nathan.genret/firewall
1
0
Fork 0
forked from guillaume.emorine/siotp
Code Pull Requests Activity

Nouveau fichier : sisr1/tp07/files_firewall/current_ruleset_partie_5.nft

Browse Source
This commit is contained in:
guillaume.emorine 2024-04-08 09:40:57 +02:00
parent e696094f3b
commit f70b6e1e87
1 changed files with 89 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
sisr1/tp07/files_firewall/current_ruleset_partie_5.nft Normal file
View File

@ -0,0 +1,89 @@
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{
chain prerouting {
type filter hook prerouting priority filter; policy drop;
ct state established, related accept
icmp type echo-reply 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 21 accept
tcp dport {80, 443} ip saddr $lan-ntw accept
tcp sport {80, 443} ip saddr $lan-ntw accept
tcp dport 22 accept
ip saddr $proxy tcp dport {80, 443} accept
}
chain system_in {
type filter hook input priority filter; policy drop;
ct state established, related accept
icmp type echo-reply accept
icmp type echo-request iif {$lanif} accept
tcp dport 20 accept
tcp dport 21 accept
tcp dport {80, 443} accept
tcp dport 22 accept
ip saddr $proxy tcp dport {80, 443} accept
}
chain routing {
type filter hook forward priority filter; policy drop;
ct state established, related accept
icmp type echo-request iif {$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 {
type filter hook output priority filter; policy drop;
ip daddr $dns accept
ip daddr $proxy tcp dport $proxyport accept
icmp type echo-reply oif {$lanif} accept
icmp type echo-request accept
tcp dport 20 accept
tcp sport 20 accept
tcp dport 21 accept
tcp sport 21 accept
tcp dport {80, 443} accept
tcp sport {80, 443} accept
tcp sport 22 accept
}
chain postrouting {
type filter hook postrouting priority filter; policy drop;
ct state established, related accept
ip daddr $dns accept
ip daddr $proxy tcp dport $proxyport accept
icmp type echo-request ip saddr {$iplan, $ipdmz, $firewall} accept
icmp type echo-reply iif {$dmzif} oif {$lanif} accept
icmp type echo-request iif {$lanif} oif {$dmzif} accept
icmp type echo-request ip saddr $iplan oif $lanif accept
tcp dport 20 accept
tcp sport 20 accept
tcp dport 21 accept
tcp sport 21 accept
tcp dport {80, 443} accept
tcp sport {80, 443} accept
tcp sport 22 accept
}
chain pre_nat {
type nat hook prerouting priority filter; policy accept;
}
chain post_nat {
type nat hook postrouting priority filter; policy accept;
ip saddr $lan-ntw oif $netif snat $firewall
}
}