openwrt修改内核参数，降低pcdn的连接数

su5685

本地垃圾垃圾垃圾移动宽带限制了2000的连接数，双线宽带用openwrt连接数经常5000以上，网络立刻卡死无法上网，用爱快就没这问题连接数一直2000以下
仿照爱快的内核设置给openwrt，连接数降到3000一下，居然没爱快低 但能用再也没卡死了
修改/etc/sysctl.conf 复制下面的代码

net.netfilter.nf_conntrack_tcp_timeout_syn_recv=5
net.netfilter.nf_conntrack_tcp_timeout_syn_sent=5
net.netfilter.nf_conntrack_tcp_timeout_established=600
net.netfilter.nf_conntrack_tcp_timeout_fin_wait=10
net.netfilter.nf_conntrack_tcp_timeout_close_wait=10
net.netfilter.nf_conntrack_tcp_timeout_last_ack=10
net.netfilter.nf_conntrack_tcp_timeout_time_wait=10
net.netfilter.nf_conntrack_tcp_timeout_close=5
net.netfilter.nf_conntrack_udp_timeout=10
net.netfilter.nf_conntrack_udp_timeout_stream=60
net.netfilter.nf_conntrack_icmp_timeout=15

保存后重启生效，进shh 用sysctl net.netfilter 2>/dev/null | grep conntrack | grep timeout可以查看修改后的数值

1033310615

天堂征服者

感谢楼主大神！非常有用，持续测试使用中！

su5685

net.netfilter.nf_conntrack_icmp_timeout = 10
net.netfilter.nf_conntrack_icmpv6_timeout = 10
net.netfilter.nf_conntrack_tcp_timeout_close = 5
net.netfilter.nf_conntrack_tcp_timeout_close_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_established = 1800
net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_last_ack = 10
net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 5
net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 5
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 10
net.netfilter.nf_conntrack_udp_timeout = 10
net.netfilter.nf_conntrack_udp_timeout_stream = 60
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_keepalive_intvl = 10
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_fin_timeout = 10

su5685

net.netfilter.nf_conntrack_icmp_timeout = 10
net.netfilter.nf_conntrack_icmpv6_timeout = 10
net.netfilter.nf_conntrack_tcp_timeout_close = 5
net.netfilter.nf_conntrack_tcp_timeout_close_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_established = 1800
net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_last_ack = 10
net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 5
net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 5
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 10
net.netfilter.nf_conntrack_udp_timeout = 10
net.netfilter.nf_conntrack_udp_timeout_stream = 60
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_keepalive_intvl = 10
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_fin_timeout = 10

su5685

net.netfilter.nf_conntrack_icmp_timeout = 10
net.netfilter.nf_conntrack_icmpv6_timeout = 10
net.netfilter.nf_conntrack_tcp_timeout_close = 5
net.netfilter.nf_conntrack_tcp_timeout_close_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_established = 1800
net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 10
net.netfilter.nf_conntrack_tcp_timeout_last_ack = 10
net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 5
net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 5
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 10
net.netfilter.nf_conntrack_udp_timeout = 10
net.netfilter.nf_conntrack_udp_timeout_stream = 60
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_keepalive_intvl = 10
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_fin_timeout = 10