分类: LINUX
2015-01-27 23:36:11
默认已经安装了防火墙
vi /etc/iptables.up.rules
然后再打开的文件里面添加自己的开放的端口
# Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT DROP [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :syn-flood - [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT -A INPUT -p icmp -m limit --limit 100/sec --limit-burst 100 -j ACCEPT -A INPUT -p icmp -m limit --limit 1/s --limit-burst 10 -j ACCEPT -A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn-flood -A INPUT -j REJECT --reject-with icmp-host-prohibited -A syn-flood -p tcp -m limit --limit 3/sec --limit-burst 6 -j RETURN -A syn-flood -j REJECT --reject-with icmp-port-unreachable COMMIT
然后保存退出
最后输入下面命令,让防火墙配置文件生效
iptables-restore < /etc/iptables.up.rules 技术文章出自