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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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! t+ Z! d0 Q: i% A4 Q* s6 J+ k' z3 ^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。8 b3 Q N) b. W- i
/ Y: N$ o9 r# F5 DCentOS 系统精简优化- ~9 X) ^) H- J3 H y1 U
删除不必要的自带软件包
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! _8 [0 W5 O7 O( _( e4 @. ?! ?8 Tyum remove Deployment_Guide-en-US finger cups-libs cups ypbind
+ L) z+ }9 j4 t* v1 ~ _4 Dyum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils
' w# m( D# q; d, d' m3 I( U) Tyum remove sendmail* samba* talk-server finger-server bind* xinetd" {% m4 m' _0 X* O4 P. Z: _
yum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
* I; _. }2 L! d' y" j0 w O% O" Pyum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools" \/ `, N+ \6 Z. v4 |1 W* @
yum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"
5 R2 u( X' R* L+ }7 x, jyum groupremove "Development Libraries" "Dialup Networking Support"; u# Y+ G9 l7 s7 @$ C6 y( Z/ g1 n
yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"* M0 B8 z7 ~$ m3 d$ d3 V
yum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development"% P3 G5 V I9 p. ~' E8 L
升级 centos 系统
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yum update #更新系统$ s" y" E$ j7 ~6 _
yum clean all #清理全部缓存文件4 y% {$ j9 q/ U/ b& I7 w' @
禁用 seLinux& r9 `) p- q+ U$ U# ~) q
6 V" p5 k2 P. H$ a2 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+ v% j& w: f1 D+ y3 j% c+ {
vi /etc/selinux/config5 {' P; P# w0 W5 x8 f, j2 F2 h; @
SELINUX=disabled #禁用SeLinux
) u5 E3 H8 x5 L/ CSELINUX=enforcing #使用SeLinux4 C0 f0 V1 i: }& C2 j
禁止 IPV6（执行后需要 reboot 重启）
2 H( P- c6 H% h2 y4 b2 A$ g$ W3 |2 l0 g5 w9 j
vi /etc/modprobe.conf #打开文件，把下面两行加到最后
& ~2 q* p- a9 nalias net-pf-10 off) p9 P- s: `% J6 d
alias ipv6 off, w0 l1 j/ H6 \7 q4 X5 n
初始化防火墙; I0 C# m Y# A0 W) K
* v* h6 P% f1 Y. o$ b9 xtouch /etc/sysconfig/iptables9 o3 @9 ~* @# N
iptables -F
5 z: |! [9 r' {& |( Miptables -X
2 q' ]6 _$ W2 R4 s" a, ~iptables -Z1 i" c2 _) z& S& R
service iptables save# d/ d. J- f6 |3 L% Q
service iptables restart
4 I% ~* w0 l$ y, `8 Z/ I+ W禁止无用服务
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#! /bin/bash
# ?' v5 ?! P2 V& l6 Q& g+ kservice acpid off# A l1 d9 z8 i/ f0 ]. ]" | d4 \$ f
service atd stop$ H- Y% A0 g# i: B0 Z
service auditd stop
, F$ b! \* n7 ~& v' Uservice avahi-daemon stop
5 T- J& K/ G) b5 K+ Mservice avahi-dnsconfd stop
. y2 Q* x5 J9 z! a3 z) \ [service bluetooth stop
/ `* d. f. \, ]) w' \8 ~# E% Aservice conman stop2 W l; e/ U0 c* i$ \8 |( K" `
service cpuspeed stop; O2 S3 ]+ \% y- v
service cups stop
/ j1 Z. |. D: P; |* wservice dnsmasq stop0 \9 \; i& h1 w9 e
service dund stop) L7 I- b/ @# K
service firstboot stop
8 m4 {, J: V7 {4 lservice hidd stop
4 m+ F2 J6 ~, Q7 Sservice httpd stop8 K5 L" }, w. e1 E1 Y/ m0 Q
service ibmasm stop- x! ^2 }2 Y. X ^ `
service ip6tables stop
) b, R% Q2 Q3 @service irda stop
# D( _9 _* R" c" Oservice kdump stop [0 s# Z$ I& p* L' V* r# Z
service lm_sensors stop, C6 R* a E' Y) X! u' a* W
service mcstrans stop
^/ A) a" G" n" A4 g: Oservice messagebus stop6 ^: r! w- p- Y7 w
service microcode_ctl stop
! R, w2 _4 Q/ {& L1 w; n% h6 {& T! w/ xservice netconsole stop! f1 [& ~# o3 l. @! b9 ]3 i
service netfs stop
0 V: O7 I1 G5 J9 J* Dservice netplugd stop6 ?" M0 C. ]: h7 y" O5 M
service nfs stop" g! x; O4 a" ~# l" j" s% Q
