Am 14.04.2011 09:19, schrieb Jan Engelhardt:
> On Thursday 2011-04-14 09:13, Maciej Åenczykowski wrote:
>
>> Note that: -M '' is -M followed by a space and two single quotes.
>>
>> Furthermore, note that with -M '', you will want to modprobe ip_tables
>> or modprobe ip6_tables manually first at system startup (or build them
>> into the kernel), since those modules don't autoload (hence why
>> iptables tries to load them).
>>
>> I wonder if there's an easy way iptables userspace could detect
>> whether these modules are already loaded (or compiled into the
>> kernel), and not even try to load them, if so...
>
> Not with the socket interface, but it's on the plate for netlink-based
> Xtables.
We do have the /proc/net/ip_tables_{names,matches,targets} files
which should be usable for this.
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