sysctl参数大全--kernel 2.6.18-92.el5

net.ipv4.conf.all.accept_source_route = 0 net.ipv4.conf.all.send_redirects = 1 net.ipv4.conf.all.rp_filter = 0

net.ipv4.conf.all.shared_media = 1 net.ipv4.conf.all.secure_redirects = 1 net.ipv4.conf.all.accept_redirects = 1 net.ipv4.conf.all.mc_forwarding = 0 net.ipv4.conf.all.forwarding = 0

net.ipv4.neigh.eth1.base_reachable_time_ms = 30000 net.ipv4.neigh.eth1.retrans_time_ms = 1000 net.ipv4.neigh.eth1.locktime = 99 net.ipv4.neigh.eth1.proxy_delay = 79 net.ipv4.neigh.eth1.anycast_delay = 99 net.ipv4.neigh.eth1.proxy_qlen = 64 net.ipv4.neigh.eth1.unres_qlen = 3 net.ipv4.neigh.eth1.gc_stale_time = 60

net.ipv4.neigh.eth1.delay_first_probe_time = 5 net.ipv4.neigh.eth1.base_reachable_time = 30 net.ipv4.neigh.eth1.retrans_time = 99 net.ipv4.neigh.eth1.app_solicit = 0 net.ipv4.neigh.eth1.ucast_solicit = 3 net.ipv4.neigh.eth1.mcast_solicit = 3

net.ipv4.neigh.eth0.base_reachable_time_ms = 30000 net.ipv4.neigh.eth0.retrans_time_ms = 1000 net.ipv4.neigh.eth0.locktime = 99 net.ipv4.neigh.eth0.proxy_delay = 79 net.ipv4.neigh.eth0.anycast_delay = 99 net.ipv4.neigh.eth0.proxy_qlen = 64 net.ipv4.neigh.eth0.unres_qlen = 3 net.ipv4.neigh.eth0.gc_stale_time = 60

net.ipv4.neigh.eth0.delay_first_probe_time = 5 net.ipv4.neigh.eth0.base_reachable_time = 30 net.ipv4.neigh.eth0.retrans_time = 99 net.ipv4.neigh.eth0.app_solicit = 0 net.ipv4.neigh.eth0.ucast_solicit = 3 net.ipv4.neigh.eth0.mcast_solicit = 3

net.ipv4.neigh.lo.base_reachable_time_ms = 30000 net.ipv4.neigh.lo.retrans_time_ms = 1000 net.ipv4.neigh.lo.locktime = 99 net.ipv4.neigh.lo.proxy_delay = 79 net.ipv4.neigh.lo.anycast_delay = 99

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net.ipv4.neigh.lo.proxy_qlen = 64 net.ipv4.neigh.lo.unres_qlen = 3 net.ipv4.neigh.lo.gc_stale_time = 60

net.ipv4.neigh.lo.delay_first_probe_time = 5 net.ipv4.neigh.lo.base_reachable_time = 30 net.ipv4.neigh.lo.retrans_time = 99 net.ipv4.neigh.lo.app_solicit = 0 net.ipv4.neigh.lo.ucast_solicit = 3 net.ipv4.neigh.lo.mcast_solicit = 3

net.ipv4.neigh.default.base_reachable_time_ms = 30000 net.ipv4.neigh.default.retrans_time_ms = 1000 net.ipv4.neigh.default.gc_thresh3 = 1024 net.ipv4.neigh.default.gc_thresh2 = 512 net.ipv4.neigh.default.gc_thresh1 = 128 net.ipv4.neigh.default.gc_interval = 30 net.ipv4.neigh.default.locktime = 99 net.ipv4.neigh.default.proxy_delay = 79 net.ipv4.neigh.default.anycast_delay = 99 net.ipv4.neigh.default.proxy_qlen = 64 net.ipv4.neigh.default.unres_qlen = 3 net.ipv4.neigh.default.gc_stale_time = 60

net.ipv4.neigh.default.delay_first_probe_time = 5 net.ipv4.neigh.default.base_reachable_time = 30 net.ipv4.neigh.default.retrans_time = 99 net.ipv4.neigh.default.app_solicit = 0 net.ipv4.neigh.default.ucast_solicit = 3 net.ipv4.neigh.default.mcast_solicit = 3

net.ipv4.udp_wmem_min = 4096 net.ipv4.udp_rmem_min = 4096

net.ipv4.udp_mem = 385920 514560 771840

net.ipv4.cipso_rbm_strictvalid = 1 net.ipv4.cipso_rbm_optfmt = 0

net.ipv4.cipso_cache_bucket_size = 10 net.ipv4.cipso_cache_enable = 1

net.ipv4.tcp_slow_start_after_idle = 1 net.ipv4.tcp_dma_copybreak = 4096

net.ipv4.tcp_workaround_signed_windows = 0 net.ipv4.tcp_base_mss = 512 net.ipv4.tcp_mtu_probing = 0 net.ipv4.tcp_abc = 0

