How to Start/Stop and Enable/Disable Firewall Ubuntu
Check Firewall status -- Open command
sudo ufw status
If active, than will show this type of result
Status: Active
To Action From
-- ------ ----
Apache Full ALLOW Anywhere
20/tcp ALLOW Anywhere
21/tcp ALLOW Anywhere
990/tcp ALLOW Anywhere
40000:50000/tcp ALLOW Anywhere
8090/tcp ALLOW Anywhere
8090 ALLOW Anywhere
Apache Full (v6) ALLOW Anywhere (v6)
20/tcp (v6) ALLOW Anywhere (v6)
21/tcp (v6) ALLOW Anywhere (v6)
990/tcp (v6) ALLOW Anywhere (v6)
40000:50000/tcp (v6) ALLOW Anywhere (v6)
8090/tcp (v6) ALLOW Anywhere (v6)
8090 (v6) ALLOW Anywhere (v6)
If you want to disable
sudo ufw disable
Then check the status again.
Status: inactive
sudo ufw enable
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