[CentOS] rsync question: building list taking forever

[Denniston, Todd A CIV NAVSURFWARCENDIV Crane]

> -----Original Message-----
> From: John Doe [mailto:jdmls at yahoo.com]
> Sent: Monday, October 20, 2014 5:30 AM
> To: CentOS mailing list; Tim Dunphy
> Subject: Re: [CentOS] rsync question: building list taking forever
> 
> Are you "allowed" to temporarily run an ssh tunnel (or stunnel) on your jumpbox?
> So connecting from host1 to jumpbox on port XXX would be tunneled to ssh port on host2...
> 
> Or with netcat (if you can mkfifo)?
>   mkfifo backpipe
>   nc -l 12345 0<backpipe | nc host2 22 1>backpipeBut you will have to trick ssh into accepting your jumpbox "fingerprint"...
> 
> JD
> 

Or perhaps easier (depending on how paranoid sshd configs are) with ProxyCommand in ssh/config, i.e., setup config so one ssh command can get you logged onto the final target and then use rsync across ssh as per normal:

http://sshmenu.sourceforge.net/articles/transparent-mulithop.html

Then rsync will be running on both ends, where the data (filesystem information) is LOCAL, i.e., fast.

I would use, if possible/allowed,  key[s] with ssh(-agent) to make the whole connect to multiple hosts thing easier (i.e., fewer passphrase requests).

[OP: `they don't allow ssh between the datacenters` ...but... they nfs between them...??? ME: much head scratching.]

Even when this disclaimer is not here:
I am not a contracting officer. I do not have authority to make or modify the terms of any contract.