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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。
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CentOS 系统精简优化
9 c- m" e. i- U3 t( n9 B4 W3 w' d6 F+ c删除不必要的自带软件包
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yum remove Deployment_Guide-en-US finger cups-libs cups ypbind& u6 T1 a% t3 y [: y! p/ I
yum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils. Z- m. {7 k) M$ H6 E
yum remove sendmail* samba* talk-server finger-server bind* xinetd
. ?7 m5 T& T- [0 ~ uyum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
F: L# j' u: t- wyum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools) n& B5 @5 N+ F, H8 B
yum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"% o0 `& _+ D8 R5 S9 f9 [, N
yum groupremove "Development Libraries" "Dialup Networking Support"/ z6 d% G/ Z8 A+ I' S: a* U
yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"# l9 @. _- _! E( t) M
yum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development"5 b0 a7 e/ q( ]' d7 d
升级 centos 系统
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yum update #更新系统
# N% `) ~, o+ e3 j1 Xyum clean all #清理全部缓存文件
6 G) _* W9 U! p R% O/ q' F禁用 seLinux5 `" c2 M7 R* V1 h6 i
! i3 f( v2 V% vsestatus #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
% O5 n8 v) R! a, n/ p6 V* Lvi /etc/selinux/config
* i5 h! K8 O9 i) j$ n( cSELINUX=disabled #禁用SeLinux& ]5 U4 i; ]3 F! R. }8 U" x
SELINUX=enforcing #使用SeLinux
6 v: m$ d$ t o$ |2 T2 t禁止 IPV6（执行后需要 reboot 重启）
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$ f: y ^' J- h Fvi /etc/modprobe.conf #打开文件，把下面两行加到最后( Y4 O0 _! k& @7 Q& {6 F
alias net-pf-10 off
0 D- Y# |/ l8 w9 ?' j6 kalias ipv6 off
' E9 e, M3 R( }# P% h' o初始化防火墙
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touch /etc/sysconfig/iptables
2 s9 N9 P ]; k# h: oiptables -F
; l' M# ]1 {' F+ s9 V4 jiptables -X
/ x- @* w" r6 U8 U5 Iiptables -Z. J% \7 I* Q. d# k9 } m
service iptables save
" r) n' I7 H' T5 ^- f: \2 v9 q3 pservice iptables restart1 U8 w7 i* L( C+ s
禁止无用服务
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#! /bin/bash) g0 U, b0 M$ }- M( ~- ^/ H
service acpid off2 o* q* W. y' s
service atd stop$ r6 }7 q7 F8 O, h2 M- y
service auditd stop
+ Z9 C2 f4 B- G0 }service avahi-daemon stop
+ g. P: ?" V2 ]# c0 q: l7 T, c* eservice avahi-dnsconfd stop/ D! o& v0 y' m3 e1 P
service bluetooth stop3 q g) ]' |) A* _
service conman stop
# c7 }$ \; `3 D3 y. ]9 F, M0 oservice cpuspeed stop
4 D- S% V" g& b2 c9 _service cups stop
# i8 p k' B" z2 \service dnsmasq stop0 n! e! m/ ]% A8 F( C4 V
service dund stop
8 X) h- J" v8 I; \8 c/ p; U5 b1 X! U2 oservice firstboot stop
% F' m$ Q2 R9 q# t, M6 \) G: g1 Bservice hidd stop' o$ F ~% a9 \3 R8 \3 T8 c
service httpd stop
5 B' _* c4 y3 G$ p. Eservice ibmasm stop u6 |! z4 C% X: E& o# i% u: z
service ip6tables stop/ }9 P6 e3 L, W" {& q6 u
service irda stop, V% r; ~* E" x. \( S
service kdump stop
3 o! F8 y& D( Y& t9 Oservice lm_sensors stop$ k8 I1 o2 o9 k$ }5 v/ ?( ]' g' F
service mcstrans stop
) t5 P- W7 ~9 S: v ^2 F) Z/ D; c: cservice messagebus stop8 m! S6 J; m! h, x* M \* W
service microcode_ctl stop4 U- D: }) `( z- O; x% i: V. c: q. x4 f
service netconsole stop1 \) c+ n4 i- J* N+ \6 z5 y
service netfs stop7 A W' h x7 O9 }/ X
service netplugd stop
A; b% H2 N* g" kservice nfs stop
& K* E8 q3 q9 f7 Z# xservice nfslock stop* K3 ]; m# G* t" `9 c5 d' y
