linux how to see ports in use
# 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-Herelinux how to see ports in use
# 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-Hereport running linux
sudo lsof +M -i4check if port is running in ubuntu
# Any of the following
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # Port
sudo nmap -sTU -O IP-address-Hereport running linux
sudo nmap -T Aggressive -A -v 127.0.0.1 -p 1-65000check port status linux
You can check if a process listens on a TCP or UDP port with netstat -tuplen.Copyright © 2021 Codeinu
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