RHCE試験無料問題集「RedHat Red Hat Certified Engineer - RHCE 認定」
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Configure your web services, download from http://instructor.example.com/pub/serverX.html And the services must be still running after system rebooting.
Configure your web services, download from http://instructor.example.com/pub/serverX.html And the services must be still running after system rebooting.
正解：
cd/var/www/htmlwgethttp://instructor.example.com/pub/serverX.htmlmvserverX.htmlindex.html/etc/init.d/httpdrestartchkconfighttpdon
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Open kmcrl value of 5 , and can verify in /proc/ cmdline
Open kmcrl value of 5 , and can verify in /proc/ cmdline
正解：
#vim/boot/grub/grub.confkernel/vmlinuz-2.6.32-71.el6.x86_64roroot=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSrootrd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DMLANG=en_US.UTF-8SYSFONT=latarcyrheb-sun16KEYBOARDTYPE=pcKEYTABLE=uscrashkernel=autorhgbquietkmcrl=5Restarttotakeeffectandverification:
#cat/proc/cmdlineroroot=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSrootrd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DMLANG=en_US.UTF-8SYSFONT=latarcyrheb-sun16KEYBOARDTYPE=pcKEYTABLE=usrhgbquietkmcrl=5
#cat/proc/cmdlineroroot=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSrootrd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DMLANG=en_US.UTF-8SYSFONT=latarcyrheb-sun16KEYBOARDTYPE=pcKEYTABLE=usrhgbquietkmcrl=5
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Find the files owned by harry, and copy it to catalog: /opt/dir
Find the files owned by harry, and copy it to catalog: /opt/dir
正解：
#cd/opt/
#mkdirdir
#find/-userharry-execcp-rfp{}/opt/dir/\;
#mkdirdir
#find/-userharry-execcp-rfp{}/opt/dir/\;
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Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
正解：
#fdisk/dev/sdap(checkPartitiontable)n(createnewpartition:pressetocreateextendedpartitionpressptocreatethemainpartitionandtheextendedpartitionisfurtherdividedintologicalpartitions)Enter+2Gt8I82Wpartx-a/dev/sdapartprobemkswap/dev/sda8CopyUUIDswapon-avim/etc/fstabUUID=XXXXXswapswapdefaults00(swapon-s)
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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 going to use as a Router for two networks. One Network is 192.168.0.0/24 and Another Network is 192.168.1.0/24. Both network's IP address has assigned.
How will you forward the packets from one network to another network?
Your System is going to use as a Router for two networks. One Network is 192.168.0.0/24 and Another Network is 192.168.1.0/24. Both network's IP address has assigned.
How will you forward the packets from one network to another network?
正解：
echo"1">/proc/sys/net/ipv4/ip_forward
vi/etc/sysctl.confnet.ipv4.ip_forward=1IfyouwanttousetheLinuxSystemasaRoutertomakecommunicationbetweendifferentnetworksyouneedenabletheIPforwarding.Toenableonrunningsessionjustsetvalue1to/proc/sys/net/ipv4/ip_forward.AswellasautomaticallyturnontheIPforwardingfeaturesonnextbootseton/etc/sysctl.conffile.
vi/etc/sysctl.confnet.ipv4.ip_forward=1IfyouwanttousetheLinuxSystemasaRoutertomakecommunicationbetweendifferentnetworksyouneedenabletheIPforwarding.Toenableonrunningsessionjustsetvalue1to/proc/sys/net/ipv4/ip_forward.AswellasautomaticallyturnontheIPforwardingfeaturesonnextbootseton/etc/sysctl.conffile.
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Add a new logical partition having size 100MB and create the data which will be the mount point for the new partition.
Add a new logical partition having size 100MB and create the data which will be the mount point for the new partition.
