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This means that services will only open their ports if they are actually run, without having to clutter rules.v4 with a log of `if` statements. This does not go as far as using `puppetlabs/firewall`[1] because that would represent an additional DSL to learn; raw IPtables sections can easily be inserted into the generated iptables file via `concat::fragment` (either inline, or as a separate file), but config can be centralized next to the appropriate service. [1] https://forge.puppet.com/modules/puppetlabs/firewall
10 lines
368 B
Plaintext
10 lines
368 B
Plaintext
# Accept incoming traffic on UDP port 2104 (zhm)
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-A INPUT -p udp --dport 2104 -j ACCEPT
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# It's hard to know what ephemeral ports the zephyr clients are listening on.
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# Apparently they do not send outgoing traffic sufficient for the
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# ESTABLISHED,RELATED rule above. So for now we allow all UDP traffic.
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#
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# FIXME: do something better here.
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-A INPUT -p udp -j ACCEPT
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