you for the installation method.
Select the NFS Image from the list
It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
Create the partition According to the QUESTION because Size and what-what partition should you create at installation time is specified in your QUESTION
Create the two RAID partitions having equal size of remaining all free space.
Click on RAID button
Type mount point /data
Select RAID Level 0
Click on ok
Then select the MBR Options, time zone and go upto package selections. It is another Most Important Time of installation. Due to the time limit, you should care about the installation packages. At Exam time you these packages are enough. X-Window System GNOME Desktop (these two packages are generally not required) Administration Tools. System Tools Windows File Server FTP Servers Mail Servers Web Servers Network Servers Editors Text Based Internet Server Configuration Tools Printing Supports When installation will complete, your system will reboot. Jump for another QUESTION.

B. Insert the CD on CD-ROM and start the system.
In Boot: Prompt type linux askmethod
It will display the language, keyboard selection.
It will ask you for the installation method.
Select the NFS Image from the list
It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
Create the partition According to the QUESTION because Size and what-what partition should you create at installation time is specified in your QUESTION
Create the two RAID partitions having equal size of remaining all free space.
Click on RAID button
Type mount point /data
Select RAID Level 0
Click on ok
Then select the MBR Options, time zone and go upto package selections. It is another Most Important Time of installation. Due to the time limit, you should care about the installation packages. At Exam time you these packages are enough.

A. QUESTIONs asking you to install the dialog package from the server. In your Lab FTP server as well as NFS server are configured. You can install either through FTP or NFS.
Just Login to server1.example.com through FTP: ftp server1.example.com
Enter to pub directory: cd pub
Logout from the FTP server: bye
Install the package: rpm -ivh dialog-*
Verify the package either installed or not: rpm -q dialog

B. QUESTIONs asking you to install the dialog package from the server. In your Lab FTP server as well as NFS server are configured. You can install either through FTP or NFS.
Just Login to server1.example.com through FTP: ftp server1.example.com
Enter to pub directory: cd pub
Enter to RedHat/RPMS: cd RedHat/RPMS
Download the Package: mget dialog-*
Logout from the FTP server: bye
Install the package: rpm -ivh dialog-*
Verify the package either installed or not: rpm -q dialog

A. Examiner will provide you the Installation startup CD . And here mentioned size may vary see on the exam paper.
Insert the CD on CD-ROM and start the system.
In Boot: Prompt type linux askmethod
It will display the language, keyboard selection.
It will ask you for the installation method.
Select the NFS Image from the list
It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
Create the partition According to the QUESTION because Size and what-what partition should you create at installation time is specified in your QUESTION
Then select the MBR Options, time zone and go upto package selections. It is another Most Important Time of installation. Due to the time limit, you should care about the installation packages. At Exam time you these packages are enough. X-Window System GNOME Desktop (these two packages are generally not required) Administration Tools. System Tools Windows File Server FTP Servers Mail Servers Web Servers Network Servers Editors Text Based Internet Server Configuration Tools Printing Supports When installation will complete, your system will reboot. Jump for another QUESTION.

B. Examiner will provide you the Installation startup CD . And here mentioned size may vary see on the exam paper.
Insert the CD on CD-ROM and start the system.
In Boot: Prompt type linux askmethod
It will display the language, keyboard selection.
It will ask you for the installation method.
Select the NFS Image from the list
It will ask the IP Address, Net mask, Gateway and Name Server. Select Use Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
It will ask for the NFS Server Name and Redhat Enterprise Linux Directory. Specify the NFS Server: 192.168.0.254 Directory: /var/ftp/pub
After Connecting to the NFS Server Installation start in GUI. Go up to the partition screen by selecting the different Options.
Create the partition According to the QUESTION because Size and what-what partition should you create at installation time is specified in your QUESTION.

A. useradd user1
useradd user2
useradd user3
passwd user1
passwd user2
6. passwd user3 We create the user using useradd command and we change the password of user using passwd command. If you want to set the blank password use: passwd -d username.

B. useradd user1
useradd user3
useradd user4
passwd user2
passwd user2
6. passwd user3 We create the user using useradd command and we change the password of user using passwd command. If you want to set the blank password use: passwd -d username.

A. 1. dump -0u -f /tmp/back /dev/hda4
dump is the standard backup utility. According to the QUESTIONs, fullback should take. -0 means fullback, -u means update the /etc/dumpdates which maintains the backup record and -f means filename. If you are directly taking backup into other device, you can specify the device name.
i.e dump -0u -f /dev/st0 /dev/hda4. Where hda4 is a separate partition mounted on /home.

