... command¹

A remote shell makes it possible to control a remote process (nearly) in the same way as it was running at the local host. To be able to do this it connects the Standard I/O streams from the remote host to the local host using sockets. Also the relevant signals are transported to the remote host. Security aspects are solved in various ways, depending from the remote shell command used. However, in all cases there is no need to specify a user / password to get access to the remote host: this would deny a non-interactive run of the command at the remote host. A modern implementation of the remote shell is the Secure Shell (ssh command) which offers an encrypted connection with the remote host.

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... crontab²

With the crontab command, a user can start programs periodically at specific dates and or times using the cron daemon (server). It is available at most Unix systems. There also exists a public domain, source version.

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... Applet³

A Java is an architecture independent application, written in the Java programming language which runs in the so called JAVA virtual machine of the Web browser.

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... cluster⁴

See http://www.cs.vu.nl/das/ for a general description of the DAS cluster.

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... Web⁵

See http://www.phys.uu.nl/~blom/net_perf/das/Table for the DAS net performance monitor.

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... Web⁶

See http://ipp277.ipp.kfa-juelich.de/~blom/net_perf/ipp/Table for the IPP - FOM network monitor.

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