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Role ipt-server: configurable rate for the new-TCP-connection limit; new defaults.

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- Sync ipt-firewall-server, ip6t-firewall-server and default_settings.conf
  with firewall/ipt-server affa35d: new limit_new_tcp_connections_per_seconds_rate
  (default 30, burst twice the rate); the rule now only drops SYNs above the
  limit instead of accepting those below it; several IPv6 fixes.
- defaults: fw_limit_new_tcp_connections_per_seconds_per_source_IP: false,
  fw_limit_new_tcp_connections_per_seconds_ports: "80,110,143,443,465,995",
  new fw_limit_new_tcp_connections_per_seconds_rate (overridable with _v6).
- templates, extract-fw-host-vars.py, README: new variable and defaults.
- oolm-shop: drop fw_limit_new_tcp_connections_per_seconds_per_source_IP_v6
  (it would have enabled the limit for IPv6 with the new default ports).
- piwik: fw_manage_config: true, per_IP_connection_limit 501, no
  new-connection limit.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
chris
2026-11-11 18:51:16 +01:00
co-authored by Claude Opus 5.5
parent 534ad28be9
commit 02990faf70
10 changed files with 116 additions and 51 deletions
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roles/ipt-server/templates/etc/ipt-firewall/main_ipv4.conf.j2
+1
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@@ -347,6 +347,7 @@ per_IP_connection_limit={{ fw_per_IP_connection_limit }}
limit_new_tcp_connections_per_seconds_per_source_IP={{ fw_limit_new_tcp_connections_per_seconds_per_source_IP | lower }}
limit_new_tcp_connections_per_seconds_ports="{{ fw_limit_new_tcp_connections_per_seconds_ports }}"
limit_new_tcp_connections_per_seconds_rate="{{ fw_limit_new_tcp_connections_per_seconds_rate }}"
# -------------