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<body><span class="vcard"><a class="email" href="mailto:fw@strlen.de" title="Florian Westphal <fw@strlen.de>"> <span class="fn">Florian Westphal</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue with REJECT in custom chains"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1298">bug 1298</a>
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<td>fw@strlen.de
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue with REJECT in custom chains"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1298#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue with REJECT in custom chains"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1298">bug 1298</a>
from <span class="vcard"><a class="email" href="mailto:fw@strlen.de" title="Florian Westphal <fw@strlen.de>"> <span class="fn">Florian Westphal</span></a>
</span></b>
<pre>(In reply to Arturo Borrero Gonzalez from <a href="show_bug.cgi?id=1298#c0">comment #0</a>)
<span class="quote">> Original bug report: <a href="https://bugs.debian.org/913877">https://bugs.debian.org/913877</a>
>
> === 8< ===
>
> Since upgrading iptables to the 1.8.2 version it has been completely
> unable to do that vital task due to problems within nftables / iptables.
>
> The example that I am facing right now is with active and large DoS
> attacks email spam attacks. When fail2ban attempts to add the firewall
> blocks, such as;
>
> iptables -w -I f2b-postfix-sasl 1 -s 80.82.70.189 \
> -j REJECT --reject-with icmp-port-unreachable</span >
Works fine for me.
Upstream report claims this doesn't work:
iptables -N test-foo
iptables -I test-foo 1 -s 127.0.0.1 -j REJECT
It works fine for me on Fedrora 29, using 4.18 based kernel with iptables-nft
1.8.2 on x86_64</pre>
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