Re: [Condor-users] Adding private network nodes to condor

[Mark Calleja <M.Calleja@xxxxxxxxxxxxxxx>]

Hi John,

Kewley, J (John) wrote:
> > From: condor-users-bounces@xxxxxxxxxxx
> > [mailto:condor-users-bounces@xxxxxxxxxxx]On Behalf Of Mark Calleja
> >     
> > > ... May I 
> > >       
> > suggest that you give the head node a private IP address too 
> > (it could 
> > be a virtual interface; it doesn't have to have an extra 
> > NIC). Let's say 
> > that this private IP address is 172.24.116.14. Then in your 
> > head node's 
> > configuration you'd need:
> >
> > CONDOR_HOST = head-hostname.my.private.domain
> > FULL_HOSTNAME = head-hostname.my.private.domain
> > NETWORK_INTERFACE = 172.24.116.14
> >
> > All your other nodes don't need to nominate a 
> > NETWORK_INTERFACE, since 
> > they only have the one. They just need to make sure to set 
> > CONDOR_HOST 
> > to the same as above. Your pool should now work entirely via 
> > the private 
> > IP addresses. Note that the head node also has a DNS entry in 
> > the domain 
> > spanned by the private IP range.
> >     
>
> Mark,
>
> Would this still work for the rest of the Condor pool (the parts
> that are already working ok, but are not on the private network) ?
>
> cheers
>
> JK
>   

As long as the different networks can route to eachother, then yes. You 
need to ensure that those "private" IP addresses can reach the machines 
in your pool(s) with public IP addresses (they're contained within the 
same border routers), and the Condor configuration allows it, then 
you're good to. I/we find it slightly distasteful to operate as such, 
and like the idea of operating Condor only via the private IP addresses 
as it's a nice security bonus. Hence, we disable such inter-operation 
from within Condor.

Cheers,
Mark

>   
> > > I am trying to add a cluster of machines (with the head node has 
> > > public IP address and accessible to public, other nodes are private 
> > > and can’t be accessible to public) to the existing Condor pool.
> > >
> > > I installed condor on head node and private nodes, and I 
> > >       
> > added this in 
> >     
> > > head node condor_config file
> > >
> > > BIND_ALL_INTERFACES = TRUE
> > >
> > > But still I couldn’t see those private nodes on Condor pool.
> > >
> > > How to make those private nodes also part of Condor pool is 
> > >       
> > there any 
> >     
> > > better solution to make use of ideal cycles of those private nodes.
> > >
> > > Thanks,
> > >
> > > Senthil
> > >
> > >
> > >       
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