Witen Warden vs Fail2Ban
Fail2Ban runs the regex jails you write. Warden finds your log sources, shows its plan before it touches the firewall, tells you why it banned every address, and can block attackers the whole Witen network has already seen.
Published by Witen Labs. Reviewed . Witen Warden 0.1.46 and Fail2Ban's documented core features.
Where Witen pulls ahead
No regex to write
warden discover finds your SSH and web server logs and proposes a configuration you can read before applying. Rollback is one command.
Every ban explains itself
warden blocked shows each banned address, what it did, and which rule caught it. Repeat offenders get longer bans automatically.
Block attackers before they reach you
Connect an account and Warden blocks addresses already caught attacking other servers in the Witen network, not only the ones that hit you.
Side by side
Scroll the table sideways to see both products.
| What matters | Witen | Fail2Ban |
|---|---|---|
| Getting started Witen's edge | Discover log sources, review a proposed plan, apply it, or roll it back. | Write or adapt filters, jails, and actions in configuration files. jail.conf. |
| Why an address was banned Witen's edge | Each ban records what the address did and the rule that caught it; one command lifts a mistake. | Logs which jail banned an address; the matching lines live in your logs. |
| Shared intelligence Witen's edge | An optional account adds the Witen network's shared blocklist. | None built in. Reporting services can be wired in through actions, such as AbuseIPDB. |
| WordPress and Matomo Witen's edge | Witen's plugins report login failures and exploit attempts to Warden over a local socket. No filters to maintain. | Applications must log in a format a filter matches; WP fail2ban provides this for WordPress. |
| Safety rails Witen's edge | Bans requested by plugins never touch CDN edges, search crawlers, your gateway, your DNS resolvers, or addresses that recently logged in over SSH. | An ignoreip list you maintain. jail.conf. |
| Any log you can regex Fail2Ban's edge | Supported SSH and web server formats, plus Witen's plugins. | Any service whose logs a filter can match, with a large library of filters and actions. Project. |
| License Fail2Ban's edge | Free binary downloads of proprietary software under Witen's terms. | GPL version 2 or later. License. |
Read the plan before it runs
Warden inspects the log sources on the host and writes a plan with every value it would set and the evidence for it. Applying a plan keeps a backup, and rollback refuses to overwrite edits you made afterwards.
Start with the null firewall backend to watch what Warden would ban, then switch enforcement on.
Inspect and plan
warden validate --config /etc/witen/warden.toml
warden discover --config /etc/witen/warden.toml
warden config plan --discover --output /root/warden-review.json
warden config show /root/warden-review.jsonThese commands only inspect. Applying is a separate step in the Warden guide.
When Fail2Ban is the better pick
Your jails already work, you need GPL software, or you protect services whose logs only a custom regex can read. Fail2Ban is the flexible classic, and keeping a working setup is a fine choice.
Warden can run beside it in observation mode while you compare, so you don't have to switch blind.
Evaluate on one host first
Keep Fail2Ban running, start Warden with the null backend, and compare detections. Add your management addresses to never_block, keep a recovery path, then decide which tool owns each ban.
Warden blocks locally without an account. Enrollment shares security events to power the shared feed; see the privacy policy. No root access? Read Witen Blocker vs WP fail2ban. Wondering what Warden can touch on your server? See how Warden runs.
Try it next to what you run today
Start Warden with the null firewall backend to watch what it would ban, add your management addresses to never_block, then switch enforcement on. Local protection is free and needs no account.