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net.ipv4.tcp_congestion_control = bic net.ipv4.tcp_tso_win_divisor = 3 net.ipv4.tcp_moderate_rcvbuf = 1 net.ipv4.tcp_no_metrics_save = 0 net.ipv4.ipfrag_max_dist = 64

net.ipv4.ipfrag_secret_interval = 600 net.ipv4.tcp_low_latency = 0 net.ipv4.tcp_frto = 0

net.ipv4.tcp_tw_reuse = 0

net.ipv4.icmp_ratemask = 6168 net.ipv4.icmp_ratelimit = 1000 net.ipv4.tcp_adv_win_scale = 2 net.ipv4.tcp_app_win = 31

net.ipv4.tcp_rmem = 4096 87380 4194304 net.ipv4.tcp_wmem = 4096 16384 4194304 net.ipv4.tcp_mem = 196608 262144 393216 net.ipv4.tcp_dsack = 1 net.ipv4.tcp_ecn = 0

net.ipv4.tcp_reordering = 3 net.ipv4.tcp_fack = 1

net.ipv4.tcp_orphan_retries = 0

net.ipv4.inet_peer_gc_maxtime = 120 net.ipv4.inet_peer_gc_mintime = 10 net.ipv4.inet_peer_maxttl = 600 net.ipv4.inet_peer_minttl = 120

net.ipv4.inet_peer_threshold = 65664

net.ipv4.igmp_max_msf = 10

net.ipv4.igmp_max_memberships = 20

net.ipv4.route.secret_interval = 600 net.ipv4.route.min_adv_mss = 256 net.ipv4.route.min_pmtu = 552 net.ipv4.route.mtu_expires = 600 net.ipv4.route.gc_elasticity = 8 net.ipv4.route.error_burst = 5000 net.ipv4.route.error_cost = 1000

net.ipv4.route.redirect_silence = 20480 net.ipv4.route.redirect_number = 9 net.ipv4.route.redirect_load = 20 net.ipv4.route.gc_interval = 60 net.ipv4.route.gc_timeout = 300

net.ipv4.route.gc_min_interval_ms = 500

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net.ipv4.route.gc_min_interval = 0 net.ipv4.route.max_size = 2097152 net.ipv4.route.gc_thresh = 131072 net.ipv4.route.max_delay = 10 net.ipv4.route.min_delay = 2

net.ipv4.icmp_errors_use_inbound_ifaddr = 0 net.ipv4.icmp_ignore_bogus_error_responses = 1 net.ipv4.icmp_echo_ignore_broadcasts = 1 net.ipv4.icmp_echo_ignore_all = 0

net.ipv4.ip_local_port_range = 32768 net.ipv4.tcp_max_syn_backlog = 1024 net.ipv4.tcp_rfc1337 = 0 net.ipv4.tcp_stdurg = 0

net.ipv4.tcp_abort_on_overflow = 0 net.ipv4.tcp_tw_recycle = 0 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_fin_timeout = 60 net.ipv4.tcp_retries2 = 15 net.ipv4.tcp_retries1 = 3

net.ipv4.tcp_keepalive_intvl = 75 net.ipv4.tcp_keepalive_probes = 9 net.ipv4.tcp_keepalive_time = 7200

net.ipv4.ipfrag_time = 30 net.ipv4.ip_dynaddr = 0

net.ipv4.ipfrag_low_thresh = 196608 net.ipv4.ipfrag_high_thresh = 262144 net.ipv4.tcp_max_tw_buckets = 180000 net.ipv4.tcp_max_orphans = 65536 net.ipv4.tcp_synack_retries = 5 net.ipv4.tcp_syn_retries = 5 net.ipv4.ip_nonlocal_bind = 0 net.ipv4.ip_no_pmtu_disc = 0 net.ipv4.ip_default_ttl = 64 net.ipv4.ip_forward = 0

net.ipv4.tcp_retrans_collapse = 1 net.ipv4.tcp_sack = 1

net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_timestamps = 1

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