service nscd stop6 s5 q2 O7 y' @$ x6 X2 _
service ntpd stop
& X6 W8 a3 p# m" Bservice oddjobd stop! `/ {$ }0 v# z( o- H
service pand stop$ z) E! x0 Z4 T( o4 f }' S
service pcscd stop
6 B Y/ g( d1 Vservice portmap stop e" T: ~( N0 @% m( k3 `* U7 M2 O
service psacct stop
" [8 R$ ^, s6 s! v4 ]% zservice rdisc stop
4 [, E o7 v$ T, `2 hservice restorecond stop
7 Q5 C8 n# q2 ^8 d7 N1 s& Qservice rpcgssd stop
4 `4 J* K. } f h! Jservice rpcidmapd stop' t/ f8 R- f4 h) |
service rpcsvcgssd stop
! g# o# i+ w: u `2 {service saslauthd stop
# G4 \1 n0 T7 B( eservice sendmail stop
+ i( v; m5 \$ q# d# _4 a! M) @service setroubleshoot stop, p& J$ E( c" x! ]
service smb stop; T! O, @" H) J# r3 X: P1 I
service vncserver stop
1 ]) [7 K* H& ~, sservice winbind stop& r6 L* ~8 z4 m M8 l& g& [, T
service wpa_supplicant stop- q" @$ }3 i" x3 b
service xfs stop
5 d0 }/ E& m$ Z( g' a/ zservice ypbind stop
8 |0 F! {, u5 z7 I3 e5 yservice yum-updatesd stop4 I$ Q4 m' ^' H# B! [5 v3 \
chkconfig acpid off4 X2 G$ X$ j( ^2 e* p1 R
chkconfig atd off
. h6 B2 R+ k1 Zchkconfig auditd off
) |2 `0 l& O# ?( C3 G7 hchkconfig avahi-daemon off+ R8 R% X& T/ Z6 @! x! [
chkconfig avahi-dnsconfd off& L4 w) q1 o' t# N
chkconfig bluetooth off7 c J! V' h, K5 g% i8 H! X0 q& G
chkconfig conman off
$ x2 m3 w0 p0 ?chkconfig cpuspeed off
2 f( V7 R: i& t6 c/ v* P9 Fchkconfig cups off i6 \4 ~1 i- \
chkconfig dnsmasq off
6 y7 S N/ t8 Bchkconfig dund off
1 A- e0 G# U; G6 Ychkconfig firstboot off: |4 ? k z9 O, J% y5 F( G: ^$ b# G
chkconfig hidd off# L9 d7 d/ C- N3 V- N. c4 I" o- ?
chkconfig httpd off
( ~0 H4 y9 F/ i' O' P. B6 |8 Uchkconfig ibmasm off& v: Q' s n M5 B0 o) V
chkconfig ip6tables off
+ B* p1 r# H) ~# X7 c4 kchkconfig irda off
; p0 x7 k4 C. _5 N% a" rchkconfig kdump off
2 `9 |' A" N- q; ?' w$ }" M; `2 pchkconfig lm_sensors off
8 [- ^ R$ U% M$ u6 p! } I# qchkconfig mcstrans off
# X' r0 B: \" Qchkconfig messagebus off- [/ \0 l. H8 g. x* O
chkconfig microcode_ctl off& {' g2 a: q/ ^: M7 h
chkconfig netconsole off
) p& g2 X; Y7 m x! I# a9 vchkconfig netfs off: k8 }, `$ [! E, T) Z, X. V( M$ O6 c
chkconfig netplugd off
. a% Y }% S) }4 p* P7 \, Lchkconfig nfs off
4 |1 v2 n' z" b9 Lchkconfig nfslock off
8 G$ M c$ ~4 p0 r0 E' y4 Kchkconfig nscd off
# \9 J, _% a1 ychkconfig ntpd off" X ~+ X) g$ `
chkconfig oddjobd off
8 T( V5 J# p9 [/ Bchkconfig pand off
, r/ L! ^6 V" K" E5 Bchkconfig pcscd off) U7 r2 Z8 o# I: m& ]1 I9 X
chkconfig portmap off
" W- |" }5 O3 V i/ e7 jchkconfig psacct off5 A+ u, I+ E6 }/ a
chkconfig rdisc off, k" P3 p. T+ P+ R' I
chkconfig restorecond off
, S5 W5 {0 d! i4 gchkconfig rpcgssd off
0 x1 ^7 `' r; _" Hchkconfig rpcidmapd off, s* x2 z5 Q& ]
chkconfig rpcsvcgssd off- T* I, a: U5 a' c9 a
chkconfig saslauthd off
6 B( ?6 F9 Y- Rchkconfig sendmail off7 S* M, e- r3 T' z
chkconfig setroubleshoot off9 w r) q8 a% t6 [9 R: x- O6 s
chkconfig smb off( f: q' k# r4 b9 R% \! k
chkconfig vncserver off
4 j7 x! O, Q4 q5 w. D8 g0 ychkconfig winbind off
6 {/ \' ?; q0 Zchkconfig wpa_supplicant off* n$ C9 y* h8 o1 M( ~- {+ y/ X! j' {
chkconfig xfs off0 M# @& J& L% X$ j! `
chkconfig ypbind off
" j6 k5 M e0 s+ Ochkconfig yum-updatesd off
# V6 b8 Q6 d' }这样通过上述 6 步骤，就可以完成对 centos 精简和优化。; @: b! X; |3 _% b/ ?2 w$ ?
3 j. [; i3 O& A& Z& d3 z来源：https://www.moewah.com/archives/2407.html |
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发表于 2023-8-8 10:29:46