service nfslock stop+ m1 i0 O' M% D# P6 U9 r2 \
service nscd stop# a. v. }9 \+ W& |$ G
service ntpd stop, _) |6 I) s: R* o
service oddjobd stop
0 d p" ]$ C3 Cservice pand stop6 n, t2 L T6 d
service pcscd stop
9 L5 U. U4 M# d7 K+ c5 Uservice portmap stop
% m1 s- o4 |2 P# Tservice psacct stop
5 n) y2 V- m4 u7 S* E) ]7 Xservice rdisc stop
, O2 J0 a( A/ ]% t* Qservice restorecond stop7 M( K$ N! }% x
service rpcgssd stop
) o* R, u( i& Y8 L& wservice rpcidmapd stop
, W7 n+ E, { g# L* `' C+ U Z+ Aservice rpcsvcgssd stop
, d( a: w0 n6 S- ?0 W( kservice saslauthd stop0 C1 f" D. [0 t; E/ A
service sendmail stop1 Q* U9 N; T1 H0 x
service setroubleshoot stop
' l8 Z* w, {% j5 hservice smb stop0 S7 x8 k0 X6 T( c
service vncserver stop: k& Z9 v3 c( f: x6 g( i0 }
service winbind stop
% ~- Q9 b, g+ iservice wpa_supplicant stop
0 d! Q: E3 z( U0 J2 Mservice xfs stop
& e* g7 W( Q& a+ e, kservice ypbind stop9 A( E7 `# S Y7 N( M/ N
service yum-updatesd stop
# W$ |. L& n7 [( o2 ~. c- Xchkconfig acpid off
3 ^4 R% v- y& l& l! {- u6 |; s' Achkconfig atd off+ o- n* Z' j0 b5 h2 [$ F8 a: H
chkconfig auditd off
2 f) _7 a: H7 z+ f- }1 T0 T0 ^chkconfig avahi-daemon off& V2 B8 m2 U8 n# M
chkconfig avahi-dnsconfd off
( ?, x) |( i: W8 N$ E& T5 a3 k! hchkconfig bluetooth off
, H; P+ A# g7 b1 \: Hchkconfig conman off8 |. _+ o# [# S- g# D
chkconfig cpuspeed off6 \ c- h8 o! f) i! }
chkconfig cups off, c. b* E' ^* a
chkconfig dnsmasq off
V( _9 A) J( w" A3 B! kchkconfig dund off! W) X! B% p4 j* P
chkconfig firstboot off
7 \+ n6 T4 x1 g. V( `chkconfig hidd off4 x0 J2 Y' j7 U' p1 r0 {, e
chkconfig httpd off8 r, ~; E% Y! P
chkconfig ibmasm off4 K, |1 d# k/ }! J5 z
chkconfig ip6tables off0 e3 f; R( ~* M1 c7 y( J
chkconfig irda off0 N3 N. W3 W/ v5 M3 r2 Y9 [+ ?8 ?! v
chkconfig kdump off3 l x% h' z" u1 g3 u
chkconfig lm_sensors off
% \/ [2 Z: @! A4 P( R& jchkconfig mcstrans off7 ~) D" C1 ~$ B. \* N5 T
chkconfig messagebus off/ X6 G+ _7 l9 q' C3 O, @
chkconfig microcode_ctl off$ l, P' R6 f- [' ?* l
chkconfig netconsole off. B" e a# _, h& R( L3 ]3 v" g
chkconfig netfs off0 `% _8 _0 j) [; j
chkconfig netplugd off5 s' i3 e) H% H4 c: s; h* k) r
chkconfig nfs off+ H1 J2 t( [/ K1 H
chkconfig nfslock off. N3 _" O0 ~$ `- D U( C
chkconfig nscd off
; y2 J) e& e& l4 {chkconfig ntpd off: _: a9 T. \$ t" t! ^
chkconfig oddjobd off) J" l1 t$ t8 P& f
chkconfig pand off
0 K: k+ e o2 xchkconfig pcscd off
1 n9 j+ Z7 z* S* ]- Vchkconfig portmap off* x4 A' Y1 K, o5 X# @
chkconfig psacct off
$ Y+ w: Z3 H+ h, A, p# o# ~+ rchkconfig rdisc off7 S( C4 q2 {' Q/ B* N8 P2 Z: l5 c
chkconfig restorecond off
: D7 G1 E7 O& m/ ]( R; o2 `. Gchkconfig rpcgssd off
5 _, S. e: r. v }- }! \chkconfig rpcidmapd off$ u9 x9 u$ y, {; e' d
chkconfig rpcsvcgssd off
y; W0 U0 u1 \3 t! g6 T. echkconfig saslauthd off8 t7 r* _: i5 f( f7 w' W5 C
chkconfig sendmail off
7 U6 h" ]" c9 Q7 _8 @, X9 }chkconfig setroubleshoot off# Z) l6 w3 m- N+ t+ L F7 N
chkconfig smb off3 u! c: s3 M4 k& h3 P" k3 I6 M
chkconfig vncserver off
1 B4 n7 k: [& u/ w& Q- S) Kchkconfig winbind off: m" B# i$ y1 I# h
chkconfig wpa_supplicant off, B9 m5 K2 U) Y! ?) K5 e1 ?
chkconfig xfs off! x5 q, j, U3 e/ _6 d. p/ M! H
chkconfig ypbind off( @$ b' R. L! o o$ v
chkconfig yum-updatesd off: |9 F' Q, I2 Y6 |1 P" |( i* z
这样通过上述 6 步骤，就可以完成对 centos 精简和优化。: R" u) z7 m; v h
8 k: I. s. _& ~0 T来源：https://www.moewah.com/archives/2407.html |
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发表于 2023-8-8 10:29:46