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[nftables] Add blackholes counters

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This commit is contained in:
Viyurz 2024-09-21 12:29:48 +02:00
parent e6fce28ee0
commit 9c7ad280f9
Signed by: Viyurz
SSH key fingerprint: SHA256:IskOHTmhHSJIvAt04N6aaxd5SZCVWW1Guf9tEcxIMj8
1 changed files with 4 additions and 4 deletions
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8
roles/nftables/templates/nftables.conf
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@ -41,15 +41,15 @@ table inet filter {
# Rate limiting
meta nfproto ipv4 meter ratelimit4 \
{ ip saddr limit rate over 75/second burst 15 packets } \
add @blackhole_ipv4 { ip saddr }
add @blackhole_ipv4 { ip saddr } counter
meta nfproto ipv6 meter ratelimit6 \
{ ip6 saddr limit rate over 75/second burst 15 packets } \
add @blackhole_ipv6 { ip6 saddr }
add @blackhole_ipv6 { ip6 saddr } counter
# Max concurrent connections
meta nfproto ipv4 meter connlimit4 \
{ ip saddr ct count over 100 } add @blackhole_ipv4 { ip saddr }
{ ip saddr ct count over 100 } add @blackhole_ipv4 { ip saddr } counter
meta nfproto ipv6 meter connlimit6 \
{ ip6 saddr ct count over 100 } add @blackhole_ipv6 { ip6 saddr }
{ ip6 saddr ct count over 100 } add @blackhole_ipv6 { ip6 saddr } counter
# Allow ICMP
meta l4proto icmp accept