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How to use telnet to check the connection to the port on the server pc

Description

à You want to test if the client pc can get to the port on the server pc.

(If this would not work, but Ping works, then the port is blocked by a FireWall)

Solution

Use Telnet to the server pc.

  1. Open command (hit the Windows Start button, and type in 'cmd' (+ENTER))

  1. Type in 'Telnet' followed by the name of the server and the port number

  1. There are 3 possible answers:
    1. The connection works

If the window becomes black, it means it worked. You are now 'listening' to this port.

  1. The connection does not work

  1. Telnet is not 'activated on your pc'

Activate the 'Telnet client' first, and then repeat this page. http://www.wikihow.com/Activate-Telnet-in-Windows-7

Remark: A successful Telnet only means that you can connect to the used port, and that there is a service/program giving information through this port. It does not always mean that this is SCIA.
For example:
Problem: I can telnet to port ‘27000’, but the SCIA license (in the protection setup) does not work
Answer: Another license server is already using port 27000, so change the port for FlexNET license administrator (see chapter "Change the License Server Manager port in use")

SCIA web

Downloads

SCIA is part of the Nemetschek group

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