Selected Category Information

`ssh/scp` Transfers

Utilizing the PSC developed HPN-ssh enhancments to the openssh protocol.

The following transfers can performed from a Linux workstation outside of the NCSA domain. A valid NCSA issued Kerberos ticket can be obtained by running kinit thus enabling secure passwordless access to NCSA HPC resources.
To enable passwordless ssh/scp transfers between multiple TeraGrid and/or NCSA systems, valid GSI credentials can be used.

Example Listing

HPN-scp None cipher

Transfer using HPN-enabled sshd server ans scp client.

> > ~/local/bin/scp -P 222 -oNoneEnabled=yes -oNoneSwitch=yes /gpfs_scratch1/j doe/1GB co-login1.ncsa.uiuc.edu:/scratch/users/jdoe/1GB WARNING: ENAB LED NONE CIPHER 1GB

WARNING: ENABLED NONE CIPHER
1GB &nbs p; &n bsp; &nbs p; &n bsp; &nbs p; &n bsp; &nbs p; &n bsp; &nbs p; &n bsp; 100% 1024MB 25.0MB/s 00:41

SSH Streaming Tar

Copy a local directory structure via streaming tar onto NCSA TeraGrid.

> tar -cf - tst/ | ssh user@tg-login4.ncsa.teragrid.org "tar xf -"

NULL

SSH Streaming to Tar

Copy a local directory into a tarball on Tungsten cluster.

> tar -cf - tst/ | ssh user@tuna.ncsa.uiuc.edu "cat > tst.tar"