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A jail's pattern names <HOST> once, and is refused by name when it does not (hq ADR 0179) #221

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mesh-admin merged 1 commits from fix/a-jails-pattern-names-the-host-once into main 2026-10-02 15:32:14 +00:00
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jschoubben 99c4c4ef04 A jail's pattern names <HOST> once, and is refused by name when it does not (hq ADR 0179) 
fail2ban expands <HOST> into a named capture group, so a pattern naming it twice is a duplicate
group name: the daemon refuses its whole configuration and exits, and the machine keeps no bans at
all — for every jail, not the one at fault. Hit live on the control node the day the jails shipped.
A jail with no name, no pattern, or a name another of the module's jails took is refused too.
 2026-10-02 17:25:34 +02:00