Title: WP fail2ban Blocklist
Author: invisnet
Published: <strong>fevriye 27, 2022</strong>
Last modified: Me 1, 2025

---

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# WP fail2ban Blocklist

 By [invisnet](https://profiles.wordpress.org/invisnet/)

[Download](https://downloads.wordpress.org/plugin/wpf2b-addon-blocklist.2.2.2.zip)

 * [Details](https://hat.wordpress.org/plugins/wpf2b-addon-blocklist/#description)
 * [Reviews](https://hat.wordpress.org/plugins/wpf2b-addon-blocklist/#reviews)
 *  [Installation](https://hat.wordpress.org/plugins/wpf2b-addon-blocklist/#installation)
 * [Development](https://hat.wordpress.org/plugins/wpf2b-addon-blocklist/#developers)

 [Support](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/)

## Description

There are many plugins that use a database to check for malicious IPs **after** 
they connect, and of course `fail2ban` stops _repeated_ attacks, but what if bad
IPs could be blocked **before** they attack?

By working collaboratively – sharing attack data – _WP fail2ban Blocklist_ does 
exactly that.

The Blocklist Network Service (BNS) collects attack data from participating sites,
performs some analytical magic, and sends back a list of IPs that are attacking 
sites now but haven’t yet attacked that site. In other words, each site periodically
gets a unique list of IPs to block **preemptively**.

#### GDPR

The BNS doesn’t collect personal data, and bots don’t have rights.

That said, the BNS only collects the minimum data required (time, IP, event), and
only for IPs that have behaved maliciously.

Of course, it is possible that some data is generated by _people_ behaving maliciously,
but the BNS has no way to differentiate – and nor should it: an attack is an attack.

#### Freemius

To work, the BNS **must** know:

 * which sites are running the blocklist add-on,
 * which version is in use,
 * and a shared secret for secure communication.

Freemius already provides all these, and _WP fail2ban_ already uses Freemius; why
reinvent the wheel?

Therefore, unlike the core _WP fail2ban_ plugin, you _must_ opt into Freemius for
the blocklist to work.

## Screenshots

 * [[
 * Dashboard widget

## Installation

 1. Ensure [_WP fail2ban_](https://wordpress.org/plugins/wp-fail2ban/) is installed.**
    N.B.** Requires version **4.4.0** or later.
 2. Install via the Plugin Directory, or upload to your plugins directory.
 3. Activate the plugin through the ‘Plugins’ menu in WordPress.
 4. Opt into Freemius; the Blocklist will not work without without this.
 5. The Blocklist Network Service (BNS) uses the WordPress REST API to communicate.
    If there is another security plugin installed be sure it allows access to the blocklist
    endpoint: `/wp-json/wp-fail2ban/v1/blocklist`
 6. **Important:** ensure you set `maxretry = 1` in your `wordpress‑hard` or `wpf2b‑
    blocklist‑hard` jail; the add-on will not work otherwise.

Details of the configuration steps can be found [here](https://docs.wp-fail2ban.com/projects/wp-fail2ban-blocklist/?utm_source=wordpress.org&utm_medium=readme&utm_campaign=wp-fail2ban-addon-blocklist-2.2.2).

## Reviews

![](https://secure.gravatar.com/avatar/6bcc2d95170fd3f3053f630eeefe0b6b6176237f9ed00ea5fa9fcd683068d0e3?
s=60&d=retro&r=g)

### 󠀁[Essential for any WP website](https://wordpress.org/support/topic/essential-for-any-wp-website/)󠁿

 [Attila Bogozi](https://profiles.wordpress.org/waaab/) Novanm 6, 2025

Setup is easy, usage is flawless. I recommend for everyone who is serious about 
WP security.

![](https://secure.gravatar.com/avatar/40202dae6497f7981139494e666627ad827be668871d2c305901e8381fcb517f?
s=60&d=retro&r=g)

### 󠀁[Prevenire e meglio che curare](https://wordpress.org/support/topic/prevenire-e-meglio-che-curare/)󠁿

 [Mac Boris Perc](https://profiles.wordpress.org/percboris/) Me 27, 2024

WP fail2ban Blocklist – Superb Wordpress plugin Prevention is better than cure.

 [ Read all 1 review ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/)

## Contributors & Developers

“WP fail2ban Blocklist” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ invisnet ](https://profiles.wordpress.org/invisnet/)

[Translate “WP fail2ban Blocklist” into your language.](https://translate.wordpress.org/projects/wp-plugins/wpf2b-addon-blocklist)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/wpf2b-addon-blocklist/),
check out the [SVN repository](https://plugins.svn.wordpress.org/wpf2b-addon-blocklist/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/wpf2b-addon-blocklist/)
by [RSS](https://plugins.trac.wordpress.org/log/wpf2b-addon-blocklist/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 2.2.2

 * Fix issue with parsing jails which use journald.
 * Fix harmless warning with PHP 8.3.
 * Fix documentation links in Site Health checks.

#### 2.2.1

 * Fix issue with opting into Freemius (h/t @Nyanchovy).
 * Fix Site Health passing test reported as failing (h/t @Patmos).
 * Improve debug code.

#### 2.2.0

 * Add [`WP_FAIL2BAN_ADDON_BLOCKLIST_DEBUG`](https://docs.wp-fail2ban.com/projects/wp-fail2ban-blocklist/en/2.2/defines/constants/WP_FAIL2BAN_ADDON_BLOCKLIST_DEBUG.html?utm_source=wordpress.org&utm_medium=readme&utm_campaign=wp-fail2ban-addon-blocklist-2.2.2).
 * Add [`WP_FAIL2BAN_ADDON_BLOCKLIST_DEBUG_TRY_ALL_KEYS`](https://docs.wp-fail2ban.com/projects/wp-fail2ban-blocklist/en/2.2/defines/constants/WP_FAIL2BAN_ADDON_BLOCKLIST_DEBUG_TRY_ALL_KEYS.html?utm_source=wordpress.org&utm_medium=readme&utm_campaign=wp-fail2ban-addon-blocklist-2.2.2).
 * Improve i18n.

#### 2.1.1

 * Fix harmless warning with PHP 8.1.
 * Compatibility changes for upcoming `WPf2b` release.

#### 2.1.0

 * Add Site Health checks.
 * Fix REST authentication issue (CORS headers) with some web servers.

#### 2.0.1

 * Fix harmless warning in dashboard widget; appears only before first polling.
 * Fix REST authentication when both free and premium installed.
 * Fix help links.

#### 2.0.0

 * **IPv6 support.** (Requires WP fail2ban 5.0 or later).
 * Change filter filenames to start with `wpf2b-` instead of `wordpress-`.
 * Add queue info to admin dashboard widget.

#### 1.1.2

 * Add mouseover hints to dashboard widget.
 * Improve secret key lookup.

#### 1.1.1

 * Fix bug with secret key lookup.

#### 1.1.0

 * Add event queue info to dashboard widget.
 * Increase maximum queue to 16384 events.
 * Fix bug handling too many events.

#### 1.0.2

 * Minor bug-fix.

#### 1.0.1

 * Minor bug-fix.

#### 1.0.0

 * First WordPress directory release.

## Meta

 *  Version **2.2.2**
 *  Last updated **11 months ago**
 *  Active installations **4,000+**
 *  WordPress version ** 4.9 or higher **
 *  Tested up to **6.8.5**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/wpf2b-addon-blocklist/)
 * Tags
 * [blocklist](https://hat.wordpress.org/plugins/tags/blocklist/)[fail2ban](https://hat.wordpress.org/plugins/tags/fail2ban/)
   [security](https://hat.wordpress.org/plugins/tags/security/)
 *  [Advanced View](https://hat.wordpress.org/plugins/wpf2b-addon-blocklist/advanced/)

## Ratings

 5 out of 5 stars.

 *  [  2 5-star reviews     ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/?filter=1)

[Add my review](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/reviews/)

## Contributors

 *   [ invisnet ](https://profiles.wordpress.org/invisnet/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/wpf2b-addon-blocklist/)