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-A OUTPUT --destination ! '127.0.0.1' -m state --state NEW -j LOG --log-prefix "new_connection " --log-level 7

gives me

Bad argument `127.0.0.1'

What am I doing wrong? I used this docs : http://www.iptables.info/en/iptables-matches.html

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up vote 5 down vote accepted

The docs are out of date/misleading.

The ! should go before --destination, not after it. Try:

-A OUTPUT ! --destination 127.0.0.1 -m state --state NEW -j LOG --log-prefix "new_connection " --log-level 7

The clue is the summary line in the man page:

    [!] -d, --destination address[/mask][,...]
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