How to Verify Open Ports for Online Floating Licenses

When using an online floating license, two specific ports must be open in your firewall for outgoing connections. These ports are specified in the header of your license file, for example:

# Ports 5053 and XXXX must be open in your firewall for outgoing connections.

Follow the steps below to verify that both ports are open:

On Windows (PowerShell)

1. Open PowerShell.
2. Run the following commands (replace XXXX with the second port number shown in your license file):

   Test-NetConnection ls61.rlmcloud.com -Port 5053 
   Test-NetConnection ls61.rlmcloud.com -Port XXXX

3. A successful check will include a line like:

TcpTestSucceeded : True

On Linux (Terminal)

Depending on which tools are available on your system, use one of the following commands for each port (5053 and XXXX):

• Using nmap:

  nmap -PS ls61.rlmcloud.com -p 5053,XXXX

  Example successful output:

  PORT     STATE SERVICE
  5053/tcp open  unknown 
  XXXX/tcp open  unknown

• Using telnet:

  telnet ls61.rlmcloud.com 5053
  telnet ls61.rlmcloud.com XXXX

  A successful connection will clear the screen or display a connection message.
  If the port is blocked, you will see a connection error.