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

[Mark Calleja <M.Calleja@xxxxxxxxxxxxxxx>]

Hi Senthil,

What you envisage should certainly be possible; we use a very similar 
model here. In our case we have a number of flocked pools, with some 
machines running only private IP addresses and others running both 
public and private ones. However, Condor is forced to operate over the 
private IP addresses *only*. Now, does your head node also have a 
private address? It doesn't sound like it from your post, so I'm not 
sure what you hope to achieve by setting BIND_ALL_INTERFACES. 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.

Cheers,
Mark

Natarajan, Senthil wrote:
> Hi,
>
> 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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