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POCent OS - sysctl.conf not working
 

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  1. POCent OS - sysctl.conf not working
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    <p>The settings i have applied in my sysctl.conf are not working. Not on reboot or after applying it using sysctl -p</p> <p>Below are my sysctl.conf settings. Can someone take a look and tell me what may be causing the issue?</p> <pre><code># 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 net.ipv4.tcp_keepalive_time = 4 net.ipv4.tcp_keepalive_probes = 1 net.ipv4.tcp_keepalive_intvl = 2 net.ipv4.tcp_fin_timeout = 4 net.ipv4.tcp_no_metrics_save = 1 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_rfc1337 = 1 net.ipv4.tcp_congestion_control= cubic net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.route.flush = 1 net.ipv4.tcp_orphan_retries = 0 net.core.netdev_max_backlog = 400000 net.core.optmem_max = 10000000 net.core.rmem_default = 10000000 net.core.rmem_max = 10000000 net.core.somaxconn = 100000 net.core.wmem_default = 10000000 net.core.wmem_max = 10000000 net.ipv4.conf.all.rp_filter = 1 net.ipv4.ip_local_port_range = 1024 65535 net.ipv4.tcp_ecn = 0 net.ipv4.tcp_max_syn_backlog = 12000 net.ipv4.tcp_max_tw_buckets = 2000000 net.ipv4.tcp_mem = 10240 8738000 825829120 net.ipv4.tcp_rmem = 10240 8738000 825829120 net.ipv4.tcp_sack = 1 net.ipv4.tcp_timestamps = 1 net.ipv4.tcp_wmem = 10240 8738000 825829120 net.netfilter.nf_conntrack_max = 768000 net.netfilter.nf_conntrack_generic_timeout = 4 net.netfilter.nf_conntrack_tcp_timeout_established = 4 net.netfilter.nf_conntrack_tcp_timeout_time_wait = 4 net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 4 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 4 net.netfilter.nf_conntrack_tcp_timeout_last_ack = 4 net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 4 net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 4 net.netfilter.nf_conntrack_tcp_timeout_close = 4 </code></pre>
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    1. USDarshan Walawalkar
    1. USDarshan Walawalkar
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      1. POCent OS - sysctl.conf not working
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      1. VTUpMod
    1. COAre you using an alternate iptables(netfilter) based firewall? Firewall's such as APF load their own locked down sysctl settings.
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      1. POCent OS - sysctl.conf not working
      1. USAlpha01
 

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