Difference between revisions of "UFW Ubuntu Firewall"
From Free Knowledge Base- The DUCK Project: information for everyone
(Created page with "To block a port in UFW we use ufw deny command ufw deny port/protocol Examples ufw deny 53") |
m |
||
| (One intermediate revision by one user not shown) | |||
| Line 1: | Line 1: | ||
To block a port in UFW we use ufw deny command | To block a port in UFW we use ufw deny command | ||
| − | + | ufw deny port/protocol | |
| − | ufw deny port/protocol | + | |
Examples | Examples | ||
| + | ufw deny 53 | ||
| + | |||
| + | block specific IP address | ||
| + | |||
| + | The syntax is: | ||
| + | sudo ufw deny from {ip-address-here} to any | ||
| + | |||
| + | To block or deny all packets from 192.168.1.5, enter: | ||
| + | sudo ufw deny from 192.168.1.5 to any | ||
| + | |||
| + | To allow ssh service | ||
| + | ufw allow ssh | ||
| + | |||
| + | To see rules config file | ||
| + | cat /etc/ufw/before.rules|less | ||
| − | ufw | + | To enable firewall and active on boot |
| + | ufw enable | ||
Latest revision as of 13:46, 15 July 2018
To block a port in UFW we use ufw deny command
ufw deny port/protocol
Examples
ufw deny 53
block specific IP address
The syntax is:
sudo ufw deny from {ip-address-here} to any
To block or deny all packets from 192.168.1.5, enter:
sudo ufw deny from 192.168.1.5 to any
To allow ssh service
ufw allow ssh
To see rules config file
cat /etc/ufw/before.rules|less
To enable firewall and active on boot
ufw enable
