Difference between revisions of "SSH"
From HCL
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Hostname heterogeneous.ucd.ie | Hostname heterogeneous.ucd.ie | ||
ProxyCommand ssh -qax csserver nc %h %p | ProxyCommand ssh -qax csserver nc %h %p | ||
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Since the installation of a new PBS system, you can not directly log into a hclXX node. You can do | Since the installation of a new PBS system, you can not directly log into a hclXX node. You can do | ||
Revision as of 10:59, 7 May 2010
Passwordless SSH
To set up passwordless SSH, there are three main things to do:
- generate a pair of public/private keys on your local computer
- copy the public key from the source computer to the target computer's authorized_keys file
- check the permissions.
You can repeat that transitively for "A->B->C". You can use the initial pair of keys everywhere.
See here for details:
http://www.stearns.org/doc/ssh-techniques.current.html
Making a cascade of SSH connections easy
Here is a very convenient way to set up the access to any machine directly instead of doing a cascade of SSH calls. Put this into your .ssh/config file :
Host csserver User kdichev Hostname csserver.ucd.ie Host heterogeneous User kiril Hostname heterogeneous.ucd.ie ProxyCommand ssh -qax csserver nc %h %p
Since the installation of a new PBS system, you can not directly log into a hclXX node. You can do
ssh heterogeneous
instead and use "qsub"
X11 forwarding
ssh -X hostname
