e9c1b5d6fa
* tag '0.10.2': (623 commits) prepare release: bump version, update ChangeLog, man's and MANIFEST etc. ChangeLog update action.d/pf.conf: compatibility fix - recognizes that parameter `port` specified as empty, with or without braces (should be more backwards compatible to 0.9 now). regex rewritten: a bit fewer vulnerable now and using non-capturing groups, test-cases extended in order to cover trying of injection on user name nginx-http-auth: match usernames with spaces regex updated using non-capturing groups extended test-cases to cover new log-format (http_auth -> mod_auth) Update lighttpd-auth.conf file-filter's: provide stop function in order to explicitly delete/stop monitoring of each file. Remove annoying error-message "rm_watch: cannot remove WD=2, Errno=Invalid argument (EINVAL)", logged from pyinotify-module if rm_watch called with non-existing watch file descriptor (probably multi-threaded issue by dual-remove). Closes gh-1865 should fix sporadic coverage decrease (don't cover "return", because too sporadic to get idle in pyinotify-callback); fixed restoring sane environment (via stop/start) if invariant check failed: bypass possible errors in stop (if start/check succeeded hereafter); test cases extended to cover such situation. Closes gh-1997 action.d/hostsdeny.conf: actionunban rewritten using sed, also dots in IP were escaped now. micro-fix: delete temporary file (forgotten in test-case `test_move_dir` by reassign to directory) Update ChangeLog stop ban of legitimate users with multiple public keys (e. g. git, etc), thereby differentiate between "invalid user" (going banned earlier) and valid users with public keys, for which the rejects of not valid public keys (failures) will be retarded up to "Too many authentication failures" resp. disconnect without success (accepted public key). filter.d/sendmail-auth.conf - extended daemon for Fedora 24/RHEL - the daemon name is "sendmail" (gh-1632) test cases extended in order to cover `firewallcmd-ipset` with `allports` Update ChangeLog firewallcmd-ipset-allports: implemented in `action.d/firewallcmd-ipset.conf` now (`action.d/firewallcmd-ipset-allports.conf` removed), usage: ... |
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.github | ||
bin | ||
config | ||
debian | ||
doc | ||
fail2ban | ||
files | ||
man | ||
.coveragerc | ||
.gitignore | ||
.mailmap | ||
.project | ||
.pylintrc | ||
.travis.yml | ||
CONTRIBUTING.md | ||
COPYING | ||
ChangeLog | ||
DEVELOP | ||
FILTERS | ||
MANIFEST | ||
MANIFEST.in | ||
README.Solaris | ||
README.md | ||
RELEASE | ||
THANKS | ||
TODO | ||
Vagrantfile | ||
fail2ban-2to3 | ||
fail2ban-testcases-all | ||
fail2ban-testcases-all-python3 | ||
kill-server | ||
setup.cfg | ||
setup.py |
README.md
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v0.10.2 2018/01/18
Fail2Ban: ban hosts that cause multiple authentication errors
Fail2Ban scans log files like /var/log/auth.log
and bans IP addresses having
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 easy to configure to read any log
file you choose, for any error you choose.
Though Fail2Ban is able to reduce the rate of incorrect authentications attempts, it cannot eliminate the risk that weak authentication presents. Configure 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 the IPv6 addresses. |
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This README is a quick introduction to Fail2ban. More documentation, FAQ, HOWTOs are available in fail2ban(1) manpage, Wiki and on the website http://www.fail2ban.org
Installation:
It is possible that Fail2ban is already packaged for your distribution. In this case, you should use it instead.
Required:
Optional:
- pyinotify >= 0.8.3
- Linux >= 2.6.13
- gamin >= 0.0.21
- systemd >= 204
- dnspython
To install, just do:
tar xvfj fail2ban-0.10.2.tar.bz2
cd fail2ban-0.10.2
python setup.py install
This will install Fail2Ban into the python library directory. The executable
scripts are placed into /usr/bin
, and configuration under /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.
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:
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