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[linux隞也 Linux 蝖祇雿喳隤踵 ---- 敺株矽sysctl.conf

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2017-8-28 11:01:58 | 芰閰脖 撣 |摨閬 |梯璅∪
Linux 閮剜舀銝餈啁隤踵,甇斗敹脰雿喳隤踵:( ]5 Q7 f7 Z) L+ m' y1 ?3 K$ b
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#vi /etc/sysctl.conf
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### 寥脩頂蝯梯園蝞∠ ###
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8 ]) a5 @( o) Q4 L5 l% M& L# 憭扳獢inode敹怠
2 F: T$ S; j+ ~fs.file-max = 2097152# c, x# F2 p' p: i  {" u

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; j+ x' Y9 c9 j$ M' a) f# 頛撠鈭斗
' I: H  D+ f: k/ x: X  o. Qvm.swappiness = 101 }* n8 A; Y% A
vm.dirty_ratio = 60
. n  q$ o+ J9 h" r5 V! svm.dirty_background_ratio = 2  c5 R  T6 n; T6 G8 i3 R9 p
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### 銝祉蝬脰楝摰券賊 ###
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# 鋡怠(passive)TCP亦SYNACKs甈⊥$ L  d0 I7 X- c' n6 D, q
net.ipv4.tcp_synack_retries = 27 Q( B5 H* c+ i# W! M2 a8 C! \

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net.ipv4.ip_local_port_range = 2000 65535% N) |$ s) g- n/ M' S

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# 貿CP Time-Wait靽霅# _; v+ J$ o  I1 m& E
net.ipv4.tcp_rfc1337 = 1
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# 雿撠 tcp_fin_timeout connection 閮剖8 I# i$ D2 [! a& P# h9 n
net.ipv4.tcp_fin_timeout = 15: ]; Z: f% u" N) g( q$ U
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# 雿蝺摮瘣餅閮剖, E: H; W) E  E# z
net.ipv4.tcp_keepalive_time = 300* v- ^( a% m9 N0 c$ `% j
net.ipv4.tcp_keepalive_probes = 5
  V; {3 ^( e7 Y, y3 n" Vnet.ipv4.tcp_keepalive_intvl = 15
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### 隤踵渡雯頝舀 ###
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. L5 G- d' }4 F4 Q& V. ?# 閮剔Socket交嗥楨摮8 D- ?' a: G% D2 o  A( @
net.core.rmem_default = 31457280& b7 j7 N; A0 F+ X  v5 e
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# 憭抒Socket交嗥楨摮3 ]9 A# x3 ?8 k& ^4 I/ F: ^9 S' w, t
net.core.rmem_max = 12582912
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8 v( V! K0 u( F6 A4 m# p; _# 閮剔Socket喲蝺拙' n! f: L3 T5 ]0 s& ^! G
net.core.wmem_default = 31457280$ g8 V, e" F$ b: R! N1 o+ O

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# 憭抒Socket喲蝺拙  u7 _# G( T$ q7 O9 C+ x
net.core.wmem_max = 12582912
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, |) h8 ]% d0 m+ g# q+ X" F6 k. Z# c, ]7 s# 憭抒雯頝舫交+ ?9 s8 ^7 K/ ~, E6 \
net.core.somaxconn = 4096, l0 m: o) \8 H6 K
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# 憭抒雯頝舫亦backlog
0 [/ f2 j- `% _7 w2 c, q; C7 }net.core.netdev_max_backlog = 655369 N& C, v, Q& h* {/ V) L& o

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# 憭扯園蝺拙憭折
( S0 j/ p9 c2 N1 V$ w+ Nnet.core.optmem_max = 25165824* N$ o8 M( a2 O' H/ [" ]
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# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇" c& f6 ~% K0 U
# This is measured in units of pages (4096 bytes)$ y' b4 }" I% D8 a, N. j9 N4 o
net.ipv4.tcp_mem = 65536 131072 2621449 P7 h; g9 @8 Y# Z
net.ipv4.udp_mem = 65536 131072 262144
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) U% o, a: X1 C* x# 憭扯蝺拙臬蝛粹* ], R3 b# g7 ?! p
net.ipv4.tcp_rmem = 8192 87380 16777216' r5 [# E1 o- U' [; n
net.ipv4.udp_rmem_min = 16384
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- u* L6 P' h0 _3 n# 憭批神亦楨摮臬蝛粹
9 _8 |7 L- P3 f' Lnet.ipv4.tcp_wmem = 8192 65536 16777216) e, ?8 B/ h1 v
net.ipv4.udp_wmem_min = 163847 ~5 z$ y  O- ~/ N7 G8 |; t8 C

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# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅
2 F* c% S+ X: I& b: M0 a$ ]( cnet.ipv4.tcp_max_tw_buckets = 1440000
/ K# c) C) q7 \9 w! X3 K4 ynet.ipv4.tcp_tw_recycle = 1
: e; x! u; F; M$ v0 W# a1 o/ rnet.ipv4.tcp_tw_reuse = 15 O$ H  p5 }  W3 k7 v- k5 B9 L
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摮瑼隞亦# f: g3 G. o; B5 F6 J
#sysctl -p 頛亙歇霈
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靘皞:$ P( S& q# n; Q& ^. C( C6 Y

. ]6 C" A3 b; Y8 thttps://easyengine.io/tutorials/linux/sysctl-conf/8 h( P2 ?$ x7 S0 S  z1 @8 R
摰g砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0
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