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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:1 y; ^1 I! J; E9 U0 @

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#vi /etc/sysctl.conf
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### 寥脩頂蝯梯園蝞∠ ###
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# 憭扳獢inode敹怠
  y3 {: I/ Q$ {fs.file-max = 20971521 z9 O! U" D+ B0 D
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: H' N1 ~3 t# s% i' K/ C# 頛撠鈭斗. m: t! b8 D9 m7 F
vm.swappiness = 104 M9 d, d0 Q, |, l
vm.dirty_ratio = 60* U1 `9 L8 O9 z7 N% Q' F
vm.dirty_background_ratio = 2
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! E, f# V2 Z/ T2 K; Z' U4 C9 T### 銝祉蝬脰楝摰券賊 ###
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! t7 @) P' `- g" p# S# 鋡怠(passive)TCP亦SYNACKs甈⊥9 S# l+ ], A2 N0 }: M
net.ipv4.tcp_synack_retries = 2: H) J! r+ T& K, w3 `5 F

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; ]- A8 y* u  c+ ~' z. J( t! s#  閮望祆蝬脰楝仿蝭
2 m6 H' G$ g/ nnet.ipv4.ip_local_port_range = 2000 65535
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# 貿CP Time-Wait靽霅, V9 Z6 n* K3 `/ Z% H: U
net.ipv4.tcp_rfc1337 = 1$ r8 n: `) F  c' p% a# b+ H
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1 l( m2 k: Q: T+ v1 b# 雿撠 tcp_fin_timeout connection 閮剖" o! |' b* ]- {1 O- J2 Q0 L
net.ipv4.tcp_fin_timeout = 15
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/ P9 C; ]1 E% U( M/ X* }# 雿蝺摮瘣餅閮剖
7 d" ^& ?# p/ c3 v% Y: q! n. vnet.ipv4.tcp_keepalive_time = 300
: T/ k  H, a. \net.ipv4.tcp_keepalive_probes = 5
* C2 z) ^' O, h( {, rnet.ipv4.tcp_keepalive_intvl = 15
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### 隤踵渡雯頝舀 ###
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1 n9 K. A$ Q6 N! B8 C# 閮剔Socket交嗥楨摮
$ b6 y) T( b$ `8 K* ynet.core.rmem_default = 31457280
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& }- ^) L, S1 ?+ H/ U# 憭抒Socket交嗥楨摮6 Z& w, f6 |. \: s$ Y. l) e
net.core.rmem_max = 12582912
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) {8 r) i3 K2 X: s2 I' [4 F7 P# 閮剔Socket喲蝺拙( y1 x! g7 `1 @# R7 o; y( n
net.core.wmem_default = 314572800 U! V' X! T1 B- j% s
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# 憭抒Socket喲蝺拙1 }3 M( j5 E7 z" \+ ^( {
net.core.wmem_max = 125829122 P! l" g6 O2 _' a! H/ r# Y6 j/ @

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  S+ u$ ^% U, U# 憭抒雯頝舫交
0 z0 }1 \5 Y7 |" z* B6 x; ~1 Cnet.core.somaxconn = 4096! F4 _4 z( |4 f$ |4 l! B& B- T
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# 憭抒雯頝舫亦backlog3 M" c5 G) q! j( C& d; V
net.core.netdev_max_backlog = 65536
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# 憭扯園蝺拙憭折
8 M2 M* [' ?+ V5 E$ }net.core.optmem_max = 25165824
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# Increase the maximum total buffer-space allocatable憭批臬蝺拙蝛粹憭抒蜇
( B* c+ d7 L5 ^, x; _) O# This is measured in units of pages (4096 bytes)1 i- `5 I& e* a& F
net.ipv4.tcp_mem = 65536 131072 262144
9 b7 y# K( o; p& J! }3 |$ e: ^net.ipv4.udp_mem = 65536 131072 262144
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# 憭扯蝺拙臬蝛粹/ T2 f3 E* F0 S# T$ H/ j$ m
net.ipv4.tcp_rmem = 8192 87380 16777216; ], x9 p9 H# a0 E7 C, C& C
net.ipv4.udp_rmem_min = 16384, W& I& }/ x( {/ B0 O5 k( Y- M
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net.ipv4.tcp_wmem = 8192 65536 16777216
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& o$ ?: ~6 ~; n2 N. s  ^$ }, k# 憭含cp-time-wait獢嗅瘙賊隞仿脩陛DOS餅+ ]. M! u# b  j3 N0 r
net.ipv4.tcp_max_tw_buckets = 1440000
" p+ G' t' D. i4 y2 V0 Wnet.ipv4.tcp_tw_recycle = 19 X8 \: p1 m" O0 w
net.ipv4.tcp_tw_reuse = 11 k8 G9 N% R# [7 S

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摮瑼隞亦, l: b$ `) j$ H4 E5 n4 r  y3 `$ U) V5 D
#sysctl -p 頛亙歇霈5 y% P1 E/ Q7 L

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靘皞:+ s% n' `3 W% W* R% B

3 Z7 ?/ v5 X2 Ohttps://easyengine.io/tutorials/linux/sysctl-conf/
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摰g砍梯批捆閬蝛擃 888999999999 舐閬踝函嗅蝛 0
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