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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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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。$ {" y! }% a' G3 O1 D/ j2 [& K
2 p; b0 S" S* ^6 R# KCentOS 系统精简优化
' A3 }) K! w, K V3 f( Z0 ?3 D: g删除不必要的自带软件包; z& @+ r. B k; Y
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yum remove Deployment_Guide-en-US finger cups-libs cups ypbind f" z* e I3 Q" ]( p$ {
yum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils' G; \8 E5 S: Z. [% V" A
yum remove sendmail* samba* talk-server finger-server bind* xinetd
5 K, L+ e- W. b4 Nyum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
" }* f, j7 N( |, k8 cyum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools2 p3 X/ @3 G7 |# }( s" e
yum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"7 i1 m* ]4 N% Z7 ^; L! ?+ l6 ?
yum groupremove "Development Libraries" "Dialup Networking Support"9 ?$ k) f0 R: y
yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"* \* B2 l K; F' A$ f
yum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development"
I% \; r! S. t升级 centos 系统
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yum update #更新系统
- S' m: d8 ~# z |8 W2 D ?yum clean all #清理全部缓存文件
2 J1 A7 V+ K8 W) E+ R禁用 seLinux% y3 ]+ o" Y5 e" d, W N$ f1 k
) [- \ B) N8 X2 l$ q, b0 [sestatus #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
: n* `1 h) d0 o# u1 j hvi /etc/selinux/config
6 w }8 S/ N4 FSELINUX=disabled #禁用SeLinux
* o2 {' Y/ d% U) rSELINUX=enforcing #使用SeLinux# e- a. K$ k& l! p8 A/ A6 H& J
禁止 IPV6（执行后需要 reboot 重启）" C: G; }8 u' [. x9 `
$ S5 w( |" v# w0 w, q1 r8 jvi /etc/modprobe.conf #打开文件，把下面两行加到最后3 }# E/ b' A! s' e' M7 K
alias net-pf-10 off* ]5 l# C3 l' R& E" C
alias ipv6 off
' p# x4 v' r9 h1 a/ j初始化防火墙
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6 e/ q3 r+ V- k9 l7 N" X$ v& H% X, F1 |touch /etc/sysconfig/iptables. A8 V' T) f8 B( R6 k7 S
iptables -F- b) C9 C; ?5 r; _/ L; @7 h
iptables -X
9 B6 l- e" n8 t# U; C# O3 A; Ciptables -Z
6 }1 o A f |. j4 x- ~service iptables save- x* g& j t. e7 D [
service iptables restart& m- C" x# w2 s! q9 d$ ^
禁止无用服务# u$ \- e4 {4 L+ v/ g" T' {7 h
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#! /bin/bash
6 ^, q( O8 ~( g; Y" h8 ?service acpid off2 i8 l* }1 m9 z9 i( [% V
service atd stop, p3 A# t( [3 l& _2 O
service auditd stop8 o4 X- t6 s" d2 U- _# L
service avahi-daemon stop* @1 @& X @& n: V8 o) W; |: }
service avahi-dnsconfd stop
- n* X+ D" p8 x4 j) n- pservice bluetooth stop
% r6 ~/ P, J! oservice conman stop
4 W/ t3 |0 o! g7 M1 Lservice cpuspeed stop' V2 J8 [, M- Q2 T) z
service cups stop
9 P' D5 N9 d: l" b$ g u! F4 `0 Tservice dnsmasq stop
, ?$ {6 q: \5 g. w" y0 j/ {service dund stop) X/ M7 \3 L+ b+ N! }% w9 L
service firstboot stop
4 T! a- Z7 h% R9 dservice hidd stop3 f. a. R5 w' R/ @1 D
service httpd stop
8 W% M! ?, p( H Cservice ibmasm stop
3 J# n3 U5 ^3 m/ {service ip6tables stop, P0 D! u# ? {
service irda stop& C4 E- f: f: P& t, X
service kdump stop
; X6 |8 k$ Y e+ j$ T% l# Yservice lm_sensors stop+ a& @2 t' P) }* {! Z
service mcstrans stop
: i- O; A$ T, u4 r8 vservice messagebus stop! ~: q, L) \- O* C
service microcode_ctl stop% _! |6 T, X, l+ J6 G
service netconsole stop
3 ]+ H! V H0 C# Qservice netfs stop
Q; V7 F# s0 ]' c$ a" uservice netplugd stop0 h5 ?0 g+ L, d
service nfs stop0 H) ^; b9 n a: \0 Z8 x
