Fail2ban can be downloaded directly from SourceForge.net sites.
|Sources||The official releases are available here.|
|Snapshots||Nightly snapshots are available here.|
|Gentoo||Template:Fail2Ban is in Portage. Ebuilds are also available here.|
|Debian||Packages are available here. Thanks to Yaroslav Halchenko|
|RedHat||RPMs are available here. Thanks to Jonathan Kamens|
|Ipcop||Addon is available here. Thanks to Markus Hoffmann|