title: linux command to connect to another server using hostname and port number
body: <p>what is the Linux command to connect to another server using host name and port number?</p>
  
  <p>how to connect to another server using only host name and port number then check if an existing process is running? the only way i see it working is to log in to the server and run the <code>PS</code> command. but is there a way to do it without logging in directly to the other server and connect only with host name and port number and check the running process?</p>