https://blog.099c.org/tags/reaction/ Recent content in Reaction on Apuntes de root Hugo en-US jorti@pm.me (Juan Orti Alcaine) jorti@pm.me (Juan Orti Alcaine) Fri, 06 Mar 2026 09:14:09 +0100 https://blog.099c.org/posts/bulwark-block-attacking-ips-at-router-level/ Fri, 06 Mar 2026 09:14:09 +0100jorti@pm.me (Juan Orti Alcaine) https://blog.099c.org/posts/bulwark-block-attacking-ips-at-router-level/ <p>Inspired on Crowdsec firewall bouncer, and also with the intention of learning some Rust, I&rsquo;ve created <a href="https://codeberg.org/jorti/bulwark">Bulwark</a>, a small program to run in a OpenWrt router (or any Linux machine) to ban IPs of attacks detected by my servers.</p> https://blog.099c.org/posts/from-fail2ban-to-reaction/ Tue, 03 Mar 2026 16:35:37 +0100jorti@pm.me (Juan Orti Alcaine) https://blog.099c.org/posts/from-fail2ban-to-reaction/ <p><a href="https://github.com/fail2ban/fail2ban">Fail2ban</a> has been an important security tool I&rsquo;ve been using in my servers for many years. However sometimes is difficult to configure, lacks certain features and can consume too many resources.</p> <p>Recently I&rsquo;ve switched to <a href="https://reaction.ppom.me/">Reaction</a>, a new tool with the same philosophy: monitor logs and execute some actions based on log matches. Reaction is written in Rust, so it&rsquo;s fast and resource efficient.</p>