TRNG CAO NG NGH HINH T K THUT

THIN TR--------oOo--------

BO CO N MN HCNgnh: Qun tr mng H: Chnh quy Nin kha: 2008 2011

Tn ti:

TM HIU V CI T H IU HNH CENTOS

Sinh vin thc hin: To vn tng

Nm 2011

Tm hiu v ci t h iu hnh centos

- Gii thiu v CentOS: -Centos(Community Enterprise Operating System) l 1 h iu hnh m ngun m da trn Red Hat Enterprise Linux nhng khc vi Red Hat n l hon ton free v c th tng thch hon ton vi cc phn mm chy trn trn Red Hat (k t phin bn centos 5.0 tr i). CentOS 4 da trn nn tng Red Hat Enterprise Linux 4, h tr dng x86 (i586 v i686), dng x86_64 (AMD64 v Intel EMT64), cc cu trc IA64, Alpha, S390 v S390x. Phin bn mi nht ca Centos l phin bn Centos 5.5 .Khc vi cc phin bn ch yu dnh cho desktop nh ubuntu hay fedora Centos ch yu xy dng pht trin cho dng my ch v vy nn vic phc v cc nhu cu v gii tr v multimedia c th s kh khn hn nhng cc nhu cu v hc tp v lm vic vi mng s mnh hn. Website:http://www.centos.org/ -Mt s ch v Centos nn s dng phin bn 5.0 tr ln v sch s d dng cu hnh cc chng trnh chy trn redhat ,v mt lnh th Fedora ,Centos v Redhat l ging nhau. -Nn bt u hc t giao din dng lnh ch lnh man dng trc 1 lnh chng ta cha r cc options ca n ,lnh ny cho ta xem ton b cc options m lnh c .Tuy nhin,thng th 1 lnh c rt nhiu cc options v vy ta nn dng lnh sau d xem h thng s hin th cc options theo trang man (lnh mun xem options) | less v d : man who | less -C 1 im khc nhau ni bt v vic lu tr Linux v Windows l Linux khng c khi nim cc logic nh C,D,E m bn c cm bao nhiu cng vo th linux coi n nh 1 th mc ,trong th mc ny lu tr nhiu cc th mc con khc.Nh vy vic t chc ti liu trn linux cng l da vo cc th mc khng h c h thng hn na trong Linux chng ta c th gii hn lu tr cho 1 th mc bt k v khng th lu tr qu s lng cp ny. khng b nhm ln hy t chc cc th mc tht r rng v d nh. - Phn Ci t: Qu trnh ci t Single Server CD kh d dng, nht l khi bn ci mt phn phi Linux khc. Bn cn download Single Server CD t mt bn my cc b, ghi n vo a v khi ng (boot) server t a . Cho d Single Server CD khng cha giao din GUI, qu trnh ci t vn s dng mt giao din ho, gip bn d dng thao tc vi tng phn. Lm theo cc hng dn trn mn hnh, cng vic tr nn n gin. Mo nh: Nu server ca bn khng cha bt k d liu no khc v khng gp phi vn g khi format li ton b a, nn s dng tu chn automatically partition (phn vng t ng) khi qu trnh ci t n bc Disk Partitioning Setup. N s gip bn tit kim c kh nhiu thi gian. Bn nn tm ngng s dng SELinux v tt chc nng tng la, nht l khi server c t an ton bn trong mng cc b. Bn c th thay i cc thit lp tng la sau nu 2 Bo co n mn hc

