wiki.chpc.ac.za

User Tools

Site Tools

You are here: start » howto » licensing
Trace: • tune • mfix • licensing • compilers • compiling_gcc
howto:licensing

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
howto:licensing [2023/06/22 11:23]
ccrosby [Alternative procedure for off-site license servers] 		howto:licensing [2025/01/29 09:00] (current)
ccrosby [SSH tunneling]
Line 49: Line 49:
  
  
-=== SSH tunneling ===+==== SSH tunneling ====
 It is possible for compute nodes to communicate with the outside world using ssh-tunnels.  Users log into and transfer files to the cluster using the secure shell, secure copy and secure file transfer protocol, which all involve communication through port 22.  SSH tunnels allow connections made to a local port to be forwarded to a remote machine via a secure channel.  An example of accessing a remote license with an SSH tunnel through the node chpclic1 is the way that STAR-CCM+ users can check out a "power on demand" license from an open license server operated by the software vendor: It is possible for compute nodes to communicate with the outside world using ssh-tunnels.  Users log into and transfer files to the cluster using the secure shell, secure copy and secure file transfer protocol, which all involve communication through port 22.  SSH tunnels allow connections made to a local port to be forwarded to a remote machine via a secure channel.  An example of accessing a remote license with an SSH tunnel through the node chpclic1 is the way that STAR-CCM+ users can check out a "power on demand" license from an open license server operated by the software vendor:
 <code> <code>
Line 78: Line 78:
 196.24.44.6 196.24.44.6
 196.24.44.129 196.24.44.129
 +196.24.44.83
 +154.114.44.7
 </code> </code>
  
Line 124: Line 126:
 export LM_LICENSE_FILE=2345@login1 export LM_LICENSE_FILE=2345@login1
 </code> </code>
-  * When you take down the license tunnel, kill the tunnel process on the license server.  Then log into scp.chpc.ac.za (login1 internally), look for your secondary tunnel with ''ps ux | grep ssh" and use a ''kill -9'' command followed by the process ID to take down the secondary tunnel on login1.+  * When you take down the license tunnel, kill the tunnel process on the license server.  Then log into scp.chpc.ac.za (login1 internally), look for your secondary tunnel with ''ps ux | grep ssh'' and use a ''kill -9'' command followed by the process ID to take down the secondary tunnel on login1.
  
  
  
/app/dokuwiki/data/attic/howto/licensing.1687425812.txt.gz · Last modified: 2023/06/22 11:23 by ccrosby

Page Tools

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 3.0 Unported
CC Attribution-Noncommercial-Share Alike 3.0 Unported Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki