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请注意，本文编写于 1481 天前，最后修改于 742 天前，其中某些信息可能已经过时。
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B/ h D( M( X, C8 A/ m+ R说明：在安装 Linux 系统前我们需要顾虑到电脑硬件性能，选择最小化安装非常有必要，毕竟服务器资源一定的情况下，系统只会日益臃肿慢慢开始拖慢所有服务，这些因素在我们安装系统前就应该考虑的，分析哪些是服务器必需和非必需从而尽可能的精简系统。5 n, t7 n0 f3 e
* t9 ^5 o5 Q% @: g/ c/ H* @CentOS 系统精简优化$ }% H3 V3 s5 O5 S, n: ?
删除不必要的自带软件包0 R, p: I5 p) ~" p5 J
Q) v7 y. v9 y/ Y+ ]. ]yum remove Deployment_Guide-en-US finger cups-libs cups ypbind0 z& {* g% o, Z h
yum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils
$ M" S. o! h/ q- h, B* J( w) Cyum remove sendmail* samba* talk-server finger-server bind* xinetd
% _ W2 S9 \! o4 y6 a' r% _yum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
$ Q% F" W1 G4 E- U' H) P3 yyum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools
$ H% t! T% C0 b6 y0 e8 nyum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"' G0 ~% g9 ?. y) ]* d1 \
yum groupremove "Development Libraries" "Dialup Networking Support". A6 o* b- V* |0 @# E. t/ q! k" Z
yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"
6 g* T2 {7 @6 T8 P+ W7 Yyum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development"5 w( K V% \1 I. F! y
升级 centos 系统# u/ R" @. ~) b8 a8 w, U
: Z1 w6 G t/ {! B' z7 Z, E9 Kyum update #更新系统3 Z, W9 _; E: P+ `! D0 |. {, y
yum clean all #清理全部缓存文件
9 A$ d) a! r2 q6 q3 f禁用 seLinux
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: |4 i! W) l$ Fsestatus #先执行看seLinux状态，如果不是disabled，就需要执行下面步骤，否则不要执行! L- N2 U/ C) Q4 f% I0 Q5 r* R: d
vi /etc/selinux/config( p' K1 m1 g! O' D6 G& T9 m
SELINUX=disabled #禁用SeLinux$ `+ U7 b! a& w! S& I3 |& Q/ R& i: L
SELINUX=enforcing #使用SeLinux) Q7 z" u0 ^' S1 f
禁止 IPV6（执行后需要 reboot 重启）$ c5 A8 v U5 J( o/ f3 {
; x1 @- j: `" `- W! a* Tvi /etc/modprobe.conf #打开文件，把下面两行加到最后3 G7 y$ Z7 [, X
alias net-pf-10 off
' T! E) `- Y9 T# z0 P U2 s9 Talias ipv6 off( D: N \) E* I2 j
初始化防火墙2 G1 c' \0 _: p, Z B
+ r5 l) ^2 z/ {" e# W. Ttouch /etc/sysconfig/iptables( z, G/ ] m1 z' f0 o) m3 V6 a
iptables -F
4 Q. @2 b& v7 n: d+ m' qiptables -X) F: u) D( ?& C( o5 E
iptables -Z
- J/ {8 }7 G( t; ?! Eservice iptables save
- k, @% A7 A/ Y2 p; b& ~- a( @service iptables restart
7 u) f( }! j+ W3 H* i; |禁止无用服务
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#! /bin/bash. ~. l6 O) J' l$ P5 H
service acpid off) G) }3 X! P3 q1 J; z: e
service atd stop4 d3 g6 ^0 Q1 [) J- P+ e% M, F
service auditd stop! f7 R; i% c& k; l5 ~0 k) E
service avahi-daemon stop& M% z% I/ L1 s9 Q
service avahi-dnsconfd stop
) d4 W( |# T2 ~service bluetooth stop8 m4 b4 r/ @: Z# ]
service conman stop
$ f* t0 \0 B, R9 R/ t/ zservice cpuspeed stop; s: h& k$ m% _0 @# n
service cups stop
9 ?- y! X2 P- C; U8 R/ a* Sservice dnsmasq stop+ {' W; N8 U$ O% l- Q
service dund stop
& ?3 k: J" |1 B& T* Zservice firstboot stop0 h5 W% f' ?) c- x) x& T. C7 H
service hidd stop6 o7 v! y4 r8 Y' Q: E
service httpd stop
4 x) d9 \* r A: \/ aservice ibmasm stop
; c4 r7 Z% ?8 k, ?8 p+ ?service ip6tables stop
7 [( M& o: o6 S& t9 R9 C8 pservice irda stop
( u7 T& u: h0 ^$ A* lservice kdump stop$ [9 V# E3 c3 v, m( V
service lm_sensors stop
1 R: M8 n) u' h: m1 V" c$ [service mcstrans stop
& ]& }1 ]' Y5 h) k) e! h& y2 W! _8 zservice messagebus stop
% R- F0 `8 z1 A Z+ M$ Gservice microcode_ctl stop, V( A6 O! p2 x7 y& Z- ?; L
service netconsole stop
2 F* f j. s9 x3 l( x0 y/ F, Rservice netfs stop7 x& H* d& A6 M+ X
service netplugd stop
8 O" U/ E( F4 V+ v. s4 K; T. x' P# vservice nfs stop* H* V7 c& ?! z
service nfslock stop
' u+ q5 [) ~8 K i" qservice nscd stop
5 ^ k" Y/ ?$ ], B( F* Tservice ntpd stop3 F4 S+ u; G# c6 Y' l9 z2 u
service oddjobd stop
* L5 x! G2 I; T! ?1 o- ~$ c5 Kservice pand stop
6 `, O I: v; h" B% x+ G- Eservice pcscd stop1 L& _( P5 f/ \2 q. d0 J, m
service portmap stop; h% V5 x. z& v/ W' t. S5 b( \) T
service psacct stop
# x7 B8 j+ u: Q1 Tservice rdisc stop
1 e8 ?& n/ Y* I5 s8 L2 ]: g6 sservice restorecond stop
$ E! a, q9 g2 c/ I9 r# Nservice rpcgssd stop& U; ?, ^' v6 C% q
service rpcidmapd stop
9 y% e$ R5 e$ b9 S* w; Lservice rpcsvcgssd stop5 n6 B; r# M7 P* W9 K
service saslauthd stop' C- {& F( x4 m) r+ n+ ?
