linux中error: permission denied on key ‘net.bridge.bridge-nf-

系统参数：

[root@hk tmp]# uname -mx86_64[root@hk tmp]# cat /etc/redhat-release CentOS release 6.6 (Final)

优化参数：

[root@hk /]# tail -20 /etc/sysctl.conf net.ipv4.tcp_fin_timeout = 2net.ipv4.tcp_tw_reuse = 1net.ipv4.tcp_tw_recycle = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_keepalive_time =600net.ipv4.ip_local_port_range = 4000 65000net.ipv4.tcp_max_syn_backlog = 16384net.ipv4.tcp_max_tw_buckets = 36000net.ipv4.route.gc_timeout = 100net.ipv4.tcp_syn_retries = 1net.ipv4.tcp_synack_retries = 1net.core.somaxconn = 16384net.core.netdev_max_backlog = 16384net.ipv4.tcp_max_orphans = 16384net.ipv4.ip_conntrack_max = 25000000net.ipv4.netfilter.ip_conntrack_max = 25000000net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 180net.ipv4.netfilter.ip_conntrack_tcp_timeout_time_wait = 120net.ipv4.netfilter.ip_conntrack_tcp_timeout_close_wait = 60net.ipv4.netfilter.ip_conntrack_tcp_timeout_fin_wait = 120[root@hk /]# sysctl -p net.ipv4.ip_forward = 0net.ipv4.tcp_syncookies = 1error: permission denied on key ´net.bridge.bridge-nf-call-ip6tables´error: permission denied on key ´net.bridge.bridge-nf-call-iptables´error: permission denied on key ´net.bridge.bridge-nf-call-arptables´error: permission denied on key ´net.ipv4.tcp_fin_timeout´error: permission denied on key ´net.ipv4.tcp_tw_reuse´error: permission denied on key ´net.ipv4.tcp_tw_recycle´net.ipv4.tcp_syncookies = 1error: permission denied on key ´net.ipv4.tcp_keepalive_time´error: permission denied on key ´net.ipv4.ip_local_port_range´error: permission denied on key ´net.ipv4.tcp_max_syn_backlog´error: permission denied on key ´net.ipv4.tcp_max_tw_buckets´error: permission denied on key ´net.ipv4.route.gc_timeout´error: permission denied on key ´net.ipv4.tcp_syn_retries´error: permission denied on key ´net.ipv4.tcp_synack_retries´net.core.somaxconn = 16384error: permission denied on key ´net.core.netdev_max_backlog´error: permission denied on key ´net.ipv4.tcp_max_orphans´error: "net.ipv4.ip_conntrack_max" is an unknown keyerror: "net.ipv4.netfilter.ip_conntrack_max" is an unknown keyerror: "net.ipv4.netfilter.ip_conntrack_tcp_timeout_established" is an unknown keyerror: "net.ipv4.netfilter.ip_conntrack_tcp_timeout_time_wait" is an unknown keyerror: "net.ipv4.netfilter.ip_conntrack_tcp_timeout_close_wait" is an unknown keyerror: "net.ipv4.netfilter.ip_conntrack_tcp_timeout_fin_wait" is an unknown key

解决方法：咋就这样呢，很明显不对好嘛！！！

[root@hk /]# tail -2 /etc/rc.local modprobe nf_conntrackmodprobe bridge[root@hk /]# mv /sbin/modprobe /tmp/[root@hk /]# mv /sbin/sysctl /tmp/[root@hk /]# ln -s /bin/true /sbin/modprobe [root@hk /]# ln -s /bin/true /sbin/sysctl