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add counter to connection limit reject rules

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This commit is contained in:
Daniel Micay 2024-03-28 23:28:34 -04:00
parent b40988122c
commit 39b7e1f479
9 changed files with 44 additions and 44 deletions
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8
nftables-attestation.conf
View File

@ -54,14 +54,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

8
nftables-discuss.conf
View File

@ -57,14 +57,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

8
nftables-mail.conf
View File

@ -54,14 +54,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

8
nftables-matrix.conf
View File

@ -54,14 +54,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

8
nftables-network.conf
View File

@ -59,14 +59,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

16
nftables-ns1.conf
View File

@ -67,19 +67,19 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
tcp dport { 53, 853 } ip saddr @ip-connlimit-dns reject with tcp reset
tcp dport { 53, 853 } ip6 saddr and ffff:ffff:ffff:ffff:: @ip6-connlimit-dns reject with tcp reset
tcp dport { 53, 853 } ip saddr @ip-connlimit-dns counter reject with tcp reset
tcp dport { 53, 853 } ip6 saddr and ffff:ffff:ffff:ffff:: @ip6-connlimit-dns counter reject with tcp reset
tcp dport { 53, 853 } synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip-connlimit-dns { ip saddr ct count over 16 } reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip6-connlimit-dns { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip-connlimit-dns { ip saddr ct count over 16 } counter reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip6-connlimit-dns { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } counter reject with tcp reset
accept
}

16
nftables-ns2.conf
View File

@ -72,19 +72,19 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
tcp dport { 53, 853 } ip saddr @ip-connlimit-dns reject with tcp reset
tcp dport { 53, 853 } ip6 saddr and ffff:ffff:ffff:ffff:: @ip6-connlimit-dns reject with tcp reset
tcp dport { 53, 853 } ip saddr @ip-connlimit-dns counter reject with tcp reset
tcp dport { 53, 853 } ip6 saddr and ffff:ffff:ffff:ffff:: @ip6-connlimit-dns counter reject with tcp reset
tcp dport { 53, 853 } synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip-connlimit-dns { ip saddr ct count over 16 } reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip6-connlimit-dns { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip-connlimit-dns { ip saddr ct count over 16 } counter reject with tcp reset
tcp dport { 53, 853 } tcp flags syn add @ip6-connlimit-dns { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } counter reject with tcp reset
accept
}

8
nftables-social.conf
View File

@ -54,14 +54,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}

8
nftables-web.conf
View File

@ -58,14 +58,14 @@ table inet filter {
meta l4proto { icmp, ipv6-icmp } accept
ct state vmap { established : accept, related : accept, new : goto graceful-reject }
tcp dport 22 ip saddr @ip-connlimit-ssh reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh reject with tcp reset
tcp dport 22 ip saddr @ip-connlimit-ssh counter reject with tcp reset
tcp dport 22 ip6 saddr and ffff:ffff:ffff:ffff:ffff:: @ip6-connlimit-ssh counter reject with tcp reset
tcp dport 22 synproxy mss 1460 wscale 7 timestamp sack-perm
}
chain input-loopback {
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } reject with tcp reset
tcp dport 22 tcp flags syn ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 tcp flags syn ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
accept
}