Fail2ban扫描日志文件（例如 /var/log/apache/error_log）并禁止造成太多密码失败的IP地址，寻找漏洞等。一般来说，Fail2Ban用于更新防火墙规则，在一定时间内拒绝IP地址。但是也可以配置任何任意其他动作（例如发送电子邮件）。 开箱即用的 Fail2Ban 自带各种服务（apache，courier，ssh等）的过滤器。
Fail2Ban
Fail2Ban扫描日志文件，并禁用造成太多密码失败的IP地址。 它更新防火墙规则以拒绝IP地址。 这些规则可以由用户定义。 (Fail2Ban scans log files and bans IP addresses that make too many password failures. It updates firewall rules to reject the IP address. These rules can be defined by the user.
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Fail2Ban能够减少不正确的身份验证尝试的速率，但它不能消除弱身份验证的风险。 如果您真的想要保护服务，请将服务配置为仅使用双因素或公共/私有身份验证机制。
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名称与所有者 fail2ban/fail2ban 主编程语言 Python 编程语言 Python (语言数: 3) 平台 许可证 Other - 所有者活动
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创建于 2011-09-28 16:24:20 推送于 2025-04-23 22:13:06 最后一次提交 2025-04-24 00:12:26 发布数 229 最新版本名称 1.1.0 (发布于 2024-04-25 23:26:46) 第一版名称 0_1_0 (发布于 ) - 用户参与
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/ _, __ _(_), _ ), __ __ _ _ _, _/ _`, / /, '_ \/ _`, ' \, _, \__,_, _, _/___, _.__/\__,_, _, _, v1.0.1.dev1 20??/??/??
Fail2Ban: ban hosts that cause multiple authentication errors
Fail2Ban scans log files like /var/log/auth.log and bans IP addresses conducting
too many failed login attempts. It does this by updating system firewall rules
to reject new connections from those IP addresses, for a configurable amount
of time. Fail2Ban comes out-of-the-box ready to read many standard log files,
such as those for sshd and Apache, and is easily configured to read any log
file of your choosing, for any error you wish.
Though Fail2Ban is able to reduce the rate of incorrect authentication
attempts, it cannot eliminate the risk presented by weak authentication.
Set up services to use only two factor, or public/private authentication
mechanisms if you really want to protect services.
, Since v0.10 fail2ban supports the matching of IPv6 addresses.
------, ------
This README is a quick introduction to Fail2Ban. More documentation, FAQ, and HOWTOs
to be found on fail2ban(1) manpage, Wiki,
Developers documentation
and the website: https://www.fail2ban.org
Installation:
It is possible that Fail2Ban is already packaged for your distribution. In
this case, you should use that instead.
Required:
Optional:
- pyinotify >= 0.8.3, may require:
- Linux >= 2.6.13
- gamin >= 0.0.21
- systemd >= 204 and python bindings:
- dnspython
To install:
tar xvfj fail2ban-1.0.1.tar.bz2
cd fail2ban-1.0.1
sudo python setup.py install
Alternatively, you can clone the source from GitHub to a directory of Your choice, and do the install from there. Pick the correct branch, for example, master or 0.11
git clone https://github.com/fail2ban/fail2ban.git
cd fail2ban
sudo python setup.py install
This will install Fail2Ban into the python library directory. The executable
scripts are placed into /usr/bin, and configuration in /etc/fail2ban.
Fail2Ban should be correctly installed now. Just type:
fail2ban-client -h
to see if everything is alright. You should always use fail2ban-client and
never call fail2ban-server directly.
You can verify that you have the correct version installed with
fail2ban-client version
Please note that the system init/service script is not automatically installed.
To enable fail2ban as an automatic service, simply copy the script for your
distro from the files directory to /etc/init.d. Example (on a Debian-based
system):
cp files/debian-initd /etc/init.d/fail2ban
update-rc.d fail2ban defaults
service fail2ban start
Configuration:
You can configure Fail2Ban using the files in /etc/fail2ban. It is possible to
configure the server using commands sent to it by fail2ban-client. The
available commands are described in the fail2ban-client(1) manpage. Also see
fail2ban(1) and jail.conf(5) manpages for further references.
Code status:
-
travis-ci.org:
/ 
(0.11 branch) / 
(0.10 branch) -
coveralls.io:
/ 
(0.11 branch) / 
/ (0.10 branch) -
codecov.io:
/ 
(0.11 branch) / 
(0.10 branch)
Contact:
Bugs, feature requests, discussions?
See CONTRIBUTING.md
You just appreciate this program:
Send kudos to the original author (Cyril Jaquier)
or better to the mailing list
since Fail2Ban is "community-driven" for years now.
Thanks:
See THANKS file.
License:
Fail2Ban is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
Fail2Ban is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
Fail2Ban; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110, USA