Set ufw rules as a oneliner

Question

This is how I setup my ufw rules:

$ sudo ufw default deny
$ sudo ufw allow ssh
$ sudo ufw allow http
$ sudo ufw allow https
$ sudo ufw allow 53/tcp
$ sudo ufw allow 53/udp
$ sudo ufw allow from any port 68 to any port 67 proto udp

Is it possible to get a oneliner for that?

score 0 · Accepted Answer · answered Oct 04 '17 at 05:24

You could write it as

sudo ufw default deny & sudo ufw allow ssh & sudo ufw allow http & sudo ufw allow https & sudo ufw allow 53/tcp & sudo ufw allow 53/udp & sudo ufw allow from any port 68 to any port 67 proto udp

seperating the commands by &.

Anyway more beautiful would be writing a script E.g. in ~/setUp_UFW.sh

#!/bin/bash

sudo ufw default deny l
sudo ufw allow ssh
sudo ufw allow http
sudo ufw allow https
sudo ufw allow 53/tcp
sudo ufw allow 53/udp
sudo ufw allow from any port 68 to any port 67 proto udp

Make the script executable

chmod +x ~/setUp_UFW.sh

than everytime you just go

~/setUp_UFW.sh

to set it up. (You will be asked for the sudo password when the script sees sudo the first time.)

How would I prevent output for this part of the bash script? — user3142695, Oct 04 '17 at 14:32
To not write output of a command to stdout in bash end each line with &> /dev/null or wrap the whole script as further explained in this answer — derHugo, Oct 04 '17 at 15:14

Set ufw rules as a oneliner

1 Answers1