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Modifié : sisr1/tp07/files_firewall/current_ruleset_partie_4.nft

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Modifié :         sisr1/tp07/files_firewall/current_ruleset_partie_5.nft
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guillaume.emorine 2024-04-08 09:30:01 +02:00
parent d11c83d26c
commit a500d08cef
2 changed files with 75 additions and 60 deletions
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4
sisr1/tp07/files_firewall/current_ruleset_partie_4.nft
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@ -2,8 +2,10 @@ define netif = enp0s3
define dmzif = enp0s8 define dmzif = enp0s8
define lanif = enp0s9 define lanif = enp0s9
define lan-ntw = 10.0.0.0/24
define proxy = 10.121.38.1 define proxy = 10.121.38.1
defiine dns = {10.121.38.7 , 10.121.38.8} define dns = {10.121.38.7 , 10.121.38.8}
define proxyport = 8080 define proxyport = 8080
define dmznet = 172.16.0.1-172.16.0.254 define dmznet = 172.16.0.1-172.16.0.254

77
sisr1/tp07/files_firewall/current_ruleset_partie_5.nft
View File

@ -1,40 +1,56 @@
define netif = enp0s3
define dmzif = enp0s8
define lanif = enp0s9
define lan-ntw = 10.0.0.0/24
define proxy = 10.121.38.1
define dns = {10.121.38.7 , 10.121.38.8}
define proxyport = 8080
define dmznet = 172.16.0.1-172.16.0.254
define firewall = 192.168.0.120
define ipdmz = 172.16.0.254
define iplan = 10.0.0.254
table ip ipfilter{ table ip ipfilter{
chain prerouting { chain prerouting {
type filter hook prerouting priority filter; policy drop; type filter hook prerouting priority filter; policy drop;
icmp type echo-reply accept
ct state established, related accept ct state established, related accept
icmp type echo-request iif "enp0s9" ip daddr 172.16.0.1-172.16.0.254 accept icmp type echo-reply accept
icmp type echo-request iif "enp0s9" ip daddr 10.0.0.254 accept icmp type echo-request iif {$lanif} ip daddr $dmznet accept
icmp type echo-request iif {$lanif} ip daddr {$iplan} accept
tcp dport 20 accept tcp dport 20 accept
tcp dport 21 accept tcp dport 21 accept
tcp dport { 80, 443 } accept tcp dport {80, 443} ip saddr $lan-ntw accept
tcp sport {80, 443} ip saddr $lan-ntw accept
tcp dport 22 accept tcp dport 22 accept
ip saddr 10.121.38.1 tcp dport { 80, 443 } accept ip saddr $proxy tcp dport {80, 443} accept
} }
chain system_in { chain system_in {
type filter hook input priority filter; policy drop; type filter hook input priority filter; policy drop;
icmp type echo-reply accept
icmp type echo-request iif "enp0s9" accept
ct state established, related accept ct state established, related accept
icmp type echo-reply accept
icmp type echo-request iif {$lanif} accept
tcp dport 20 accept tcp dport 20 accept
tcp dport 21 accept tcp dport 21 accept
tcp dport {80, 443} accept tcp dport {80, 443} accept
tcp dport 22 accept tcp dport 22 accept
ip saddr 10.121.38.1 tcp dport { 80, 443 } accept ip saddr $proxy tcp dport {80, 443} accept
} }
chain routing { chain routing {
type filter hook forward priority filter; policy drop; type filter hook forward priority filter; policy drop;
icmp type echo-request iif "enp0s9" oif "enp0s8" accept ct state established, related accept
icmp type echo-reply iif "enp0s8" oif "enp0s9" accept icmp type echo-request iif {$lanif} oif {$dmzif} accept
icmp type echo-reply iif {$dmzif} oif {$lanif} accept
tcp dport {80, 443} ip saddr $lan-ntw accept
tcp sport {80, 443} ip saddr $lan-ntw accept
} }
chain system_out { chain system_out {
type filter hook output priority filter; policy drop; type filter hook output priority filter; policy drop;
ip daddr { 10.121.38.7, 10.121.38.8 } accept ip daddr $dns accept
ip daddr 10.121.38.1 tcp dport 8080 accept ip daddr $proxy tcp dport $proxyport accept
icmp type echo-reply oif "enp0s9" accept icmp type echo-reply oif {$lanif} accept
icmp type echo-request accept icmp type echo-request accept
tcp dport 20 accept tcp dport 20 accept
tcp sport 20 accept tcp sport 20 accept
@ -44,15 +60,15 @@ table ip ipfilter {
tcp sport {80, 443} accept tcp sport {80, 443} accept
tcp sport 22 accept tcp sport 22 accept
} }
chain postrouting { chain postrouting {
type filter hook postrouting priority filter; policy drop; type filter hook postrouting priority filter; policy drop;
ip daddr { 10.121.38.7, 10.121.38.8 } accept ct state established, related accept
ip daddr 10.121.38.1 tcp dport 8080 accept ip daddr $dns accept
icmp type echo-request ip saddr { 10.0.0.254, 172.16.0.254, 192.168.0.120 } accept ip daddr $proxy tcp dport $proxyport accept
icmp type echo-reply iif "enp0s8" oif "enp0s9" accept icmp type echo-request ip saddr {$iplan, $ipdmz, $firewall} accept
icmp type echo-request iif "enp0s9" oif "enp0s8" accept icmp type echo-reply iif {$dmzif} oif {$lanif} accept
icmp type echo-request ip saddr 10.0.0.254 oif "enp0s9" accept icmp type echo-request iif {$lanif} oif {$dmzif} accept
icmp type echo-request ip saddr $iplan oif $lanif accept
tcp dport 20 accept tcp dport 20 accept
tcp sport 20 accept tcp sport 20 accept
tcp dport 21 accept tcp dport 21 accept
@ -62,15 +78,12 @@ table ip ipfilter {
tcp sport 22 accept tcp sport 22 accept
} }
chain nat_prerouting { chain pre_nat {
type nat hook prerouting priority filter; policy drop; type nat hook prerouting priority filter; policy accept;
tcp dport { 80, 443 } accept
tcp dport 22 accept
} }
chain nat_postrouting {
type nat hook postrouting priority filter; policy drop; chain post_nat {
tcp dport { 80, 443 } accept type nat hook postrouting priority filter; policy accept;
tcp sport { 80, 443 } accept ip saddr $lan-ntw oif $netif snat $firewall
tcp sport 22 accept
} }
} }