Tm hiu v ci t h iu hnh centos mun vi lnh system-config-securitylevel. Bn c th chn ci t mc nh cc gi phn mm mt cch an ton. Phng thc ci t ny s cung cp mt h thng CentOS c bn vi Web, mail v cc server FTP, DNS, chc nng chia s file qua Samba. Vi my c cu hnh hin i, qu trnh ci t ch mt di 20 pht. Khng phi tt c cc gi trn CD u c ci. Chng hn, nu mun dng PostgreSQL, bn s phi ci t n sau t a. Mun ci t PostgreSQL, a a vo c (mount/media/cdrom), dng lnh yum ci cc th vin client v server Kh nng mnh ca CentOS nm ch ng tin cy v n nh. N c xy dng da trn cc gi qua th nghim cho kt qu tt ch khng da trn phn mm bleedingedge. Tuy nhin cng c mt hn ch l mt s phn mm mi nht khng th ci t c trn phn phi ny. Thiu st quan trng nht, theo kin ca ti, l PHP 5 v MySQL 5. Nhng cc phn mm ny cng c tch hp vo trong CentOS Plus Repository Mc nh, CentOS 4.4 s dng PHP 4.3.9. Mun nng cp ln PHP 5, trc tin phi m bo my bn c kt ni vi Internet, sau chy lnh: M: yum --enablerepo=centosplus upgrade php* Tng t vi MySQL. Phin bn mc nh trong CentOS 4.4 l MySQL 4.1.20. Mun nng cp ln MySQL 5, dng cc lnh sau: M: yum --enablerepo=centosplus upgrade mysql* yum --enablerepo=centosplus install mysql-server-5* Mc nh c mt s dch v h thng khng c khi ng trong thi gian boot h thng nh Web server, MySQL server. Mun m bo cho cc dch v ny c chy ngay t khi khi ng my Nu cn dch v POP3 v IMAP, bn cn cu hnh dovecot daemon. Mc nh, dovecot daemon ch cung cp cc dch v IMAP. Mun c POP3, bn phi chnh sa /etc/dovecot.conf v t vo dng: M: protocols = imap imaps pop3 pop3s Dovecot cng khng c khi ng mc nh (nhng c ci t nh mt trong cc gi tiu chun). Mun dovecot c khi ng khi my khi ng, g lnh: M: chkconfig --levels 235 dovecot on Sau khi mi thnh phn c cu hnh chnh xc, bn nn khi ng li h thng. 3 Bo co n mn hc

Tm hiu v ci t h iu hnh centos Khng phi bi Linux cn khi ng li m n gin ch chc chn rng mi th c ci t ph hp v chy nh mong i.

- Hng dn ci t CentOS 5-Yu cu trc khi ci t: - a DVD hoc CDs CentOS 5. Download ti http://isoredirect.centos.org/centos/5/isos/i386/ -Trong hng dn ny ly hostname l server1.example.com, a ch IP 192.168.0.100 v gateway 192.168.0.1 -Ci t: - Boot CentOS bng CD 1 hoc DVD, n Enter

Chn Skip nu bn khng mun i lu:

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Khi mn hnh ci t CentOS hin ra, chn NEXT

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La chn ngn ng, English --> NEXT

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La chn ngn ng cho bn phm , English --> NEXT

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Tm hiu v ci t h iu hnh centos

Chn YES khi xut hin cu hi "Would you like to initialize this drive, erasing ALL DATA?"

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Tm hiu v ci t h iu hnh centos

mn hnh k tip, ta s la chn vic phn vng cng, nn la ch n " Remove linux partitions on selected drives and create default layout." H thng s t ng to phn vng /boot v /.

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Chn YES mn hnh k tip:

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Tm hiu v ci t h iu hnh centos

Ti phn la chn cu hnh network, chn EDIT

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Ci t IP theo nh hnh di, chn OK --> NEXT

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La chn Timezone Asia/Ho_Chi_Minh, NEXT

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Tm hiu v ci t h iu hnh centos t mt khu cho root, NEXT

By gi ta s la chn cc packages cn ci t. Uncheck Desktop-Gnome, (khng check phn server nh trong hnh), chn Customize Now --> NEXT

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Trong phn tip theo, tt c cc Menu bn tri, ta uncheck ton b cc packages, ring phn Base system ch la chn Base packages, NEXT

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H thng s t tm cc packages tin hnh ci t

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Ti y, ta chn NEXT

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Phn vng cng s c format ...

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Tm hiu v ci t h iu hnh centos

Tin trnh ci t s ch mt 5 - 10 pht...

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Tm hiu v ci t h iu hnh centos

Reboot sau khi tin trnh ci t hon tt.

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Tm hiu v ci t h iu hnh centos

Sau khi reboot, bn s nhn thy mn hnh hin thng tin nh hnh d i, ch n "Firewall configuration" --> "Run tool"

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Cu hnh nh hnh di:

Exit vo mn hnh Command line, SSH

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Tm hiu v ci t h iu hnh centos

Nh vy l hon thnh vic ci t CentOS 5.

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