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PUBLIC MARKS from camel with tags control & remote

2008 :: Parallel SSH execution and a single shell to control them all

Many people use SSH to log in to remote machines, copy files around, and perform general system administration. If you want to increase your productivity with SSH, you can try a tool that lets you run commands on more than one remote machine at the same time. Parallel ssh, Cluster SSH, and ClusterIt let you specify commands in a single terminal window and send them to a collection of remote machines where they can be executed. Why you would need a utility like this when, using openSSH, you can create a file containing your commands and use a bash for loop to run it on a list of remote hosts, one at a time? One advantage of a parallel SSH utility is that commands can be run on several hosts at the same time. For a short-running task this might not matter much, but if a task needs an hour to complete and you need to run it on 20 hosts, parallel execution beats serial by a mile. Also, if you want to interactively edit the same file on multiple machines, it might be quicker to use a parallel SSH utility and edit the file on all nodes with vi rather than concoct a script to do the same edit. Many of these parallel SSH tools include support for copying to many hosts at once (a parallel version of scp) or using rsync on a collection of hosts at once. Because the parallel SSH implementations know about all the hosts in a group, some of them also offer the ability to execute a command "on one host" and will work out which host to pick using load balancing. Finally, some parallel SSH projects let you use barriers so that you can execute a collection of commands and explicitly have each node in the group wait until all the nodes have completed a stage before moving on to the next stage of processing.

Zivios - Opensource Enterprise Management

by 1 other
Zivios is a web based control panel which brings together vital open source technologies needed by medium and large enterprises. At it's core, Zivios provides identity management, single sign-on, user, group and computer provisioning, as well as remote management of services. Zivios offers an easy and extensible API, allowing organizations to extend the core application with additional plugins for their in-house or third party software.

Open-Source Classroom Management With iTALC On Ubuntu 7.10 | HowtoForge - Linux Howtos and Tutorials

This document describes how to set up iTALC on Ubuntu 7.10. iTALC is an open-source classroom management solution that lets you view and control other computers in your network. It lets you remote-control other computers, show the teacher's screen on all students' computers, lock workstations, send text-messages to students, power on/off and reboot remote computers, etc.



UltraVNC SC (Simple Clic)

UltraVNC SC est un mini (166ko) Serveur UltraVNC qui peut être personnalisé et pré configuré pour le téléchargement par un Client. UltraVNC SC ne nécessite aucune installation et n'utilise pas la base de registre. Il suffit au client de télécharger le petit exécutable et de Cliquer pour établir une connexion. La connexion est initialisée par le serveur, pour permettre un accès facile via le pare-feu du client.


EchoWare® enables any peer-to-peer or client-server application to utilize a "packet relay server" approach in order to achieve end-to-end connectivity without adjusting any intervening firewalls, proxies or NAT'ing routers. Via echoWare, all the application's data connections appear to the network as "outgoing" connections to the same TCP port of the echoServer.

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