Re: scp via another server

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Hi,

This is fairly common. I would look into the use of a proxy command to do
exactly what you ask. In addition, though not strictly necessary, I also
would generally recommend rsync rather than scp*. Both of these are
documented on my page here:

http://www2.physics.ox.ac.uk/it-services/central-ssh-access

Its got an Oxford Physics specific slant to it but hopefully its helpful.

*I don't think rsync has any issue when the remote machine prints things
either.

Sean
On 13 Jun 2016 7:26 pm, "H" <agents@xxxxxxxxxxxxxx> wrote:

> On June 12, 2016 8:51:42 PM CEST, cpolish@xxxxxxxxxxxx wrote:
> >On 2016-06-12 19:07, H wrote:
> >> On 06/12/2016 05:21 PM, J Martin Rushton wrote:
> >> > -----BEGIN PGP SIGNED MESSAGE-----
> >> > Hash: SHA1
> >> >
> >> > $ scp svr2:/path/to/source svr1:/path/to/dest
> >> >
> >> > You'll get twice the network traffic since the copy is running on
> >your
> >> > workstattoin (or whatever).
> >> >
> >> > On 12/06/16 15:40, H wrote:
> >> > > I normally use ssh to log into a remote server, change directory
> >> > > and then use scp from there to copy files from another remote
> >> > > server to the first one.
> >> > >
> >> > > Now the first server has been hit by continuous error correction
> >> > > messages from the ECC controller, all of which are corrected, and
> >I
> >> > > am unable to get a command line to issue the required commands to
> >> > > change directory and then run scp from the other server. I have
> >no
> >> > > problems, however, getting into the first server - except for
> >being
> >> > > drowned by the error correction messages and the server seems to
> >be
> >> > > running "fine".
> >> > >
> >> > > Until I am able to get to the server and investigate, is it
> >> > > possible to accomplish the above on a single command line, thus
> >> > > avoiding seeing the error messages? I should add that both the
> >> > > first and second server are set up to accept keys and not
> >passwords
> >> > > so at least I don't have to worry about that.
> >
> >Try changing kernel console log level to 0, possibly:
> >
> >   echo '0 0 0 0' > /proc/sys/kernel/printk
> >
> >should take effect instantly. You _might_ be able to do this
> >remotely via ssh. Also possibly can do via magic sysrq + 0.
> >
> >(see: RHEL 6 Deployment Guide (rev 3.1 2011-05-19) Appendix C
> >pp.537-538)
> >
> >HTH, HAND,
> >--
> >Charles Polisher
> >
> >_______________________________________________
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> >CentOS@xxxxxxxxxx
> >https://lists.centos.org/mailman/listinfo/centos
>
> Tried it but did not work since I am not root...
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