linux系统优化sysctl.conf【转】
# 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. # # Use '/sbin/sysctl -a' to list all possible parameters. # 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 System Request debugging functionality of the kernel kernel.sysrq = 0 # 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 use of TCP syncookies net.ipv4.tcp_syncookies = 1 # Controls the default maxmimum size of a mesage queue kernel.msgmnb = 65536 # Controls the maximum size of a message, in bytes 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 ###pvdriver<begin> net.ipv4.conf.all.arp_notify = 1 net.ipv4.conf.default.arp_notify = 1 net.ipv4.conf.eth0.arp_notify = 1 net.ipv4.conf.lo.arp_notify = 1 ###pvdriver<end> #solve 127.0.0.1 unreatched net.nf_conntrack_max = 2500000 net.netfilter.nf_conntrack_max = 2500000 net.netfilter.nf_conntrack_tcp_timeout_established = 180 net.netfilter.nf_conntrack_tcp_timeout_time_wait = 120 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60 net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 120 ##solve too many TIME_WAIT net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_fin_timeout = 30 ###solve closed_wait state net.ipv4.tcp_keepalive_time=600 net.ipv4.tcp_keepalive_probes=3 net.ipv4.tcp_keepalive_intvl=15
转载于:https://my.oschina.net/mylife993/blog/2999865