firewall/zones/dmz.nft

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#! /sbin/nft -f
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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Copyright © 2018-2019 Hugo Levy-Falk <hugo@klafyvel.me>
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table inet firewall {
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set dns {
type ipv4_addr
flags interval
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elements = { 193.48.225.248, 193.48.225.204 }
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}
set www {
type ipv4_addr
flags interval
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elements = { 193.48.225.241, 193.48.225.242, 193.48.225.243, 193.48.225.247, 193.48.225.200, 193.48.225.3, 193.48.225.203, 193.48.225.208 }
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}
set irc {
type ipv4_addr
flags interval
elements = {193.48.225.244}
}
set znc {
type ipv4_addr
flags interval
elements = { 193.48.225.242 }
}
set smtp {
type ipv4_addr
flags interval
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elements = { 193.48.225.249, 193.48.225.245, 193.48.225.200 , 193.48.225.207}
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}
set letsencrypt {
type ipv4_addr
flags interval
elements = {193.48.225.246, 193.48.225.248, 193.48.225.249}
}
set federez {
type ipv4_addr
flags interval
elements = {193.48.225.201}
}
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set gitlab {
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type ipv4_addr
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flags interval
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elements = { 193.48.225.243 }
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}
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set video {
type ipv4_addr
flags interval
elements = { 193.48.225.240 }
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}
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set ldap {
type ipv4_addr
flags interval
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elements = { 193.48.225.246, 193.48.225.248 }
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}
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set ldap_clients {
type ipv4_addr
flags interval
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elements = { 10.7.0.0/24, 10.69.0.0/20, 185.230.78.37, 51.15.178.125, 193.48.225.0/24 }
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}
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set mysql {
type ipv4_addr
flags interval
elements = {10.7.0.243}
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}
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set minecraft {
type ipv4_addr
flags interval
elements = {193.48.225.202}
}
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set latoilescoute {
type ipv4_addr
flags interval
elements = {193.48.225.203}
}
set dns_rennais {
type ipv4_addr
flags interval
elements = {193.48.225.205}
}
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chain to_dmz {
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ip saddr 10.7.0.0/16 accept
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ip daddr @smtp tcp dport { 22, 25, 80, 443, 143, 993, 587} accept
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ip daddr @dns tcp dport { 22, 53 } accept
ip daddr @dns udp dport { 53 } accept
ip daddr @dns_rennais tcp dport { 22, 53 } accept
ip daddr @dns_rennais udp dport { 53 } accept
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ip daddr @www tcp dport { 21, 22, 80, 443, 3000 } accept
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ip daddr @federez tcp dport { 22, 53, 80, 443, 389 } accept
ip daddr @federez udp dport { 53, 636 } accept
ip daddr @znc tcp dport { 6667 } accept
ip daddr @letsencrypt tcp dport { 80, 443 } accept
ip daddr @irc tcp dport { 22, 6667, 6697, 6767, 7000, 9090 } accept
ip daddr @video tcp dport { 37700, 6754 } accept
ip daddr @video udp dport { 37800 } accept
ip daddr @video tcp dport { 5678 } accept
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ip saddr $monitoring udp dport { 161 } accept
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ip daddr @minecraft tcp dport { 22, 25565 } accept
ip daddr @minecraft udp dport { 22, 25565 } accept
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ip daddr @latoilescoute udp dport { 22, 161, 16384-32768 } accept
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ip daddr @latoilescoute tcp dport { 22 } accept
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ip saddr @ldap_clients ip daddr @ldap tcp dport { 389, 636 } accept
ip saddr @ldap_clients ip daddr @ldap udp dport { 636 } accept
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drop
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}
chain from_dmz {
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ip daddr 10.0.0.0/8 accept
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ip daddr @mysql ip saddr != @www tcp dport 3306 drop
ip daddr @mysql ip saddr != @smtp tcp dport 3306 drop
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}
}