I have UFW enabled, 'default deny incoming' set and no any additional rules, but I still can access all ports from other PCs.
I have to manually block each port. What can be wrong?
12.04firewalliptablesufw
I have UFW enabled, 'default deny incoming' set and no any additional rules, but I still can access all ports from other PCs.
I have to manually block each port. What can be wrong?
Best Answer
Citting the UFW introduction from Ubuntu Community...
The information bellow can be used to handle UFW from terminal using
sudo
for each command and providing root's password.How can i enable UFW?
sudo ufw enable
this will enalbe UFW with default rules
Note that by default, deny is being applied to incoming.
How can i check UFW's status?
sudo ufw status verbose
How can i check any exceptions in rules? <-- with this you can check of what is blocked
sudo ufw show raw
You can also read the rules files in /etc/ufw (the files whose names end with .rules)
Examples:
sudo ufw deny 53/tcp
sudo ufw deny 53/udp
To delete a rule, simply prefix the original rule with delete. For example, if the original rule was:
ufw deny 80/tcp
Use this to delete it:
sudo ufw delete deny 80/tcp
Full reference: https://help.ubuntu.com/community/UFW