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Multiple Mandos servers can coexist on a network without any
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trouble. They do not clash, and clients will try all available
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servers. This means that if just one reboots then the other can
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bring it back up, but if both reboots at the same time they will
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bring it back up, but if both reboot at the same time they will
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stay down until someone types in the password on one of them.
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** Faking ping replies?
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In the early designs, the mandos-client(8mandos) program (which
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retrieves a password from the Mandos server) also prompted for a
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password on the terminal, in case a Mandos server could not be
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found. This duality of purpose was seen to be too complex to be a
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viable way to continue. Instead, the programs are now separated
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into mandos-client(8mandos) and password-prompt(8mandos), and a
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plugin-runner(8mandos) exist to run them both in parallel, allowing
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the first plugin to succeed to provide the password. This opened up
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for any number of additional plugins to run, all competing to be the
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first to find a password and provide it to the plugin runner.
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found. Other ways of retrieving a password could easily be
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envisoned, but this multiplicity of purpose was seen to be too
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complex to be a viable way to continue. Instead, the original
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program was separated into mandos-client(8mandos) and
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password-prompt(8mandos), and a plugin-runner(8mandos) exist to run
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them both in parallel, allowing the first successful plugin to
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provide the password. This opened up for any number of additional
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plugins to run, all competing to be the first to find a password and
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provide it to the plugin runner.
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Three additional plugins are provided:
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This prompts for a password when using usplash(8).
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This prompts for a password when using splashy(8).
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* askpass-fifo(8mandos)
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To provide compatibility with the "askpass" program from
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cryptsetup, this plugin listens to the same FIFO as askpass would
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(None of these take any options or reads any files.)
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More plugins could easily be written and added by the system
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More plugins can easily be written and added by the system
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administrator; see the section called "WRITING PLUGINS" in
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plugin-runner(8mandos) to learn the plugin requirements.
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Copyright © 2008 Teddy Hogeborn
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Copyright © 2008,2009 Teddy Hogeborn
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Copyright © 2008,2009 Björn Påhlsson
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