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Suricata and rules should be done, changed the --sport to dport on most of them

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jelly Tomas
2026-03-22 10:50:23 +00:00
parent 9852a3f21b
commit 330a08f01d
2 changed files with 18 additions and 26 deletions
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42
ROUTER.sh
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@@ -55,53 +55,45 @@ sudo iptables -A OUTPUT -o lo -j ACCEPT
#sudo iptables -t nat -A POSTROUTING -i enp0s9 -o enp0s3 -j MASQUERADE #SUS
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT #CAREFULL
#DNS name resolution requests sent to outside servers and want a response:
sudo iptables -A INPUT -i enp0s10 -p udp --sport 53 -j ACCEPT
sudo iptables -A INPUT -i enp0s10 -p udp --dport 53 -j ACCEPT
#SSH connections to the router system that originate from the inside and want an answer:
sudo iptables -A INPUT -i enp0s9 -p tcp --sport 22 -j ACCEPT #TESTED
sudo iptables -A INPUT -i enp0s8 -s 23.214.219.133 -p tcp --sport 22 -j ACCEPT #TESTED
sudo iptables -A INPUT -i enp0s9 -p tcp --dport 22 -j ACCEPT
sudo iptables -A INPUT -i enp0s8 -s 23.214.219.133 -p tcp --dport 22 -j ACCEPT
#The dns server should be able to resolve names using the internet (and others???)
sudo iptables -A FORWARD -i enp0s8 -o enp0s10 -s 23.214.219.130 -p udp --sport 53 -j ACCEPT #NEED to test !!
sudo iptables -A FORWARD -i enp0s8 -o enp0s10 -s 23.214.219.130 -p udp --dport 53 -j ACCEPT
#The internal network should be able to send and recieve dns name resolutions to the dns server (1!)
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.130 -p udp --sport 53 -j ACCEPT #CORRECT AND TESTED WILL ACTIVATE WHEN YOU SEND FROM ENP0S9 to ENP0S8
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.130 -p udp --dport 53 -j ACCEPT
sudo iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT #THIS IS IMPORTANT AND MIGHT FUCK US
#The dns and dns2 servers should be able to synchronize the contents of DNS zones. (protocol tcp port 53)
sudo iptables -A FORWARD -i enp0s8 -o enp0s10 -s 23.214.219.130 -p tcp --sport 53 -j ACCEPT #NEED to test!
sudo iptables -A FORWARD -i enp0s8 -o enp0s10 -s 23.214.219.130 -p tcp --dport 53 -j ACCEPT
#SMTP connections to the smtp server and returns
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.131 -p tcp --sport 587 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.131 -p tcp --dport 587 -j ACCEPT
#sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 587 -m state --state ESTABLISHED,RELATED -j ACCEPT
#POP and IMAP connections to the www server
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.134 -p tcp --sport 143 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.134 -p tcp --sport 110 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.134 -p tcp --dport 143 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.134 -p tcp --dport 110 -j ACCEPT
#HTTP and HTTPS connectins
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --sport 80 -j ACCEPT #TESTED THROUGH NETCAT
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --sport 443 -j ACCEPT #TESTED THROUGH NETCAT
#sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 80 -m state --state ESTABLISHED,RELATED -j ACCEPT
#sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 443 -m state --state ESTABLISHED,RELATED -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --dport 80 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --dport 443 -j ACCEPT
#OpenVPN connections to the vpn-gw server
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.133 -p udp --sport 1194 -j ACCEPT #NEDDS testing
sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.133 -p udp --dport 1194 -j ACCEPT
#sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p udp --dport 1194 -j ACCEPT
#VPN clients connected to the gateway vpn-gw ???? vpn should be able to acess ftp e datastore
sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -s 23.214.219.133 -d 192.168.10.2 -j ACCEPT #NEDDS testing
sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -s 23.214.219.133 -d 192.168.10.3 -j ACCEPT #NEDDS testing
sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -s 23.214.219.133 -d 192.168.10.2 -j ACCEPT
sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -s 23.214.219.133 -d 192.168.10.3 -j ACCEPT
#FTP da internet WORRIED ???
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.2 -p tcp --sport 21 -j ACCEPT #Changed
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.2 -p tcp --dport 21 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --sport 20 -j ACCEPT #MIGHT BE NEEDED
#SSH CONNECTIONS datastore server but only from eden or dn2 DNAT -s servers, and port and -d interface
sudo iptables -t nat -A PREROUTING -s $dns2 -p tcp --dport 22 -j DNAT --to-destination 192.168.10.3
sudo iptables -t nat -A PREROUTING -s $eden -p tcp --dport 22 -j DNAT --to-destination 192.168.10.3
sudo iptables -t nat -A PREROUTING -s $dns2 -p tcp --sport 22 -j DNAT --to-destination 192.168.10.3
sudo iptables -t nat -A PREROUTING -s $eden -p tcp --sport 22 -j DNAT --to-destination 192.168.10.3
sudo iptables -t nat -A PREROUTING -i enp0s10 -p tcp --dport 21 -j DNAT --to-destination 192.168.10.2
sudo iptables -t nat -A PREROUTING -i enp0s10 -p tcp --sport 21 -j DNAT --to-destination 192.168.10.2
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.3 -s $dns2 -p tcp --sport 22 -j ACCEPT #Need to check and make diferent ip addresses
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.3 -s $eden -p tcp --sport 22 -j ACCEPT
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.3 -s $dns2 -p tcp --dport 22 -j ACCEPT #Need to check and make diferent ip addresses
sudo iptables -A FORWARD -i enp0s10 -o enp0s9 -d 192.168.10.3 -s $eden -p tcp --dport 22 -j ACCEPT
#enp0s9 to internet DNS, http, https, ssh, FTP(SERVERS??????(WHO INVITED THIS GUY)) SNAT
sudo iptables -t nat -A POSTROUTING -s 192.168.10.0/24 -o enp0s10 -j SNAT --to-source 87.248.214.97
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p udp --sport 53 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --sport 80 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --sport 443 -j ACCEPT #TESTED
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p udp --dport 53 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --dport 80 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --dport 443 -j ACCEPT
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --sport 21 -j ACCEPT #MIGHT NOT BE ENOUGH
sudo iptables -A FORWARD -i enp0s9 -o enp0s10 -p tcp --dport 21 -j ACCEPT