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61 lines
3.4 KiB
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61 lines
3.4 KiB
Markdown
如何在 CentOS 6/7 上移除被 Fail2ban 禁止的 IP
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[fail2ban][1] 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，并广泛用于很多服务器上。fail2ban 会扫描日志文件和 IP 黑名单来显示恶意软件、过多的密码失败尝试、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。
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### 如何列出被禁止的 IP ###
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要查看所有被禁止的 ip 地址，运行下面的命令：
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# iptables -L
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Chain INPUT (policy ACCEPT)
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target prot opt source destination
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f2b-AccessForbidden tcp -- anywhere anywhere tcp dpt:http
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f2b-WPLogin tcp -- anywhere anywhere tcp dpt:http
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f2b-ConnLimit tcp -- anywhere anywhere tcp dpt:http
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f2b-ReqLimit tcp -- anywhere anywhere tcp dpt:http
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f2b-NoAuthFailures tcp -- anywhere anywhere tcp dpt:http
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f2b-SSH tcp -- anywhere anywhere tcp dpt:ssh
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f2b-php-url-open tcp -- anywhere anywhere tcp dpt:http
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f2b-nginx-http-auth tcp -- anywhere anywhere multiport dports http,https
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ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
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ACCEPT icmp -- anywhere anywhere
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ACCEPT all -- anywhere anywhere
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ACCEPT tcp -- anywhere anywhere tcp dpt:EtherNet/IP-1
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ACCEPT tcp -- anywhere anywhere tcp dpt:http
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REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
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Chain FORWARD (policy ACCEPT)
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target prot opt source destination
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REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
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Chain OUTPUT (policy ACCEPT)
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target prot opt source destination
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Chain f2b-NoAuthFailures (1 references)
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target prot opt source destination
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REJECT all -- 64.68.50.128 anywhere reject-with icmp-port-unreachable
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REJECT all -- 104.194.26.205 anywhere reject-with icmp-port-unreachable
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RETURN all -- anywhere anywhere
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### 如何从 Fail2ban 中移除 IP ###
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# iptables -D f2b-NoAuthFailures -s banned_ip -j REJECT
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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。
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--------------------------------------------------------------------------------
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via: http://www.ehowstuff.com/how-to-remove-banned-ip-from-fail2ban-on-centos/
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作者：[skytech][a]
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译者：[geekpi](https://github.com/geekpi)
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校对：[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:http://www.ehowstuff.com/author/skytech/
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[1]:http://www.fail2ban.org/wiki/index.php/Main_Page
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