Shares internet from wlp3s0 through enp0s25

share.sh

#!/bin/bash
# Shares internet from wlp3s0 through enp0s25

case "$1" in 
    start)
ifconfig enp0s25 up
ifconfig enp0s25 192.168.0.1
iptables --table nat --append POSTROUTING --out-interface wlp3s0 -j MASQUERADE
iptables --append FORWARD --in-interface enp0s25 -j ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward
echo "set other computers in the range of"
echo "192.168.0.0 255.255.255.0"
echo "gateway 192.168.0.1"
echo "dns 192.168.10.1"  #this is my router's ip, you should use yours or another dns server
;;
    stop)
echo 0 > /proc/sys/net/ipv4/ip_forward
ifconfig enp0s25 down
iptables --table nat --delete POSTROUTING --out-interface wlp3s0 -j MASQUERADE
;;
    *)
echo "usage: $0 {start|stop}"
;;
esac