eliminar puerto ubuntu
sudo kill -9 `sudo lsof -t -i:3002`
matar proceso en puerto
#To list any process listening to the port 8080:
lsof -i:8080
#To kill any process listening to the port 8080:
kill $(lsof -t -i:8080)
#or more violently:
kill -9 $(lsof -t -i:8080)