B. 1. dump -0u -f /tmp/back /dev/hda5
dump is the standard backup utility. According to the QUESTIONs, fullback should take. -1 means fullback, -u means update the /etc/dumpdates which maintains the backup record and -f means filename. If you are directly taking backup into other device, you can specify the device name.
i.e dump -0u -f /dev/st0 /dev/hda5. Where hda4 is a separate partition mounted on /home.

A. chmod 770 /archive
Verify using : ls -ld /archive Preview should be like: drwxrwx--- 2 root sysuser 4096 Mar 16 18:08 /archive To change the permission on directory we use the chmod command. According to the QUESTION that only the owner user (root) and group member (sysuser) can fully access the directory so: chmod 770 /archive

B. chmod 770 /archive
Verify using : ls -ld /archive Preview should be like: drwxrwx--- 2 root sysuser 4090 Mar 16 18:08 /archive To change the permission on directory we use the chmod command. According to the QUESTION that only the owner user (root) and group member (sysuser) can fully access the directory so: chmod 880 /archive

A. vi /var/schedule 30 17 * * * /sbin/dump -0u /dev/st0 /dev/hda7
crontab /var/schedule
service crond restart We can add the cron schedule either by specifying the scripts path on /etc/crontab file or by creating on text file on crontab pattern. Month Day of Week Commands
0-59 0-23 1-31 1-12 0-7 where 0 and 7 means Sunday. Note * means every. To execute the command on every two minutes */2.

B. vi /var/schedule 30 17 * * * /sbin/dump -0u /dev/st0 /dev/hda7
crontab /var/schedule
service crond restart We can add the cron schedule either by specifying the scripts path on /etc/crontab file or by creating on text file on crontab pattern. cron helps to schedule on recurring events. Pattern of cron is: Minute Hour Day of Month Month Day of Week Commands
0-59 0-23 1-31 1-12 0-7 where 0 and 7 means Sunday. Note * means every. To execute the command on every two minutes */2.

A. 1. Create the repository file
#vi /etc/yum.repos.d/server2.repo
baseurl=ftp://server1.example.com/pub/ enabled=1
gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release # yum install <packagename>

B. 1. Create the repository file
#vi /etc/yum.repos.d/server1.repo [station?] name=station? baseurl=ftp://server1.example.com/pub/ enabled=1
gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release # yum install <packagename>

A. Use fdisk /dev/hda-> To create new partition.
Type n-> For New partitions
It will ask for Logical or Primary Partitions. Press l for logical.
It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
Type the Size: +100M-> You can Specify either Last cylinder of Size here.
Press P to verify the partitions lists and remember the partitions name.
Press w to write on partitions table.
Either Reboot or use partprobe command.
Use mkfs -t ext3 /dev/hda? Where ? is your partition number
Or
mke2fs -j /dev/hda? ->To create ext3 filesystem.
mkdir /mnt/neo
vi /etc/fstab
Write:
/dev/hda? /mnt/neo ext3 defaults 1 2
Verify by mounting on current Sessions also:
mount /dev/hda? /mnt/neo
Installation and Configuration Section, Introduction Lab Scenario:
There are two networks 172.24.0.0/16 and 172.25.0.0/16. As well as there are two domains example.com on 172.24.0.0/16 network and cracker.org on 172.25.0.0/16 network. Your system is based on example.com domain.
Installation and Configuration (51 QUESTIONs)

B. Use fdisk /dev/hda-> To create new partition.
Type n-> For New partitions
It will ask for Logical or Primary Partitions. Press l for logical.
It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
Type the Size: +100M-> You can Specify either Last cylinder of Size here.
Press P to verify the partitions lists and remember the partitions name.
Press w to write on partitions table.
Or
mke2fs -j /dev/hda? ->To create ext3 filesystem.
mkdir /mnt/neo
vi /etc/fstab
Write:
/dev/hda? /mnt/neo ext3 defaults 1 4
Verify by mounting on current Sessions also:
mount /dev/hda? /mnt/neo
Installation and Configuration Section, Introduction Lab Scenario:
There are two networks 172.24.0.0/16 and 172.25.0.0/16. As well as there are two domains example.com on 172.24.0.0/16 network and cracker.org on 172.25.0.0/16 network. Your system is based on example.com domain.
Installation and Configuration (51 QUESTIONs)

A. usermod -G sysusers jeff
usermod -G sysuser marion
Verify by reading /etc/group file Using usermod command we can make user belongs to different group. There are two types of group one primary and another is secondary. Primary group can be only one but user can belongs to more than one group as secondary. usermod -g groupname username To change the primary group of the user usermod -G groupname username To make user belongs to secondary group.

B. usermod -G sysusers jeff
usermod -G sysuser marion
Verify by reading /etc/group file Using usermod command we can make user belongs to different group. There are two types of group one primary and another is secondary.
usermod -g groupname username To change the primary group of the user usermod -G groupname username To make user belongs to secondary group.