Hi Phil
As long as you are not running the flexlm license server in another machine i.e. it is run in the local machine itself, that is to say your SGI O2 box, then there is no need for you to open the port 1700 or 1753 to the outside world.
What all you need is to make sure that you do not block packets from your 'localhost' i.e. 127.0.0.1. I am quite foggy about SGI IRIX now and so exactly what is the counterpart of Linux universe's 'iptables' in SGI, I cannot recall. But at least in the Linux systems, the simple rule is out allow all the packets that originate from the localhost back into any of the sockets i.e. ports without restriction.
Since packets that originate and end up within 127.0.0.1 doesn't even leave your box physically, you are quite safe. In fact, I don't have either port 1700 or 1753 open to the outside world to make flexlm license manager to work.
Best Regards
Rajan
On Tue, 27 Mar 2018, Philip Dennison wrote:
> Hi all,
>
> I am being required to improved security for the ten SGI O2s that I still
> have running XwinNMR.
>
> The preferred option is to put each one behind a router, making a private
> network. I then need to open the minimum number of ports in the router to
> make everything work.
>
> I can make the O2 boot happily with the required open ports for ssh and nfs,
> but XwinNMR will not start.
>
> It appears that flexlm requires extra ports.
>
> Port 1700 is listed on the first line of my license files, but opening this
> does not allow XwinNMR to start.
>
> Does anyone know which additional ports I require?
>
> Thanks,
>
> Phil.
> --
> Dr Phil Dennison
> NMR Facility Director (949)824-6010 (office)
> Department of Chemistry (949)824-5649 (lab)
> University of California (949)824-8571 (fax)
> Irvine, CA 92697-2025 dennison_at_uci.edu
> USA
>
>
____________________________________
Rajan K Paranji, Ph.D.
NMR Facility Manager
Department of Chemistry
Room 65, Bagley Hall
University of Washington
Seattle, WA 98195
*ph: 206 685 2581
fax: 206 685 8665
email: paranji_at_chem.washington.edu
____________________________________
Received on Wed Mar 28 2018 - 13:20:07 MST