service sendmail stop! ?% \9 M: _" K7 g$ h% |) L
service setroubleshoot stop
7 n, W; q, W5 ?service smb stop
$ @0 n3 e( x8 Y5 [. f E3 c) |service vncserver stop
& {. _9 g5 O7 Y' a2 B4 lservice winbind stop0 P4 |: E5 \" Q* S
service wpa_supplicant stop
& G5 ?; f% Z3 R* Wservice xfs stop
1 c/ X) c1 U; \/ ^service ypbind stop
) a( x# O, U3 m, nservice yum-updatesd stop0 F8 ?1 t/ K) s4 L
chkconfig acpid off* s$ D+ C' |0 Z# ?* v2 w: W
chkconfig atd off- o. s( S9 x+ t* k
chkconfig auditd off) s( b' D3 J" J6 @+ b! R; Z
chkconfig avahi-daemon off
( `: Q/ N) \ r |8 Lchkconfig avahi-dnsconfd off
; z6 C# F0 t) t" dchkconfig bluetooth off; G( x9 p5 s) h4 X8 q( V( p
chkconfig conman off" G# g& j3 a/ E) m3 n5 A# _
chkconfig cpuspeed off
' o* s! ~% X3 w* E7 y: ]( a3 Echkconfig cups off# g5 B: f1 N* L8 ]2 b5 T' n) m. z
chkconfig dnsmasq off. e) G; |- P. g9 u
chkconfig dund off
: ~/ O1 y: [2 y2 L+ `chkconfig firstboot off! {. v- Y% x# X: J
chkconfig hidd off9 ?& ]4 }% w* Y D. o7 Q6 v
chkconfig httpd off
( ^. b j4 d3 ]# h% k# Gchkconfig ibmasm off
+ F, V% X* S, a0 g9 Wchkconfig ip6tables off) N. H& A6 Q* y
chkconfig irda off' l" V6 D" K! A
chkconfig kdump off
6 i& n1 @, L& k: J6 E6 l5 Vchkconfig lm_sensors off
8 l) K% L) u; uchkconfig mcstrans off
1 t5 W. ]% `8 s" }7 g" {3 }chkconfig messagebus off# u" x/ g7 P' m0 J. g4 N2 Z
chkconfig microcode_ctl off: `8 Q! B0 b: j7 [3 C. M$ A" x7 o
chkconfig netconsole off" H9 J+ v1 F% u/ N! A$ C. _, T
chkconfig netfs off! F m( s3 C# L3 e0 j
chkconfig netplugd off
( |( h! Q! g) x! w mchkconfig nfs off( \7 {. t3 y l) S5 x
chkconfig nfslock off
; ]- w! t0 O( q3 fchkconfig nscd off
0 ^1 W; l" N, C- E6 Ichkconfig ntpd off
9 r+ b% x; J% C- K2 E2 Lchkconfig oddjobd off+ R0 @, r* h* c
chkconfig pand off
/ l) i. l9 D2 W" g0 Ichkconfig pcscd off4 \& n5 w% {$ Q& ?' j. |6 ~3 n# K
chkconfig portmap off5 j% E$ z2 @& f
chkconfig psacct off
/ `8 c; y9 V/ @8 y* Achkconfig rdisc off6 T. C7 ~, C9 M+ n) H& E' p" m
chkconfig restorecond off
$ e; E3 d8 w( t# F/ l6 d! P. p7 y& gchkconfig rpcgssd off' E/ P$ H& |" \" z; E
chkconfig rpcidmapd off% Y( f8 o4 f8 k# {" v/ R
chkconfig rpcsvcgssd off+ H0 X! s1 b6 P% ]. a0 a
chkconfig saslauthd off, p; Q7 o/ {3 T, V" A) |) R5 q
chkconfig sendmail off
' _$ U- Q( i- Z+ W- _" b. T5 Echkconfig setroubleshoot off
! e' V) m0 T$ i$ Y6 e5 I |chkconfig smb off$ b3 Q' M/ z6 p C2 U* r# j/ g
chkconfig vncserver off. n# O7 x ^9 e
chkconfig winbind off, |8 b3 [0 x' ]$ e# B
chkconfig wpa_supplicant off
! B# |3 C0 L: j7 {chkconfig xfs off' s1 V. k* U& E5 u& m4 s
chkconfig ypbind off3 n- ]9 H2 W9 ?8 I3 a# H- Q) I4 w
chkconfig yum-updatesd off P3 T* K( C* g3 r
这样通过上述 6 步骤，就可以完成对 centos 精简和优化。* O9 D& P/ C" P _1 p; _
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发表于 2023-8-8 10:29:46