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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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! Y0 E, |: Y) k! ~8 X' j0 D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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4 Y$ Y3 `9 t2 T* z4 j# jCentOS 系统精简优化
3 l$ Q1 U& g. u+ y5 d* ^4 I9 `删除不必要的自带软件包3 x& W& j6 s: N6 y; H# Z
6 B, |0 F2 z, T, h+ Byum remove Deployment_Guide-en-US finger cups-libs cups ypbind& @ a+ t/ r* X5 v2 I
yum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils
6 n' H+ t) I8 v A: f+ Uyum remove sendmail* samba* talk-server finger-server bind* xinetd
* y r) P- p8 L- x" oyum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
7 v+ w* p1 L4 T/ H: Nyum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools
# K8 E5 w8 O/ m8 A/ `yum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"
* z* B; `9 [# b6 Hyum groupremove "Development Libraries" "Dialup Networking Support"7 ?& `8 a$ [9 y; N
yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"; ?; X# l$ X0 G( P! k8 t
yum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development": i# T3 E+ }- b v4 u" d7 k
升级 centos 系统7 q' R/ X( N' x
$ m Z; T* `9 uyum update #更新系统
8 i$ Y/ C5 ]7 v! l: V0 p; ~& B$ `yum clean all #清理全部缓存文件
3 e( I% {9 V3 J6 ~禁用 seLinux# j, O, I- j) d/ p
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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
O4 P0 w R. V+ v$ u fvi /etc/selinux/config
) f4 e" ]# o! z; |& ZSELINUX=disabled #禁用SeLinux
, e/ Y8 m. J* Q# P; d# PSELINUX=enforcing #使用SeLinux ~, r) [, v: l4 n
禁止 IPV6（执行后需要 reboot 重启）
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vi /etc/modprobe.conf #打开文件，把下面两行加到最后
6 o. {. [7 Y0 ?2 K3 p" `alias net-pf-10 off
5 \+ q7 U/ J# t3 balias ipv6 off
& D/ y p9 i/ S初始化防火墙
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7 o9 m( V) P+ I K/ S, jtouch /etc/sysconfig/iptables2 h8 W5 r$ ^! U7 X7 z
iptables -F, e" _0 A8 q- I! l3 R
iptables -X
- B% x+ U# H# H- N) N! h7 Wiptables -Z
" l. Z! Y; ~8 ~0 Kservice iptables save
) B0 w/ W0 x5 Q: l; V) w% \service iptables restart
6 P) R2 t/ [* O8 J! O禁止无用服务: }5 E: X3 V+ ^7 q
/ K( p: X L) E6 w5 Y#! /bin/bash' r( q/ N) G+ z7 }' E1 R( e: k& n
service acpid off
. S, J: g$ F0 ^, kservice atd stop
! _1 m' m9 ]3 O! t5 L" g, Iservice auditd stop, S! k9 }, e3 v* b' Z$ E6 R
service avahi-daemon stop
2 g4 J) O" d! F" m! f5 x( ^7 F0 Rservice avahi-dnsconfd stop
* c# {& Z- B3 |$ T" \0 ^# gservice bluetooth stop
9 L& O6 J9 P, N& Lservice conman stop; O. V7 k. A8 }
service cpuspeed stop% s* a% L; i# w+ n s
service cups stop
$ z5 B/ A& |. d# ]' lservice dnsmasq stop: R" o# `! N" G8 k
service dund stop# ?$ W( ]/ e3 E6 X1 a5 h, T
service firstboot stop
" S8 X8 j" @5 D0 hservice hidd stop
4 |5 Z% _* l% @# u3 i- iservice httpd stop1 h- n0 N6 g$ J" G& ?