正解：
1.Usefdisk/dev/hda->Tocreatenewpartition.2.Typen->ForNewpartitions3.ItwillaskforLogicalorPrimaryPartitions.Presslforlogical.4.ItwillaskfortheStartingCylinder:UsetheDefaultbypressingEnterKeys5.Typethesize:+100MyoucanspecifyeitherLastcylinderofsizehere.6.PressPtoverifythepartitionslistsandrememberthepartitionsname.7.Presswtowriteonpartitionstable.8.EitherRebootorusepartprobecommand.9.Usemkfs-text3/dev/hda?OR1.mke2fs-j/dev/hda?->Tocreateext3filesystem.2.vi/etc/fstab3.Write:/dev/hda?/dataext3defaults004.Verifybymountingoncurrentsessionsalso:mount/dev/hda?/data
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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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Configure autofs to make sure after login successfully, it has the home directory autofs, which is shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, other ldap users can use the home directory normally.
Configure autofs to make sure after login successfully, it has the home directory autofs, which is shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, other ldap users can use the home directory normally.
正解：
#chkconfigautofson
#cd/etc/
#vim/etc/auto.master/rhome/etc/auto.ldap
#cpauto.miscauto.ldap
#vimauto.ladpldapuser40-rwsoftintr172.24.40.10:/rhome/ldapuser40*-rwsoftintr172.16.40.10:/rhome/&
#serviceautofsstop
#serverautofsstart
#showmount-e172.24.40.10
#su-ladpuser40
#cd/etc/
#vim/etc/auto.master/rhome/etc/auto.ldap
#cpauto.miscauto.ldap
#vimauto.ladpldapuser40-rwsoftintr172.24.40.10:/rhome/ldapuser40*-rwsoftintr172.16.40.10:/rhome/&
#serviceautofsstop
#serverautofsstart
#showmount-e172.24.40.10
#su-ladpuser40
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Configure autofs.
Configure the autofs automatically mount to the home directory of LDAP, as required:
server.domain11.example.com use NFS to share the home to your system. This file system contains a pre
configured home directory of user ldapuserX.
Home directory of ldapuserX is:
server.domain11.example.com /home/guests/ldapuser
Home directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password
Configure autofs.
Configure the autofs automatically mount to the home directory of LDAP, as required:
server.domain11.example.com use NFS to share the home to your system. This file system contains a pre
configured home directory of user ldapuserX.
Home directory of ldapuserX is:
server.domain11.example.com /home/guests/ldapuser
Home directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password
正解：
yuminstall-yautofsmkdir/home/rehome
/etc/auto.master/home/rehome/etc/auto.ldapKeepthenexitcp/etc/auto.misc/etc/auto.ldap
/etc/auto.ldapldapuserX-fstype=nfsrwserver.domain11.example.com:/home/guests/Keepthenexitsystemctlstartautofssystemctlenableautofssu-ldapuserX//testIftheabovesolutionscannotcreatefilesorthecommandpromptis-bash-4.2$itmaybeexistmulti-leveldirectorythisneedstochangetheserver.domain11.example.com:/home/guests/toserver.domain11.example.com:/home/guests/ldapuserX.Whatismulti-leveldirectory?ItmeansthereisadirectoryofldapuserXunderthe/home/guests/ldapuserXinthequestions.Thisdirectoryistherealdirectory.
/etc/auto.master/home/rehome/etc/auto.ldapKeepthenexitcp/etc/auto.misc/etc/auto.ldap
/etc/auto.ldapldapuserX-fstype=nfsrwserver.domain11.example.com:/home/guests/Keepthenexitsystemctlstartautofssystemctlenableautofssu-ldapuserX//testIftheabovesolutionscannotcreatefilesorthecommandpromptis-bash-4.2$itmaybeexistmulti-leveldirectorythisneedstochangetheserver.domain11.example.com:/home/guests/toserver.domain11.example.com:/home/guests/ldapuserX.Whatismulti-leveldirectory?ItmeansthereisadirectoryofldapuserXunderthe/home/guests/ldapuserXinthequestions.Thisdirectoryistherealdirectory.