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TranslateProject/translated/tech/20151204 How to Remove Banned IP from Fail2ban on CentOS 6 or CentOS 7.md
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如何在CentOS 6/7 上移除被Fail2ban禁止的IP

Fail2ban是一款用于保护你的服务器免于暴力攻击的入侵保护软件。Fail2ban用python写成，并被广泛用户大多数服务器上。Fail2ban将扫描日志文件和IP黑名单来显示恶意软件、过多的密码失败、web服务器利用、Wordpress插件攻击和其他漏洞。如果你已经安装并使用了fail2ban来保护你的web服务器，你也许会想知道如何在CentOS 6、CentOS 7、RHEL 6、RHEL 7 和 Oracle Linux 6/7中找到被Fail2ban阻止的IP，或者你想将ip从fail2ban监狱中移除。

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

我希望这篇教程可以给你在CentOS 6、CentOS 7、RHEL 6、RHEL 7 和 Oracle Linux 6/7中移除被禁止的ip一些指导。

via: http://www.ehowstuff.com/how-to-remove-banned-ip-from-fail2ban-on-centos/

作者：skytech 译者：译者ID 校对：校对者ID

本文由 LCTT 原创编译，Linux中国 荣誉推出