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Merge branch 'thomaspatzke-patch-1'

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Klas Lindfors 2017-02-23 12:18:33 +01:00
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16
doc/Authentication_Using_Challenge-Response.adoc
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@ -68,16 +68,18 @@ $ ykpamcfg -2 -v
Stored initial challenge and expected response in '/home/alice/.yubico/challenge-123456'.
$
------
If your /home/user folder is encrypted you should move the challenge file in a different path (i.e. /var/yubico) and then set the right permission for the user to create the files. To do this do as follow:
From security perspective, it is generally a good idea to move the challenge file in a system-wide path that is only read- and writable by root. To do this do as follow:
----
$ mkdir /var/yubico
$ chmod +t /var/yubico
$ chmod 777 /var/yubico
$ ykpamcfg -2 -v -p /var/yubico
$ sudo mkdir /var/yubico
$ sudo chown root.root /var/yubico
$ sudo chmod 700 /var/yubico
$ ykpamcfg -2 -v
...
Stored initial challenge and expected response in '/var/yubico/alice-123456'.
$
Stored initial challenge and expected response in '$HOME/.yubico/challenge-123456'.
$ sudo mv ~/.yubico/challenge-123456 /var/yubico/alice-123456
$ sudo chown root.root /var/yubico/alice-123456
$ sudo chmod 600 /var/yubico/alice-123456
----
It is important that the file is named with the name of the user that is going to be authenticated by this YubiKey.