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Linux Check If A Port Is Open

[Solved] Linux Check If A Port Is Open | Erlang - Code Explorer | yomemimo.com
Question : linux how to see ports in use

Answered by : pierre-joubert

# Any of the following
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22
sudo nmap -sTU -O IP-address-Here

Source : | Last Update : Tue, 07 Apr 20

Question : linux check if a port is open

Answered by : unusual-unicorn-npjr71lv26d2

sudo lsof -i -P -n | grep LISTEN

Source : | Last Update : Wed, 23 Jun 21

Question : check if port is available linux

Answered by : itchy-ibis-mob1ene7q4ls

sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo ss -tulpn | grep LISTEN
sudo lsof -i:22 ## see a specific port such as 22 ##
sudo nmap -sTU -O IP-address-Here

Source : https://www.cyberciti.biz/faq/unix-linux-check-if-port-is-in-use-command/ | Last Update : Wed, 20 Oct 21

Question : open port on linux

Answered by : clumsy-crocodile-hdlq0882xbvn

sudo ufw allow <PORT_NUMBER>

Source : | Last Update : Fri, 08 Jul 22

Question : check what ports are open linux

Answered by : confused-cardinal-2j9sau6qxfwd

## if you use linux
sudo ss -tulw

Source : | Last Update : Sun, 07 Jun 20

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