1
* Choose the Client Network Interface
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Please make sure that the correct network interface is specified in
4
the DEVICE setting in the "/etc/initramfs-tools/initramfs.conf"
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file. If the setting is empty, the interface will be autodetected
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at boot time, which may not be correct. *If* the DEVICE setting is
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changed, it will be necessary to update the initrd image by running
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update-initramfs -k all -u
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The device can be overridden at boot time on the Linux kernel
13
command line using the sixth colon-separated field of the "ip="
14
option; for exact syntax, read the documentation in the file
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"/usr/share/doc/linux-doc-*/Documentation/filesystems/nfsroot.txt",
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available in the "linux-doc-*" package.
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Note that since this network interface is used in the initial RAM
19
disk environment, the network interface *must* exist at that stage.
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Thus, the interface can *not* be a pseudo-interface such as "br0" or
21
"tun0"; instead, a real interface (such as "eth0") must be used.
1
This file documents the next steps to take after installation of the
2
Debian package, and also contain some notes specific to the Debian
3
packaging which are not also in the manual.
23
5
* Adding a Client Password to the Server
38
20
is possible to verify that the correct password will be received by
39
21
this client by running the command, on the client:
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/usr/lib/mandos/plugins.d/mandos-client \
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MANDOSPLUGINHELPERDIR=/usr/lib/$(dpkg-architecture \
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-qDEB_HOST_MULTIARCH)/mandos/plugin-helpers \
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/usr/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH \
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)/mandos/plugins.d/mandos-client \
42
27
--pubkey=/etc/keys/mandos/pubkey.txt \
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--seckey=/etc/keys/mandos/seckey.txt; echo
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--seckey=/etc/keys/mandos/seckey.txt \
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--tls-privkey=/etc/keys/mandos/tls-privkey.pem \
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--tls-pubkey=/etc/keys/mandos/tls-pubkey.pem; echo
45
32
This command should retrieve the password from the server, decrypt
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33
it, and output it to standard output. There it can be verified to
47
34
be the correct password, before rebooting.
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If it ever should be necessary, the Mandos client can be temporarily
39
prevented from running at startup by passing the parameter
40
"mandos=off" to the kernel.
42
* Specifying a Client Network Interface
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At boot time the network interfaces to use will by default be
45
automatically detected. If this should result in incorrect
46
interfaces, edit the DEVICE setting in the
47
"/etc/initramfs-tools/initramfs.conf" file. (The default setting is
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empty, meaning it will autodetect the interfaces.) *If* the DEVICE
49
setting is changed, it will be necessary to update the initrd image
50
by running this command:
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update-initramfs -k all -u
54
The device can also be overridden at boot time on the Linux kernel
55
command line using the sixth colon-separated field of the "ip="
56
option; for exact syntax, read the documentation in the file
57
"/usr/share/doc/linux-doc-*/Documentation/filesystems/nfs/nfsroot.txt",
58
available in the "linux-doc-*" package.
60
Note that since the network interfaces are used in the initial RAM
61
disk environment, the network interfaces *must* exist at that stage.
62
Thus, an interface can *not* be a pseudo-interface such as "br0" or
63
"tun0"; instead, only real interfaces (such as "eth0") can be used.
64
This can be overcome by writing a "network hook" program to create
65
an interface (see mandos-client(8mandos)) and placing it in
66
"/etc/mandos/network-hooks.d", from where it will be copied into the
67
initial RAM disk. Example network hook scripts can be found in
68
"/usr/share/doc/mandos-client/examples/network-hooks.d".
49
70
* User-Supplied Plugins
51
72
Any plugins found in "/etc/mandos/plugins.d" will override and add
62
83
Mandos client will be the new default way for getting a password for
63
84
the root file system when booting.
67
If it ever should be necessary, the Mandos client can be temporarily
68
prevented from running at startup by passing the parameter
69
"mandos=off" to the kernel.
71
86
* Non-local Connection (Not Using ZeroConf)
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If the "ip=" kernel command line option is used to specify a
74
89
complete IP address and device name, as noted above, it then becomes
75
90
possible to specify a specific IP address and port to connect to,
76
91
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
92
"mandos=connect:<IP_ADDRESS>:<PORT_NUMBER>" on the kernel command
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For very advanced users, it is possible to specify simply
83
96
"mandos=connect" on the kernel command line to make the system only
84
97
set up the network (using the data in the "ip=" option) and not pass
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98
any extra "--connect" options to mandos-client at boot. For this to
86
99
work, "--options-for=mandos-client:--connect=<ADDRESS>:<PORT>" needs
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100
to be manually added to the file "/etc/mandos/plugin-runner.conf".
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-- Teddy Hogeborn <teddy@fukt.bsnet.se>, Sun, 26 Sep 2010 20:08:05 +0200
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* Diffie-Hellman Parameters
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On installation, a file with Diffie-Hellman parameters,
105
/etc/keys/mandos/dhparams.pem, will be generated and automatically
106
installed into the initital RAM disk image and also used by the
107
Mandos Client on boot. If different parameters are needed for
108
policy or other reasons, simply replace the existing dhparams.pem
109
file and update the initital RAM disk image.
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-- Teddy Hogeborn <teddy@recompile.se>, Sat, 9 Feb 2019 15:08:04 +0100
added
removed
debian/mandos-client.README.Debian
