RHCE試験無料問題集「RedHat Red Hat Certified Engineer - RHCE 認定」
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Configure a cron Task.
User natasha must configure a cron job, local time 14:23 runs and executes: */bin/echo hiya every day.
Configure a cron Task.
User natasha must configure a cron job, local time 14:23 runs and executes: */bin/echo hiya every day.
正解：
crontab-e-unatasha2314/bin/echohiyacrontab-l-unatasha//viewsystemctlenablecrondsystemcdlrestartcrond
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Your System is configured in 192.168.0.0/24 Network and your nameserver is 192.168.0.254. Make successfully resolve to server1.example.com.
Your System is configured in 192.168.0.0/24 Network and your nameserver is 192.168.0.254. Make successfully resolve to server1.example.com.
正解：
nameserverisspecifiedinquestion1.Vi/etc/resolv.confnameserver192.168.0.2542.hostserver1.example.com
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Create a Shared Directory.
Create a shared directory /home/admins, make it has the following characteristics:
/home/admins belongs to group adminuser
This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser.
Create a Shared Directory.
Create a shared directory /home/admins, make it has the following characteristics:
/home/admins belongs to group adminuser
This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser.
正解：
mkdir/home/adminschgrp-Radminuser/home/adminschmodg+w/home/adminschmodg+s/home/admins
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There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make successfully ping to 172.25.254.254 by Assigning following IP: 172.24.0.x where x is your station number.
There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make successfully ping to 172.25.254.254 by Assigning following IP: 172.24.0.x where x is your station number.
正解：
Usenetconfigcommand
EntertheIPAddressasgivenstationnumberbyyourexaminer:example:172.24.0.1
EnterSubnetMask
EnterDefaultGatewayandprimarynameserver
pressonok
ifdowneth0
ifupeth0
verifyusingifconfigInthelabserverisplayingtheroleofrouterIPforwardingisenabled.JustsettheCorrectIPandgatewayyoucanpingto172.25.254.254.
EntertheIPAddressasgivenstationnumberbyyourexaminer:example:172.24.0.1
EnterSubnetMask
EnterDefaultGatewayandprimarynameserver
pressonok
ifdowneth0
ifupeth0
verifyusingifconfigInthelabserverisplayingtheroleofrouterIPforwardingisenabled.JustsettheCorrectIPandgatewayyoucanpingto172.25.254.254.
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Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
正解：
UsingthebrowseropentheURLinthequestiondownloadkernelfiletorootorhomedirectory.uname-r//checkthecurrentkernelversionrpm-ivhkernel-*.rpmvi/boot/grub.conf//checkSomequestionsare:Installandupgradethekernelasrequired.Toensurethatgrub2isthedefaultitemforstartup.Yumrepo:http://content.example.com/rhel7.0/x86-64/errataORuname-r//checkkernelYum-config-manager--add-repo="http://content.example.com/rhel7.0/x86-64/errata"YumcleanallYumlistkernel//installdirectlyYum-yinstallkernel//stuckwithitdonotpipe!Pleasedonotpipe!Defaultenablenewkernelgrub2-editenvlist//checkModifygrub2-set-default"kernelfullname"Grub2-mkconfig-o/boot/grub2/grub.cfg//Refresh
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Notes:
NFS : NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM : http://instructor.example.com/pub/rhel6/dvd
ldap : http : //instructor.example.com/pub/EXAMPLE-CA-CERT
Install dialog package.
Notes:
NFS : NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM : http://instructor.example.com/pub/rhel6/dvd
ldap : http : //instructor.example.com/pub/EXAMPLE-CA-CERT
Install dialog package.
正解：
yum install dialog
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Make on /archive directory that only the user owner and group owner member can fully access.
Make on /archive directory that only the user owner and group owner member can fully access.
