How to Install and Uninstall fail2ban Package on Ubuntu 20.10 (Groovy Gorilla)

Last updated: May 14,2024

1. Install "fail2ban" package

Please follow the guidelines below to install fail2ban on Ubuntu 20.10 (Groovy Gorilla)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                fail2ban
            
                    
    
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2. Uninstall "fail2ban" package

Learn how to uninstall fail2ban on Ubuntu 20.10 (Groovy Gorilla):


    
        
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                sudo apt remove
            
                        
                fail2ban
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the fail2ban package on Ubuntu 20.10 (Groovy Gorilla)

Package: fail2ban
Architecture: all
Version: 0.11.1-2
Priority: optional
Section: universe/net
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Debian Python Modules Team
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 1965
Depends: python3:any, lsb-base (>= 2.0-7)
Recommends: nftables | iptables, whois, python3-pyinotify, python3-systemd
Suggests: mailx, system-log-daemon, monit, sqlite3
Filename: pool/universe/f/fail2ban/fail2ban_0.11.1-2_all.deb
Size: 374788
MD5sum: f1c795f478b1deb107a846a693e74846
SHA1: 22a3162c7cad5cd6844522a9328d4c9ababedbf9
SHA256: 9183defd12c02005ce7db5ce2830dfa1e6d1160d639bcdbdbbfb99ddcaab8070
SHA512: 7ca316453176daf2aa9912a2f28c5a0913b103f1bd602144b37c3f4607b929784dc31f6c35c3bb9429b9fdece6695af9628e45348f4161fc894ea7d94854bd44
Homepage: http://www.fail2ban.org
Description-en: ban hosts that cause multiple authentication errors
Fail2ban monitors log files (e.g. /var/log/auth.log,
/var/log/apache/access.log) and temporarily or persistently bans
failure-prone addresses by updating existing firewall rules. Fail2ban
allows easy specification of different actions to be taken such as to ban
an IP using iptables or hostsdeny rules, or simply to send a notification
email.
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By default, it comes with filter expressions for various services
(sshd, apache, proftpd, sasl, etc.) but configuration can be
easily extended for monitoring any other text file. All filters and
actions are given in the config files, thus fail2ban can be adopted
to be used with a variety of files and firewalls. Following recommends
are listed:
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- iptables/nftables -- default installation uses iptables for banning.
nftables is also supported. You most probably need it
- whois -- used by a number of *mail-whois* actions to send notification
emails with whois information about attacker hosts. Unless you will use
those you don't need whois
- python3-pyinotify -- unless you monitor services logs via systemd, you
need pyinotify for efficient monitoring for log files changes
Description-md5: 2aaeac0c71609eb6bfd4102c0adc7275