/Shell/Bash/Ubuntu open port

Ubuntu open port

See what is using a port ubuntu

$ sudo lsof -i:22

8

Ubuntu open port

sudo ufw allow 1191/tcp

7

Open firewall port in linux

Debian: 

sudo ufw allow PORT. 

CentOS: 

sudo firewall-cmd --zone=public --permanent --add-port=PORT/tcp 
sudo firewall-cmd --reload

3

How to open all port ubuntu

This Will Open All Ports 
sudo ufw allow 1:65535/tcp

1

Source: oelko-dev.blogspot.com

Ubuntu open all port

sudo ufw allow 1:9999/tcp

0

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