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add fail2ban snippet to FAQ

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from unguamorray in issue #274
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Mechiel Lukkien
2025-01-29 20:58:31 +01:00
parent df17ae2321
commit ec7904c0ee
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README.md
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@ -533,3 +533,13 @@ ensuring they don't become too large. The message index database file for an
account is at `data/accounts/<account>/index.db`, accessed with the bstore
database library, which uses bbolt (formerly BoltDB) for storage, a
transactional key/value library/file format inspired by LMDB.
## How do I block IPs with authentication failures with fail2ban?
Mox includes a rate limiter for IPs/networks that cause too many authentication
failures. It automatically unblocks such IPs/networks after a while. So you may
not need fail2ban. If you want to use fail2ban, you could use this snippet:
[Definition]
failregex = .*failed authentication attempt.*remote=<HOST>
ignoreregex =