[HTCondor-users] ssh_to_job via JumpHost from local machine for port forwarding

["Till Riedel (TM)" <riedel@xxxxxxx>]

Hi,

(I have been thinking about a solution to a problem that I have the 
feeling could be solved much simpler. I thought maybe this list can safe 
me from doing to stupid stuff. I still don't get the HTCondor internal 
communication part completely...)


I am accessing htcondor via a login node . What I want to do is to 
define a ProxyCommand line in my ssh config to directly connect to the 
job like:

Host *%condor-job
ÂProxyCommand ssh login.example.com ssh_to_job_tunnel.sh $(echo %h | 
cut -d%% -f1)


ssh_to_job_tunnel.sh only contains a line to call the ProxyCommand 
directly:

eval `echo $@|sed -n "s/.*-oProxyCommand=\(.*\)condor-job.*/\1/p"`


But now I have a problem I don't seem to get around: ssh_to_job always 
generates new keypairs and I cannot add them easily (maybe I try could 
to do agent-forwarding, which I don't like). So I was thinking to fork 
condor_ssh_to_job to add the keys as parameters. But before I start 
digging further into the source I thought I first join this mailing-list 
to not solve problems that have been solved already!


Maybe I should also should also explain what I want to achieve: I want 
to securely forward a unix socket from the job via ssh to my local 
machine. (Actually somewhat similar to what the ssh_to_job stuff does, 
but it seems pretty hardcoded into the starter class or is there a 
command to open sockets or bidirectional pipes to the remote job)


Hope I don't sound to mad for a first post.


Thanks in advance for the help!

Till





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KIT - The Research University in the Helmholtz Association

Dr. Till Riedel (AkadR)
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