CentOS系统如何把IP从Fail2ban黑名单中移除

CentOS系统如何把IP从Fail2ban黑名单中移除

　　Linux系统中Fail2ban是一款保护服务器免受网络攻击的工具，Fail2ban可以通过黑名单来禁止IP访问。既然有被禁止的IP，那么问题来了，CentOS系统如何把IP从Fail2ban黑名单中移除呢?针对这个问题，下面学习啦小编就为大家介绍一下具体的方法吧，欢迎大家参考和学习。

　　具体的移除方法如下：

　　如何列出被禁止的 IP要查看所有被禁止的 ip 地址，运行下面的命令：

　　# iptables -L

　　Chain INPUT (policy ACCEPT)

　　target prot opt source destination

　　f2b-AccessForbidden tcp -- anywhere anywhere tcp dpt:http

　　f2b-WPLogin tcp -- anywhere anywhere tcp dpt:http

　　f2b-ConnLimit tcp -- anywhere anywhere tcp dpt:http

　　f2b-ReqLimit tcp -- anywhere anywhere tcp dpt:http

　　f2b-NoAuthFailures tcp -- anywhere anywhere tcp dpt:http

　　f2b-SSH tcp -- anywhere anywhere tcp dpt:ssh

　　f2b-php-url-open tcp -- anywhere anywhere tcp dpt:http

　　f2b-nginx-http-auth tcp -- anywhere anywhere multiport dports http，https

　　ACCEPT all -- anywhere anywhere state RELATED，ESTABLISHED

　　ACCEPT icmp -- anywhere anywhere

　　ACCEPT all -- anywhere anywhere

　　ACCEPT tcp -- anywhere anywhere tcp dpt:EtherNet/IP-1

　　ACCEPT tcp -- anywhere anywhere tcp dpt:http

　　REJECT all -- anywhere anywhere reject-with icmp-host-prohibited

　　Chain FORWARD (policy ACCEPT)

　　target prot opt source destination

　　REJECT all -- anywhere anywhere reject-with icmp-host-prohibited

　　Chain OUTPUT (policy ACCEPT)

　　target prot opt source destination

　　Chain f2b-NoAuthFailures (1 references)

　　target prot opt source destination

　　REJECT all -- 64.68.50.128 anywhere reject-with icmp-port-unreachable

　　REJECT all -- 104.194.26.205 anywhere reject-with icmp-port-unreachable

　　RETURN all -- anywhere anywhere

　　如何从 Fail2ban 中移除 IP

　　# iptables -D f2b-NoAuthFailures -s banned_ip -j REJECT

　　以上就是CentOS系统把IP从Fail2ban黑名单中移除的方法了，把IP地址从Fail2ban黑名单中移除了以后，也就解除了该IP对服务器访问的限制。