脚本宝典收集整理的这篇文章主要介绍了linux sysctl参数配置详细介绍,脚本宝典觉得挺不错的,现在分享给大家,也给大家做个参考。
linux Sysctl参数配置
步骤及实现:
sudo vi /etc/sysctl.conf
代码:
# Kernel sysctl configuration file for red hat Linux # # For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and # sysctl.conf(5) for more details. # Controls the System Request debugging functionalITy of the kernel kernel.sysrq = 1 # Controls whether core dumps will apPEnd the PID to the core filename # Useful for debugging multi-threaded applications kernel.core_uses_pid = 1 # Controls the maximum size of a message, in bytes kernel.msgmnb = 65536 # Controls the default maXMimum size of a mesage queue kernel.msgmax = 65536 # Controls the maximum shared segment size, in bytes kernel.shmmax = 68719476736 # Controls the maximum number of shared memory segments, in pages kernel.shmall = 4294967296 # Controls IP packet forwarding net.ipv4.ip_forward = 0 # Controls source route verification net.ipv4.conf.default.rp_filter = 1 # Do not accept source routing net.ipv4.conf.default.accept_source_route = 0 # Controls the use of TCP syncookies net.ipv4.tcp_syncookies = 1 net.core.somaxconn = 10240 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 300 net.ipv4.tcp_synack_retries = 3 net.ipv4.tcp_syn_retries = 3 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.ipv4.tcp_no_metrics_save = 0 net.core.netdev_max_backLOG = 2500 net.ipv4.tcp_max_syn_backlog = 4196 net.IPv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 Xen.independent_wallclock = 1
重启,使修改生效
sudo sysctl -p
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