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Re: [Condor-users] Condor on multiple network interfaces
Condor requires bidirectional connectivity between the submit node and the execute node. In other words, Condor must be able to open up network connections to the execute machine from the submit machine and also to the submit machine from the execute machine.
If connections can only be made in one direction in your network (e.g. from private to public), then you can configure condor to use GCB to broker connections in the reverse direction. There's a section in the manual about that: 

http://www.cs.wisc.edu/condor/manual/v6.8/3_7Networking.html#SECTION00473000000000000000

--Dan

Nicholas Lavigne wrote:
Thanks for the reply. I now have all of the machines appearing in the pool (as reported by condor_status) but I have a new problem. I *think* I understand the problem, but as of yet the solution is evading me....
Our network is mostly Windows and so the vanilla universe is my primary concern. Now, submitting a job from the public network, the central manager is able to match the job to a machine on the private network, but the job does not run, presumably because Condor's file transfer mechanism does not know how to transfer the file from the public network to the private network.
I know that other pools are using a similar type of setup and so there must be a solution to this problem. I am not currently using a network file system, could this be the answer? 

-Nicholas
On 7/18/07, *Tomas Grigera* <tgrigera@xxxxxxxxxxxxxxxxxx <mailto:tgrigera@xxxxxxxxxxxxxxxxxx>> wrote: 

    Hi,

    I use a similar setup. I have

    BIND_ALL_INTERFACES = TRUE


    But you must make sure the server name resolves to the public IP also
    for the internal machines.

    Tomas

    On 7/17/07, Nicholas Lavigne < condor.list@xxxxxxxxxxxxxx
    <mailto:condor.list@xxxxxxxxxxxxxx>> wrote:
    > Due to a shortage of allocated IP addresses on our university's
    network, we
    > have decided to use the central manager machine (running Debian)
    as a
    > gateway with two network interfaces and place some compute nodes
    on a
    > sub-network behind it.  The router is doing its job correctly,
    but the
    > machines on the subnet do not seem to appear in the Condor pool.
    >
    > Are there any general rules for having Condor listen on two network
    > interfaces?  Maybe some modification to the HOSTALLOW_READ and
    > HOSTALLOW_WRITE variables on the central manager?  Currently,
    >
    > HOSTALLOW_READ = *
    > HOSTALLOW_WRITE = 134.95.*
    >
    > But I would like Condor to listen on the 192.168.10.* subnet as
    well.
    >
    > Any suggestions?
    >
    >
    > Thanks,
    > Nicholas Lavigne
    > University of Cologne
    > Graduiertenkolleg Risikomanagement
    >
    >
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