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The menace came from below - Hack.lu

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Details of Netfilter implementation<br />

ALGs in Netfilter<br />

ALGs are called Helpers.<br />

Each protocol is implemented as a kernel module.<br />

Loading options can be used to configure the helper.<br />

Fine-grained setup can be achieved with the CT iptables target.<br />

Éric Leblond, Victor Julien (OISF) <strong>The</strong> <strong>menace</strong> <strong>came</strong> <strong>from</strong> <strong>below</strong> <strong>Hack</strong>.<strong>lu</strong> 2012 11 / 66

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