Port forwarding of flexlm licenses...
From: Guillaume Dargaud (USENETnospam_at_gdargaud.net)
Date: 06/25/03
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Date: Wed, 25 Jun 2003 15:18:14 -0600
Hopefully what I'm trying to do is possible, but I haven't figured it out
yet.
I have a machine with software and licenses that I want to access through
another machine, so it sounds like a job for ssh port forwarding, right ?
Here's the setup:
- one machine, AA, has software and flexlm style floating licenses running
on port 7241
- the cluster has one master node, NN1, connected to the outside and also to
all the other nodes. The AA directory containing the software is NFS
mounted. I can run the software fine from there.
- the slave nodes, NN2..NN12, do not have remote connections: they can see
only the master node. They can access the software (via MFS, similar to NFS)
but it refuses to run because it cannot find the license server (no DNS
reference and no connection).
So my idea was to put in the /etc/hosts file that NN1=AA and to do a port
forwarding _on_ NN1 so that flexlm requests go to AA:
ssh -g -L7241:AA:7241 localhost
It doesn't work and I'm sure it's because this issue is too confused in my
brain yet.
Anyone cares to enlighten me a bit ? Thanks.
To further complicate the matter, I have a nodelocked-license (for a
compiler) running on NN1 itself on port 7496 so I hope there's no risk of
'interference'.
-- Guillaume Dargaud Colorado State University - Dept of Atmospheric Science http://www.gdargaud.net/ "If a program is useful, it will have to be changed... ...If a program is useless, it will have to be documented"
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