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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! k/ r4 c) @, C& X- Y* C
删除不必要的自带软件包6 _# C. n( [+ l: @4 ]" \8 v
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yum remove Deployment_Guide-en-US finger cups-libs cups ypbind
& \$ V$ d, y3 X% h- s; zyum remove bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils) e! K$ ?/ w+ k$ c1 W7 }' A; q- y9 {5 I
yum remove sendmail* samba* talk-server finger-server bind* xinetd" V' H) X/ Q7 a m) T
yum remove nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools
1 c# K7 \9 X- `+ V$ B9 i5 D$ Z% w! Byum remove syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools5 n0 t' q% _# h
yum groupremove "Mail Server" "Games and Entertainment" "X Window System" "X Software Development"- M. A4 d2 F: r5 D
yum groupremove "Development Libraries" "Dialup Networking Support"
5 W7 E8 Y9 `1 D$ q v1 ?8 f6 {yum groupremove "Games and Entertainment" "Sound and Video" "Graphics" "Editors"- c( t$ N. T. e& G+ ?
yum groupremove "Text-based Internet" "GNOME Desktop Environment" "GNOME Software Development"
0 _! h% J) n+ `( Z, Y+ ^+ C" O. A6 M升级 centos 系统
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9 u8 a/ K: k1 t; g# I$ l/ P- J Tyum update #更新系统
. O. |. P; I$ C7 a: iyum clean all #清理全部缓存文件
! p4 ], y- m: z: o; l3 E) m7 Y, O禁用 seLinux' A8 K& r6 S2 u0 {- i/ d% p
/ X3 T8 j+ i4 a9 _8 Qsestatus #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) g/ ^; B) Y( ^* {
vi /etc/selinux/config2 b3 Z* W! _ i0 Y
SELINUX=disabled #禁用SeLinux
* i' Y$ v8 I% G) YSELINUX=enforcing #使用SeLinux
6 `, ~4 v d# y9 A# \& k禁止 IPV6（执行后需要 reboot 重启）
% U! b4 @# W8 t; E, P4 e
. y( i/ Q! g/ j: E- ovi /etc/modprobe.conf #打开文件，把下面两行加到最后
k0 G" z8 l" F) ralias net-pf-10 off
: z- y2 A3 |( |+ D; Oalias ipv6 off, ?5 F8 B, c5 o1 |% O
初始化防火墙$ H6 ~ Z$ e) e; O
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touch /etc/sysconfig/iptables
) p7 y# u5 B+ F/ j) Miptables -F
0 I& q8 n# U2 {# O s9 E- @iptables -X% u& l+ W h! t/ V; {
iptables -Z
9 _* l( K0 \8 R" Hservice iptables save
. P' F0 q/ g1 W r8 e5 c& oservice iptables restart& j" `+ v1 g% u8 F
禁止无用服务9 u& E5 d/ V' ?: ~& q
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#! /bin/bash
: P, O# I/ y4 I3 h- {- {% l6 }) gservice acpid off4 o$ l: W7 s* E2 g
service atd stop6 g# Z1 g' V( Q5 i" P
service auditd stop
1 U4 w: q( U# S! U+ t, G5 Fservice avahi-daemon stop
9 q3 |& S( O0 L: `1 u7 Pservice avahi-dnsconfd stop8 E; Q; r! x5 X$ L4 h& Q) E
service bluetooth stop9 s$ f; c, Y% A+ ?
service conman stop
3 X7 x: i' L' `. Uservice cpuspeed stop
0 M) x! L" l& N* y+ B* G3 z! vservice cups stop
9 R+ j/ Z9 W/ c0 E: J3 B4 X% h) hservice dnsmasq stop' W6 S' B& X& a! w O) W
service dund stop, s; f @5 T& ?& ?6 l* t- ^2 K7 X
service firstboot stop- u/ M9 m$ E f) `, p- o
service hidd stop/ Y3 j/ E2 d; K
service httpd stop
0 t) P6 x V; j" c, rservice ibmasm stop) G& _4 U |4 x; ~; [
service ip6tables stop3 w- }7 Z" J6 V+ _' E+ Q$ i% n
service irda stop0 d6 {2 w- D) {# p! @1 ?0 _- E/ m
service kdump stop- d! \! `! o# [
service lm_sensors stop/ m, _" i. T+ q7 e6 e8 b
service mcstrans stop) t9 g( v _8 G" r' m
service messagebus stop
0 f/ N C" r5 {7 oservice microcode_ctl stop; m$ g2 @5 M: N1 A
service netconsole stop
9 m8 I" G) o2 H- q; v6 \ B/ ~service netfs stop
* y6 ], a. |2 K& j) ~" r8 v% Pservice netplugd stop
; J5 o, Q0 ^( R) h Y) bservice nfs stop
" N8 H6 L* p2 [; Vservice nfslock stop8 D1 f2 N% L `% n- u+ z8 N
service nscd stop- A% `! I" P! j2 _$ L
service ntpd stop3 \* j& z7 |0 k. S- K s$ n1 z
service oddjobd stop2 M( @- Y2 F3 g# z3 ?1 @' n- a5 [
service pand stop
/ q; p" |5 v( P$ U9 P5 K( C. Y+ }- d8 ]service pcscd stop; d5 @: E( K7 W
service portmap stop& H/ b, s. x' O4 r) ?) u
service psacct stop+ r5 x" K4 p; X, [0 B2 q) V2 k
service rdisc stop
# n3 |; f6 m4 Q. L kservice restorecond stop
. Q3 K0 x( C; {service rpcgssd stop
6 i+ \4 I! Y. x8 y Gservice rpcidmapd stop [- V# R+ E4 L; [# G8 P: A
service rpcsvcgssd stop0 q' k' z5 \3 D7 X/ h9 S
service saslauthd stop: O; _9 G. p6 {: @# @
service sendmail stop
; t, W0 v/ z. D# y2 {* u; h y6 E3 ^service setroubleshoot stop: ]3 f$ O# T2 i$ d
service smb stop
# [% ]- ^+ {6 M' k/ \' w5 ?service vncserver stop
r. O% A, y& V0 ~% Eservice winbind stop
3 R" `% M( ~3 ]# ]" n8 a( Pservice wpa_supplicant stop
% _: p; h( x3 @0 `/ Bservice xfs stop1 z2 V% r9 Y& F* L/ N- r. |
service ypbind stop
# P6 _6 T) C) U9 y4 B) sservice yum-updatesd stop6 M9 e, \+ n* m2 |$ F4 a6 ?8 Y) b
chkconfig acpid off& [7 `, n. {. O# C4 R, g
chkconfig atd off$ @* f8 M, ^6 q
chkconfig auditd off
: r. q. ~2 |1 V( Echkconfig avahi-daemon off
% c: G: ]" j" Z, _# P7 O& G: Vchkconfig avahi-dnsconfd off0 G+ A- P: w) _- N. Y/ C- p: }
chkconfig bluetooth off( o, b' p; b' E. n
chkconfig conman off2 k* N6 T5 A4 x: A# D: z a
chkconfig cpuspeed off: V# L) o6 E- z8 B+ W& T& P& y Q$ q& E
chkconfig cups off
: L* K: r; \) r. t8 C' Wchkconfig dnsmasq off
3 ]& q* M, v5 p- I$ xchkconfig dund off
8 ^ n5 Z! T- fchkconfig firstboot off
. ]/ h, q/ x. f, }2 v4 f3 b- bchkconfig hidd off
9 k D/ @( {1 o3 c7 z2 v! qchkconfig httpd off6 L: g4 M4 {; R9 `
chkconfig ibmasm off
5 T" T: ^. S- m* L6 W7 { J/ {# Ochkconfig ip6tables off) w: y9 ~% ?% l
chkconfig irda off
1 M% x: |, h/ u+ i$ {7 A% t6 ]# f1 ]chkconfig kdump off
7 C- a }: Q; a1 S5 S$ M+ Xchkconfig lm_sensors off: b) Y$ a" `* G3 v" T3 E& u
chkconfig mcstrans off. j* t% X9 S L$ [, _2 g1 M) ?
chkconfig messagebus off: p" d. r' H, Z a! v8 Z
chkconfig microcode_ctl off
% c2 L( ]0 C7 z7 nchkconfig netconsole off, ]: ~+ B- Y, h* O7 D7 I
chkconfig netfs off
9 g( g, i, m$ D5 K: Wchkconfig netplugd off( r6 X' a$ A2 q5 O: x! T
chkconfig nfs off
/ x# Y1 C; r$ x1 M6 A5 n7 Nchkconfig nfslock off
( z( p" x9 n# k. h3 B0 j7 \chkconfig nscd off/ \6 g, O8 B, k/ ?$ @
chkconfig ntpd off
$ y- p, U& R* s: dchkconfig oddjobd off0 h1 w0 |' r% Z4 h
chkconfig pand off
, }! `8 |; t2 f, I- achkconfig pcscd off% S; ]) A* |' b5 x" V/ x
chkconfig portmap off
5 z5 j, S/ R# V lchkconfig psacct off
: [0 S1 O3 W: k- l' w- s) j% Nchkconfig rdisc off
8 K, w# d; m/ A- o7 A1 F$ u; m; b, Tchkconfig restorecond off: B0 o6 B1 ]3 {- L
chkconfig rpcgssd off
0 Q" J% P% X s2 Ichkconfig rpcidmapd off
5 \, G; I7 l2 X: uchkconfig rpcsvcgssd off6 [& N/ M% w5 C: o0 j( s& X" B
chkconfig saslauthd off
% G0 |9 W" W, Q8 S$ schkconfig sendmail off( I& y/ w; d" @7 _5 W, N
chkconfig setroubleshoot off7 y5 o4 \* u( r9 T
chkconfig smb off
. q9 E# ?/ D! V% `: M8 |9 ^; }chkconfig vncserver off
/ J* F/ P; ]; C/ ?; V! \; A" Zchkconfig winbind off
) ~1 ~5 g2 T) j7 Rchkconfig wpa_supplicant off. o- Q" h2 X& R1 I% c
chkconfig xfs off, M2 K6 C& y3 ^9 ?! }1 d( f& i+ L
chkconfig ypbind off
; ]( ^. E3 `6 p5 z; @chkconfig yum-updatesd off
: A( f1 U" t1 \/ m& F9 Z( z这样通过上述 6 步骤，就可以完成对 centos 精简和优化。6 Q+ x; j$ y3 M+ `6 T
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来源：https://www.moewah.com/archives/2407.html |
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发表于 2023-8-8 10:29:46