Hi there 
Wrote simple script to enable/disable port 80 on your router.
Version 2 
#!/bin/bash
function process_action {
echo "What would you like to do?"
echo "Enter 'e' for enable port 80, 'd' for disable port 80, or 'r' for redirect from port 80 to 443."
echo "Please note: Enter the option exactly as shown above."
read action
case $action in
e|E)
echo "Enabling HTTP access to the router"
sed -i 's/#listen 80;/listen 80;/g' /etc/nginx/conf.d/gl.conf
sed -i 's/#listen \[::\]:80;/listen \[::\]:80;/g' /etc/nginx/conf.d/gl.conf
;;
d|D)
echo "Disabling HTTP access to the router"
sed -i 's/listen 80;/#listen 80;/g' /etc/nginx/conf.d/gl.conf
sed -i 's/listen \[::\]:80;/#listen \[::\]:80;/g' /etc/nginx/conf.d/gl.conf
;;
r|R)
echo "WARNING: The redirect feature is untested and should be used at your own risk."
read -p "Are you sure you want to proceed with setting up redirection from port 80 to 443? (y/n): " confirm
if [[ $confirm =~ ^[Yy]$ ]]; then
echo "Setting up redirection from port 80 to 443"
if grep -q "return 301 https://\$host\$request_uri;" /etc/nginx/conf.d/gl.conf; then
cat <<EOF >> /etc/nginx/conf.d/gl.conf
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
return 301 https://\$host\$request_uri;
}
EOF
else
echo "Redirection already set up."
fi
else
echo "Redirect setup cancelled. Please choose another option."
process_action
fi
;;
*)
echo "Invalid option. Please enter 'e', 'd', or 'r' exactly as shown above."
process_action
;;
esac
echo "Restarting nginx"
/etc/init.d/nginx restart
exit 0
}
process_action
Version 1
#!/bin/bash
echo "Do you want to enable or disable port 80?"
echo "Enter 'enable' to enable port 80 or 'disable' to disable port 80."
read action
if [ "$action" == "enable" ]; then
echo "Enabling HTTP access to the router"
sed -i 's/#listen 80;/listen 80;/g' /etc/nginx/conf.d/gl.conf
sed -i 's/#listen \[::\]:80;/listen \[::\]:80;/g' /etc/nginx/conf.d/gl.conf
elif [ "$action" == "disable" ]; then
echo "Disabling HTTP access to the router"
sed -i 's/listen 80;/#listen 80;/g' /etc/nginx/conf.d/gl.conf
sed -i 's/listen \[::\]:80;/#listen \[::\]:80;/g' /etc/nginx/conf.d/gl.conf
else
echo "Invalid option. Please enter 'enable' or 'disable'."
exit 1
fi
echo "Restarting nginx"
/etc/init.d/nginx restart
How to use it?
Run this commands on your host machine (NOT router):
nano port_config.sh
Paste code from above (or use v1 if you want) and save file.
scp -O -r port_config.sh root@192.168.8.1:/tmp
Enter password
ssh root@192.168.8.1
Enter password again
cd /tmp
./port_config.sh
DOUBLE CHECK THAT HTTPS SUPPORTED BEFORE RUNNING THE SCRIPT
Just replace http:// to https:// in link. If Admin page works, you can run the script. If not, use its option to enable http again.