正解：
chmod770/archive
Verifyusing:ls-ld/archivePreviewshouldbelike:drwxrwx---2rootsysuser4096Mar1618:08/archiveTochangethepermissionondirectoryweusethechmodcommand.Accordingtothequestionthatonlytheowneruser(root)andgroupmember(sysuser)canfullyaccessthedirectoryso:chmod770/archive
Verifyusing:ls-ld/archivePreviewshouldbelike:drwxrwx---2rootsysuser4096Mar1618:08/archiveTochangethepermissionondirectoryweusethechmodcommand.Accordingtothequestionthatonlytheowneruser(root)andgroupmember(sysuser)canfullyaccessthedirectoryso:chmod770/archive
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In the system, mounted the iso image /root/examine.iso to/mnt/iso directory. And enable automatically mount (permanent mount) after restart system.
In the system, mounted the iso image /root/examine.iso to/mnt/iso directory. And enable automatically mount (permanent mount) after restart system.
正解：
mkdir-p/mnt/iso/etc/fstab:/root/examine.iso/mnt/isoiso9660loop00mount-amount|grepexamine
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Make a swap partition having 100MB. Make Automatically Usable at System Boot Time.
Make a swap partition having 100MB. Make Automatically Usable at System Boot Time.
正解：
Usefdisk/dev/hda->Tocreatenewpartition.
Typen->ForNewpartition
ItwillaskforLogicalorPrimaryPartitions.Presslforlogical.
ItwillaskfortheStartingCylinder:UsetheDefaultbypressingEnterKey.
TypetheSize:+100M->YoucanSpecifyeitherLastcylinderofSizehere.
PressPtoverifythepartitionslistsandrememberthepartitionsname.DefaultSystemIDis83thatmeansLinuxNative.
TypettochangetheSystemIDofpartition.
TypePartitionNumber
Type82thatmeansLinuxSwap.
Presswtowriteonpartitionstable.
EitherRebootorusepartprobecommand.
mkswap/dev/hda?->TocreateSwapFilesystemonpartition.
swapon/dev/hda?->ToenabletheSwapspacefrompartition.
free-m->VerifyEitherSwapisenabledornot.
vi/etc/fstab/dev/hda?swapswapdefaults00
ReboottheSystemandverifythatswapisautomaticallyenabledornot.
Typen->ForNewpartition
ItwillaskforLogicalorPrimaryPartitions.Presslforlogical.
ItwillaskfortheStartingCylinder:UsetheDefaultbypressingEnterKey.
TypetheSize:+100M->YoucanSpecifyeitherLastcylinderofSizehere.
PressPtoverifythepartitionslistsandrememberthepartitionsname.DefaultSystemIDis83thatmeansLinuxNative.
TypettochangetheSystemIDofpartition.
TypePartitionNumber
Type82thatmeansLinuxSwap.
Presswtowriteonpartitionstable.
EitherRebootorusepartprobecommand.
mkswap/dev/hda?->TocreateSwapFilesystemonpartition.
swapon/dev/hda?->ToenabletheSwapspacefrompartition.
free-m->VerifyEitherSwapisenabledornot.
vi/etc/fstab/dev/hda?swapswapdefaults00
ReboottheSystemandverifythatswapisautomaticallyenabledornot.
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Create User Account.
Create the following user, group and group membership:
Adminuser group
User natasha, using adminuser as a sub group
User Harry, also using adminuser as a sub group
User sarah, can not access the SHELL which is interactive in the system, and is not a member of adminuser, natasha , harry , sarah password is redhat.
Create User Account.
Create the following user, group and group membership:
Adminuser group
User natasha, using adminuser as a sub group
User Harry, also using adminuser as a sub group
User sarah, can not access the SHELL which is interactive in the system, and is not a member of adminuser, natasha , harry , sarah password is redhat.
正解：
groupaddadminuseruseraddnatasha-Gadminuseruseraddharyy-Gadminuseruseraddsarah-s/sbin/nologinPasswdusername//tomodifypasswordorechoredhat|passwd--stdinusernameidnatasha//toviewusergroup.