iptables配置记录

一个小时内同一IP请求连接次数超过5次，封IP 1个小时。
同时，限制发起请求的IP段

# cat /etc/sysconfig/iptables # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT #-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -N Recent_Block -A Recent_Block -p tcp --dport 22 -m state --state NEW -m recent --name SSHPOOL --rcheck --seconds 3600 --hitcount 5 -j DROP -A Recent_Block -p tcp --dport 22 -m state --state NEW -m recent --name SSHPOOL --set -j ACCEPT -A INPUT -s 192.168.0.0/24 -p tcp --dport 22 -j Recent_Block -A INPUT -s 192.168.1.0/24 -p tcp --dport 22 -j Recent_Block -A INPUT -s 192.168.2.0/24 -p tcp --dport 22 -j Recent_Block -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT 

访问日志的路径是：
/proc/net/xt_recent/SSHPOOL