service ibmasm stop8 l6 M' p6 j( ?9 V/ u
service ip6tables stop
; {7 z2 V" E7 Hservice irda stop5 S& b7 ?* W6 [. O0 Y9 {
service kdump stop" N! A9 }0 W0 b: V, { U
service lm_sensors stop
7 B( X5 a! c" f' O! c; Hservice mcstrans stop5 K1 B1 Y& Y0 D$ K `$ @8 M. i
service messagebus stop. }, B0 X+ x4 W$ t, x5 S
service microcode_ctl stop/ i5 }& Z$ t4 U- f
service netconsole stop& ?9 {% ^# u# C f5 b
service netfs stop. ^2 X2 y: ]( J
service netplugd stop- K5 e, @) @% { ~0 C5 G3 y; V
service nfs stop
E' q( h0 p* @) a3 cservice nfslock stop
0 Y* @+ f) w: L( F1 q7 K. P% G% d% gservice nscd stop+ j9 Z. r' e8 t' o9 q
service ntpd stop, e2 c9 Q! h5 B3 _, {- d5 r
service oddjobd stop/ Y! y$ R5 s$ ]; Q+ ~ }
service pand stop
% D% G0 M; k. ^- K; {3 {1 gservice pcscd stop
/ d/ q/ U3 H" V- Dservice portmap stop# Y6 L! g9 C, ]
service psacct stop/ ^& A: c8 \, L1 y1 v7 w3 J
service rdisc stop' r4 r, o4 i( \, |0 L7 E# _9 _
service restorecond stop
! N2 a( h5 ^5 X. Oservice rpcgssd stop
; |9 e( g0 U6 m4 M' U4 tservice rpcidmapd stop
% P7 |$ h& R% ?) iservice rpcsvcgssd stop
0 G, b0 Y8 f/ x! V0 Wservice saslauthd stop
+ {3 i3 u" U& Rservice sendmail stop
5 w K \6 ?- Z; D$ d6 ~" A" mservice setroubleshoot stop
: e; S5 N( ?/ b, }, w' gservice smb stop
2 v+ `4 f" q6 O3 Jservice vncserver stop; y1 B" e. H. j: x0 E; o, i0 {
service winbind stop
( K1 E* n4 @; k- n- B& R9 H Uservice wpa_supplicant stop
s# K1 `1 L* [+ G0 C; K$ m+ dservice xfs stop5 _4 l" A+ q- a e4 r+ K
service ypbind stop$ |+ u. g2 j0 Q( B1 q: ~7 D( o5 P
service yum-updatesd stop
2 x" t4 _; }9 v# v, {' xchkconfig acpid off0 u. V) O" k: |5 N: D/ W
chkconfig atd off
% J/ e5 B" k3 _) x2 Z1 achkconfig auditd off
8 S: ^. O$ e7 M+ w. I' B- Rchkconfig avahi-daemon off
8 r) E. d0 d8 Vchkconfig avahi-dnsconfd off
, F* \2 C8 V' B8 n- lchkconfig bluetooth off5 S% D: f0 G6 |; t: R; I/ y9 b
chkconfig conman off# I; M; B3 u2 }% A: U% {6 s, `/ S6 ^
chkconfig cpuspeed off
" B/ w* ?0 R9 d- d& A( Achkconfig cups off# k" ^9 T; g8 k! }% t
chkconfig dnsmasq off) F) r" X6 ^+ r) k Z, O7 d+ {8 {
chkconfig dund off1 v2 }3 P. ?$ w: l! v, O+ O
chkconfig firstboot off* e" u8 @3 a, O4 y. d' l
chkconfig hidd off2 D/ [8 ]7 M `6 d
chkconfig httpd off
8 F1 z% S% ] k+ y& }, {" achkconfig ibmasm off; j3 g* }( `& w: \ L0 Z- y$ r
chkconfig ip6tables off
9 Q" O9 |! a- y. z3 C w5 qchkconfig irda off
' W9 f; Z- ~3 \6 J4 Ychkconfig kdump off" |6 ?- ]) z9 O9 M7 T5 m5 q' I. w/ u
chkconfig lm_sensors off A; x. w, Q6 Q$ C9 @! t3 Q
chkconfig mcstrans off# Z, |2 Q) r, x
chkconfig messagebus off
% ~& w/ E* p4 p$ k# H1 I" Uchkconfig microcode_ctl off
/ \6 N: R; }, b' V; u% Dchkconfig netconsole off/ v" }+ S7 @5 m1 h6 ]( N5 M, r1 u) T
chkconfig netfs off& j! |* ]* a9 [
chkconfig netplugd off8 o5 ? Q+ P7 Q1 ?7 x7 ^
chkconfig nfs off
. J0 K ]5 u4 P0 u& r* a) v1 mchkconfig nfslock off* U5 P: ~& L6 `2 }2 ]: `
chkconfig nscd off
% c, }+ @, c! V( U: I" Lchkconfig ntpd off
/ R; \+ U# W1 \) C3 @chkconfig oddjobd off: A2 h+ k$ ]) W6 D$ j; @/ C7 n- R8 ?
chkconfig pand off; s* e: C3 I7 g# Q
chkconfig pcscd off" O3 P: F9 [# D
chkconfig portmap off- V9 x! B% b, f: O, T) M ?
chkconfig psacct off
7 Z, } i; H/ I, { R, R4 r) Achkconfig rdisc off% t" s! d! K$ N1 ]4 [& X \1 z; w
chkconfig restorecond off
) O6 _% u7 o3 V! F2 C' pchkconfig rpcgssd off/ J# U/ _7 b" C7 s; s/ V
chkconfig rpcidmapd off
/ W9 F% z! b( U. z. xchkconfig rpcsvcgssd off
! B" a2 G0 g& K- e3 Jchkconfig saslauthd off
+ _ }% a3 i; \9 nchkconfig sendmail off
0 ?$ S7 M3 X. ?# h6 y. Kchkconfig setroubleshoot off
1 e7 c' _7 Z" B6 W' S8 r3 Ichkconfig smb off, O8 G: b0 n7 ^) I
chkconfig vncserver off
5 l0 I% o! X1 O0 Zchkconfig winbind off3 y" y& _1 g5 `
chkconfig wpa_supplicant off
_$ n+ G: g# n0 v& vchkconfig xfs off- j. _$ ~) w6 i; P
chkconfig ypbind off, U$ x6 E3 j& C% l
chkconfig yum-updatesd off
! T, [. x0 u5 M6 J4 U. c这样通过上述 6 步骤，就可以完成对 centos 精简和优化。8 _# }$ z' M$ z, w* U2 K! i8 d" Z. t
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发表于 2023-8-8 10:29:46