v1.4

LazyTunnel.sh

@@ -6,30 +6,30 @@ mainland_ip=$(curl -s https://api.ipify.org)
 
 if [[ "$1" == "uninstall" ]]; then
   echo "Uninstalling..."
-  iptables -t nat -D PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip}
-  iptables -t nat -D PREROUTING -j DNAT --to-destination ${foreign_ip}
-  iptables -t nat -D POSTROUTING -j MASQUERADE
-  iptables -F
-  iptables -X
-  iptables -t nat -F
-  iptables -t nat -X
-  iptables -t mangle -F
-  iptables -t mangle -X
-  iptables -P INPUT ACCEPT
-  iptables -P FORWARD ACCEPT
-  iptables -P OUTPUT ACCEPT
-  systemctl stop iptables
-  systemctl disable iptables
-  rm /etc/systemd/system/iptables.service
-  rm /root/ip.txt
-  rm /root/LazyTunnel.sh
-  systemctl daemon-reload
-  rm "${script_path}"
+  foreign_ip=$(cat /root/ip.txt)
+  sudo iptables -t nat -D PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip}
+  sudo iptables -t nat -D PREROUTING -j DNAT --to-destination ${foreign_ip}
+  sudo iptables -t nat -D POSTROUTING -j MASQUERADE
+  sudo iptables -F
+  sudo iptables -X
+  sudo iptables -t nat -F
+  sudo iptables -t nat -X
+  sudo iptables -t mangle -F
+  sudo iptables -t mangle -X
+  sudo iptables -P INPUT ACCEPT
+  sudo iptables -P FORWARD ACCEPT
+  sudo iptables -P OUTPUT ACCEPT
+  sudo systemctl stop iptables
+  sudo systemctl disable iptables
+  sudo rm /etc/systemd/system/iptables.service
+  sudo rm /root/ip.txt
+  sudo systemctl daemon-reload
+  sudo rm "${script_path}"
   exit 0
 fi
 
 # Check if the rules are already in place
-if iptables -t nat -C PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip} 2>/dev/null; then
+if sudo iptables -t nat -C PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip} 2>/dev/null; then
   echo "IPTables rules are already set, nothing to do."
   exit 0
 fi
@@ -40,9 +40,9 @@ echo ${foreign_ip} > /root/ip.txt
 
 sysctl net.ipv4.ip_forward=1
 
-iptables -t nat -A PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip}
-iptables -t nat -A PREROUTING -j DNAT --to-destination ${foreign_ip}
-iptables -t nat -A POSTROUTING -j MASQUERADE
+sudo iptables -t nat -A PREROUTING -p tcp --dport 22 -j DNAT --to-destination ${mainland_ip}
+sudo iptables -t nat -A PREROUTING -j DNAT --to-destination ${foreign_ip}
+sudo iptables -t nat -A POSTROUTING -j MASQUERADE
 
 echo "[Unit]
 Description=Persistent IPTables NAT rules
@@ -51,10 +51,10 @@ Before=network.target
 ExecStart=/sbin/iptables-restore /root/ip.txt
 RemainAfterExit=yes
 [Install]
-WantedBy=multi-user.target" > /etc/systemd/system/iptables.service
+WantedBy=multi-user.target" | sudo tee /etc/systemd/system/iptables.service > /dev/null
 
-systemctl enable iptables
-systemctl start iptables
+sudo systemctl enable iptables
+sudo systemctl start iptables
 
 # Save a copy of the script locally
 cp "$0" "${script_path}"