To prevent irrelevant keys from being offered, you have to explicitly specify this in every host entry in the ~/.ssh/config (on the client machine) file by adding IdentitiesOnly like so:
Host www.somehost.com
IdentityFile ~/.ssh/key_for_somehost_rsa
SSH on multiple machines/servers using clusterssh simultaneously October 3rd, 2009 by WEBNESBAY This article provides you useful information to control multiple machines using single terminal using cluster ssh What is CLUSTER SSH? With ClusterSSH it is possible to make a SSH connection to multiple servers or machines to perform tasks from one single command window, without any scripting. The ‘cssh’ command lets you connect to any server specified as a command line argument, or to groups of servers (or cluster nodes) defined in a configuration file.
Cluster SSH opens terminal windows with connections to specified hosts and an administration console. Any text typed into the administration console is replicated to all other connected and active windows. This tool is intended for, but not limited to, cl
Einen Tunnel (mit SSH) zu bauen, bedeutet, daß man eine Terminalverbindung auf einen anderen Rechner herstellt und über diese Verbindung (die verschlüselt ist) wir zusätzlich ein weiterer Port geleitet.
E. Clouet. Acta Materialia, 54 (13):
3543 - 3552(2006)Selected Papers from the Meeting "Micromechanics and Microstructure Evolution: Modeling, Simulation and Experiments" held in Madrid/Spain, 11-16 September 2005.