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os:linux:set:kernel:etc_sysctl.conf.html



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os:linux:set:kernel:etc_sysctl.conf.html [2017/11/18 01:26]
kurihara [/etc/sysctl.conf] 		os:linux:set:kernel:etc_sysctl.conf.html [2018/02/04 23:24]
kurihara ↷ Links adapted because of a move operation
Line 1: Line 1:
-====== Configuration of /etc/sysctl.conf ======+~~NOTOC~~ 
 +[[os:linux:set:index.html]] 
 +====== /etc/sysctl.conf======
  
  
Line 6: Line 8:
  
 <sxh bash toolbar:false gutter:false> <sxh bash toolbar:false gutter:false>
-#=======================================================+#==============================================================================
 # /etc/sysctl # /etc/sysctl
 # -rw-r--r-- root root # -rw-r--r-- root root
Line 16: Line 18:
 #     reflect : syctl -p #     reflect : syctl -p
 # #
-#========================================================+#==============================================================================
  
  
-## Memory (vm)  ###############################################+#------------------------------------------------------------------------------ 
 +# Memory (vm)  
 +#------------------------------------------------------------------------------
 vm.swappiness = 0  # default 30 vm.swappiness = 0  # default 30
 vm.max_map_count = 300000  # default 65530 vm.max_map_count = 300000  # default 65530
Line 25: Line 29:
  
  
- +#------------------------------------------------------------------------------ 
- +# Network 
- +#------------------------------------------------------------------------------ 
-## TCP (net) ################################################## +# TCP keepalive
-# keepalive+
 net.ipv4.tcp_keepalive_time = 60  # defautl 7200 net.ipv4.tcp_keepalive_time = 60  # defautl 7200
 net.ipv4.tcp_keepalive_intvl = 3  # default 75 net.ipv4.tcp_keepalive_intvl = 3  # default 75
Line 36: Line 39:
 # 60sec + 3sec * 9 = 567sec = 9.56min # 60sec + 3sec * 9 = 567sec = 9.56min
  
- +# tcp connection 
-# disable IPv6 +net.nf_conntrack_max = 1048576
-net.ipv6.conf.all.disable_ipv6 = 1 +
-net.ipv6.conf.lo.disable_ipv6 = 1 +
-net.ipv6.conf.default.disable_ipv6 = 1+
  
 # port exhaustion # port exhaustion
Line 51: Line 51:
 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_reuse = 1
  
 +# disable IPv6 (CentOS7)
 +net.ipv6.conf.all.disable_ipv6 = 1
 +net.ipv6.conf.lo.disable_ipv6 = 1
 +net.ipv6.conf.default.disable_ipv6 = 1
  
  
-## Kernel  ####################################################+#------------------------------------------------------------------------------ 
 +# Kernel 
 +#------------------------------------------------------------------------------
 kernel.threads-max = 100000  # default 5782 kernel.threads-max = 100000  # default 5782
 kernel.pid_max = 131072   # default 32768 kernel.pid_max = 131072   # default 32768
Line 60: Line 66:
  
  
 +\\
 +<WRAP box 90%>
 +<catlist ..: -noAddPageButton -smallHead>
 +</WRAP>
  
 +\\
 +\\
 +[[os:linux:set:index.html]]


os/linux/set/kernel/etc_sysctl.conf.html.txt · Last modified: 2018/02/17 01:43 by kurihara

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