ansible/roles/nftables_infra/templates/nftables.d/40-input.conf.j2
Jeltz 4d85cd7e4b
All checks were successful
continuous-integration/drone/push Build is passing
continuous-integration/drone/pr Build is passing
Fix some nftables issues
2022-01-13 13:59:49 +01:00

70 lines
1.2 KiB
Django/Jinja

{{ ansible_managed | comment }}
table inet input {
chain conntrack {
ct state vmap {
established: accept,
related: accept,
invalid: drop,
}
}
chain input_from_server {
jump conntrack
ip6 saddr $prom_infra_ipv6 tcp dport 9100 accept
ip saddr $prom_infra_ipv4 tcp dport 9100 accept
}
chain input_from_backbone {
ip6 nexthdr { ospf, vrrp } accept
ip protocol { ospf, vrrp } accept
counter accept # FIXME: temporary
}
chain input_from_router {
jump conntrack
tcp dport ssh counter accept
}
chain input_from_bastion {
jump conntrack
tcp dport ssh counter accept
}
chain input_from_anywhere {
jump conntrack
# FIXME: limit
ip6 nexthdr icmpv6 counter accept
ip protocol icmp counter accept
}
chain input {
type filter hook input priority filter
policy drop
iif lo accept
jump input_from_anywhere
# FIXME: temporary
tcp dport ssh accept
ip6 saddr vmap {
$backbone_ipv6: jump input_from_backbone,
$router_ipv6: jump input_from_router,
}
ip saddr vmap {
$backbone_ipv4: jump input_from_backbone,
$router_ipv4: jump input_from_router,
}
reject with icmpx type admin-prohibited
}
}