service nfslock stop0 M- s5 K: X6 G2 [! I9 Z
service nscd stop
/ }/ k o" Z9 p. e" r* Y% wservice ntpd stop' d- ~' @- F; D
service oddjobd stop) ~8 Z6 c. V1 T2 r( Y
service pand stop
- r. D2 W6 S3 I+ nservice pcscd stop
" _+ ?1 ~ [7 O7 x) j" m9 u' n; C7 Oservice portmap stop; G# Z& w, Q5 N8 k
service psacct stop* ~! N! U' s) ^5 J/ I( i
service rdisc stop
/ Q! D+ c6 d. i0 F7 q# F" pservice restorecond stop+ H- Z+ ~" O2 I% }! t c
service rpcgssd stop
$ _: [+ G3 C9 ~ E3 `; }' gservice rpcidmapd stop7 X2 K, R4 q5 v4 O$ ~5 r* v
service rpcsvcgssd stop% {/ g) f! G4 N: {
service saslauthd stop
$ \0 X! y, U' P& p$ J( Y/ Hservice sendmail stop- x1 z4 d9 A' b4 r2 v) J
service setroubleshoot stop
; ?& u, N' C8 m$ ^; L, s. r; nservice smb stop9 `7 `9 e7 r5 u! y s
service vncserver stop
9 T) N* C/ z- Bservice winbind stop
0 z) D+ K% Q3 `3 g6 X0 q) W" rservice wpa_supplicant stop
a0 I8 U4 p2 j* n! w+ M% wservice xfs stop
& i R# h/ d5 {1 w' iservice ypbind stop
) c& F6 c- z( nservice yum-updatesd stop
1 C8 N$ d; w: U# f |chkconfig acpid off
& u/ r9 I- A2 \' q Echkconfig atd off" k3 f: G) u5 i7 q: d; \% [+ i, E
chkconfig auditd off
; x7 I( h: \( m8 \) w0 E* Jchkconfig avahi-daemon off
4 t( d1 ]! E" s+ S: j& d& Ochkconfig avahi-dnsconfd off4 h! e' m8 E; Z- Q: B, @2 S. i9 O; Q
chkconfig bluetooth off/ N* ?) o! Y. @! R4 }# ~
chkconfig conman off2 o% U6 o1 o+ S$ y7 x
chkconfig cpuspeed off$ [+ a8 m. C1 F) C, |2 U
chkconfig cups off& k# e& r$ |) ^8 y% B- R6 F
chkconfig dnsmasq off
8 S, `: c( M( F: v& schkconfig dund off" r+ u. }/ f/ {8 H. O
chkconfig firstboot off: `& @7 I* H: ^9 V) w2 [& C. ]8 K% p
chkconfig hidd off
, D) o$ u* m9 e# j: [! xchkconfig httpd off2 u$ Z4 ^( _! a$ ?% ^' r, A
chkconfig ibmasm off3 b1 h& {/ f; \& s% E
chkconfig ip6tables off- E+ K3 q0 w R# h" e
chkconfig irda off+ @6 I7 v$ {- L; C, E. h
chkconfig kdump off1 L- Y: Z) y: s: _5 d3 A' u9 }* S
chkconfig lm_sensors off6 x; c4 ^% L# M. m Y" |
chkconfig mcstrans off
1 o" H1 W% ]. X$ Bchkconfig messagebus off- b7 v0 i" g7 o8 n
chkconfig microcode_ctl off- [! s% e$ [8 D
chkconfig netconsole off
9 f9 `+ p; k' ` ^1 |& hchkconfig netfs off
1 V. Z" z$ _ _* V- r$ pchkconfig netplugd off0 k; W+ T' t: k; G
chkconfig nfs off
2 {) V# w4 a& o$ U+ tchkconfig nfslock off
6 l' i* w: S* E8 ^chkconfig nscd off
1 X7 \% K8 n- p+ V9 ~7 pchkconfig ntpd off7 t& b" J' q6 O% t
chkconfig oddjobd off
0 ~+ t, u3 q0 s3 V. m# fchkconfig pand off
& I, e( Y" A% D Z' }+ I- wchkconfig pcscd off, g9 R; v7 a/ B) }% F
chkconfig portmap off, l7 n% |( F' b2 f6 }! A
chkconfig psacct off
! p2 e) h4 Y' X/ R. v5 I, t" Bchkconfig rdisc off
9 e3 n% O# D0 I. k7 O }chkconfig restorecond off+ r; j3 g) [% K3 \
chkconfig rpcgssd off0 V2 _8 ^* O0 g
chkconfig rpcidmapd off! @+ |9 l% {8 }& e
chkconfig rpcsvcgssd off/ T! C- k8 r2 b; f, F( A3 U. r
chkconfig saslauthd off7 U* s2 S. U( I) W+ x7 Z
chkconfig sendmail off! O: j; C0 u5 ]+ b$ y( V: }; ~
chkconfig setroubleshoot off
2 A+ w5 L0 R! {0 u U% K) Z) schkconfig smb off
2 r5 [2 a5 \$ j& g. m5 R# E8 jchkconfig vncserver off
7 J: N+ U) ]/ rchkconfig winbind off
1 f6 |. B' J% ~9 s5 O4 w, v" Z) d9 _chkconfig wpa_supplicant off( [0 P2 g* }, i" c2 x5 `
chkconfig xfs off
3 \% v- j6 Z ^# b7 R+ `chkconfig ypbind off* X- f$ c* A& f8 p) Z9 o+ e
chkconfig yum-updatesd off
0 Y9 A) v6 a, t8 f这样通过上述 6 步骤，就可以完成对 centos 精简和优化。* C( F- \0 T! V! H
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发表于 2023-8-8 10:29:46