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# First connect machines !
# Enable port fowrading
sysctl net.ipv4.ip_forward=1
# fowrwarding Wifi -> Ethernet
iptables -t nat -A POSTROUTING -o internet0 -j MASQUERADE
iptables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i net0 -o internet0 -j ACCEPT
# First setup of device
sudo ip link set up dev enp0s25
sudo ip addr add 192.168.2.100/24 dev enp0s25 # arbitrary address
# /etc/dhcpd.conf
option domain-name-servers 80.67.169.12, 80.67.169.40;
option subnet-mask 255.255.255.0;
option routers 192.168.4.100;
subnet 192.168.4.0 netmask 255.255.255.0 {
range 192.168.4.150 192.168.4.250;
host fenec {
hardware ethernet 5c:ff:35:09:ac:6a;
fixed-address 192.168.4.100;
}
}
# Service
# /etc/systemd/system/dhcpd4@.service
[Unit]
Description=IPv4 DHCP server on %I
Wants=network.target
After=network.target
[Service]
Type=forking
PIDFile=/run/dhcpd4.pid
ExecStart=/usr/bin/dhcpd -4 -q -pf /run/dhcpd4.pid %I
KillSignal=SIGINT
[Install]
WantedBy=multi-user.target
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