81 lines
3.6 KiB
Bash
81 lines
3.6 KiB
Bash
# NETWORKS:
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# DMZ: 23.214.219.128/25
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# Internal: 192.168.10.0/24
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#
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# MACHINES:
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# DNS2: 192.137.16.75
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# EDEN 193.138.212.1
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dns2="192.137.16.75"
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eden="193.138.212.1"
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# ==============================
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# Router 1
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# INTERFACES:
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# - Internet: 87.248.214.97
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# - DMZ: 23.214.219.254
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# - Internal: 192.168.10.254
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# ==============================
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# ==============================
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# DMZ /25
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# IP:
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# - dns : 23.214.219.129
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# - dns2 : 23.214.219.130
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# - smtp : 23.214.219.131
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# - www : 23.214.219.132
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# - vpn-gw: 23.214.219.133
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# ==============================
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# ==============================
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# Internal
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# IP:
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# ftp: 192.168.10.1
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# datastore : 192.168.10.2
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# DHCP Client : 192.168.10.3-5
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# ==============================
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sudo ifconfig enp0s8 23.214.219.254 netmask 255.255.255.128
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sudo ifconfig enp0s9 192.168.10.254 netmask 255.255.255.0
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sudo ifconfig enp0s3 87.248.214.97 netmask 255.255.255.0
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sudo iptables -F
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sudo iptables -t nat -F
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sudo iptables -t mangle -F
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sudo sysctl -w net.ipv4.ip_forward=1
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iptables -P INPUT DROP
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iptables -P FORWARD DROP
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iptables -P OUTPUT ACCEPT
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sudo iptables -A INPUT -i lo -j ACCEPT
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sudo iptables -A OUTPUT -o lo -j ACCEPT
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sudo iptables -t nat -A POSTROUTING -o enp0s3 -j MASQUERADE
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#DNS name resolution requests sent to outside servers and want a response:TODO:INPUT
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sudo iptables -A FORWARD -i enp0s3 -p udp --sport 53 -m state --state ESTABLISHED,RELATED -j ACCEPT
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#SSH connections to the router system that originate from the inside and want an answer:TODO:INPUT
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sudo iptables -A FORWARD -i enp0s3 -o enp0s9 -p tcp --dport 22 -m state --state ESTABLISHED,RELATED -j ACCEPT
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sudo iptables -A FORWARD -i enp0s3 -d 23.214.219.133 -p tcp --dport 22 -m state --state ESTABLISHED,RELATED -j ACCEPT
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#The dns server should be able to resolve names using the internet (and others???)
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sudo iptables -A FORWARD -i enp0s8 -o enp0s3 -s 23.214.219.129 -p udp --dport 53 -j ACCEPT
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#The internal network should be able to send and recieve dns name resolutions to the dns server (1!)
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sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.129 -p udp --dport 53 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s8 -i enp0s9 -p udp --dport 53 -m state --state ESTABLISHED,RELATED -j ACCEPT
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#The dns and dns2 servers should be able to synchronize the contents of DNS zones. (protocol tcp port 53)
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sudo iptables -A FORWARD -i enp0s8 -o enp0s3 -d 193.137.16.75 -p tcp --dport 53 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s3 -o enp0s8 -d 23.214.219.129 -p tcp --dport 53 -j ACCEPT
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#SMTP connections to the smtp server and returns
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sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.131 -p tcp --dport 587 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 587 -m state --state ESTABLISHED,RELATED -j ACCEPT
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#POP and IMAP connections to the www server
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sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --dport 80 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.132 -p tcp --dport 443 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 80 -m state --state ESTABLISHED,RELATED -j ACCEPT
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sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p tcp --dport 443 -m state --state ESTABLISHED,RELATED -j ACCEPT
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#OpenVPN connections to the vpn-gw server
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sudo iptables -A FORWARD -i enp0s9 -o enp0s8 -d 23.214.219.133 -p udp --dport 1194 -j ACCEPT
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sudo iptables -A FORWARD -i enp0s8 -o enp0s9 -p udp --dport 1194 -j ACCEPT
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#VPN clients connected to the gateway vpn-gw ???? vpn should be able to acess ftp e datastore
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# Apartir daqui foi só para testar se as conecções funcionavam
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sudo iptables -A FORWARD -i enp0s8 -s 23.214.219.129 -p tcp --sport 22
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# Unsure these will work
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sudo iptables -A FORWARD -i enp0s9 -d 23.214.219.131
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