3
A client key has been automatically created in /etc/keys/mandos.
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The next step is to run "mandos-keygen --password" to get a config
5
file section. This should be appended to /etc/mandos/clients.conf
8
* Use the Correct Network Interface
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Make sure that the correct network interface is specified in the
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DEVICE setting in the "/etc/initramfs-tools/initramfs.conf" file.
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If this is changed, it will be necessary to update the initrd image
13
by doing "update-initramfs -k all -u". This setting can be
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overridden at boot time on the Linux kernel command line using the
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sixth colon-separated field of the "ip=" option; for exact syntax,
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see the file "Documentation/nfsroot.txt" in the Linux source tree.
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Note that since this is used in the initial RAM disk environment,
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the network interface must exist at that stage. Thus, the interface
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can *not* be a pseudo-interface such as "br0" or "tun0"; instead, a
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real interface (such as "eth0") must be used.
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After the server has been started and this client's key added, it is
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possible to verify that the correct password will be received by
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this client by running the command, on the client:
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# /usr/lib/mandos/plugins.d/mandos-client \
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--pubkey=/etc/keys/mandos/pubkey.txt \
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--seckey=/etc/keys/mandos/seckey.txt; echo
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This command should retrieve the password from the server, decrypt
34
it, and output it to standard output. There it can be verified to
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be the correct password, before rebooting.
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* User-Supplied Plugins
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Any plugins found in /etc/mandos/plugins.d will override and add to
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the normal Mandos plugins. When adding or changing plugins, do not
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forget to update the initital RAM disk image:
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# update-initramfs -k all -u
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* Do *NOT* Edit /etc/crypttab
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It is NOT necessary to edit /etc/crypttab to specify
48
/usr/lib/mandos/plugin-runner as a keyscript for the root file
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system; if no keyscript is given for the root file system, the
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Mandos client will be the new default way for getting a password for
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the root file system when booting.
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If it ever should be necessary, the Mandos client can be temporarily
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prevented from running at startup by passing the parameter
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"mandos=off" to the kernel.
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* Non-local Connection (Not Using ZeroConf)
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If the "ip=" kernel command line option is used to specify a
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complete IP address and device name, as noted above, it then becomes
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possible to specify a specific IP address and port to connect to,
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instead of using ZeroConf. The syntax for doing this is
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"mandos=connect:<IP_ADDRESS>:<PORT_NUMBER>".
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Warning: this will cause the client to make exactly one attempt at
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connecting, and then fail if it does not succeed.
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For very advanced users, it it possible to specify simply
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"mandos=connect" on the kernel command line to make the system only
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set up the network (using the data in the "ip=" option) and not pass
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any extra "--connect" options to mandos-client at boot. For this to
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work, "--options-for=mandos-client:--connect=<ADDRESS>:<PORT>" needs
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to be manually added to the file "/etc/mandos/plugin-runner.conf".
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-- Teddy Hogeborn <teddy@fukt.bsnet.se>, Tue, 14 Apr 2009 16:51:18 +0200
added
removed
debian/mandos-client.README.Debian
