晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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# Directions for creating the encrypted key that will be used to mount an
# eCryptfs filesystem
# Create the eCryptfs key (encrypted key type)
#
# The encrypted key type supports two formats: the 'default' format allows
# to generate a random symmetric key of the length specified, the 'ecryptfs'
# format generates an authentication token for the eCryptfs filesystem,
# which contains a randomly generated key. Two requirements for the latter
# format is that the key description must contain exactly 16 hexadecimal
# characters and that the encrypted key length must be equal to 64.
$ keyctl add encrypted 1000100010001000 "new ecryptfs trusted:kmk-trusted 64" @u
782117972
# Save the encrypted key
$ su -c 'keyctl pipe `keyctl search @u encrypted 1000100010001000` > /etc/keys/ecryptfs-trusted.blob'
# The eCryptfs key path name can be set in one of the following ways (specified in
# the order in which the variable is overwritten):
1) use the default value:
--------------------------------------------------------------------------
ECRYPTFSKEY="/etc/keys/ecryptfs-trusted.blob"
--------------------------------------------------------------------------
2) create the configuration file '/etc/sysconfig/ecryptfs' and set the ECRYPTFSKEY
variable;
3) specify the eCryptfs key path name in the 'ecryptfskey=' parameter of the kernel command
line.
# The configuration file '/etc/sysconfig/ecryptfs' is also used to specify
# more options for mounting the eCryptfs filesystem:
ECRYPTFSSRCDIR: existent directory in the lower root filesystem;
ECRYPTFSDSTDIR: mount point directory for the eCryptfs filesystem (the directory must be
created in the root filesystem before rebooting the platform);
ECRYPTFS_EXTRA_MOUNT_OPTS: extra mount options for the eCryptfs filesystem (the 'ecryptfs_sig'
option is automatically added by the dracut script).
# Example of the configuration file:
----------- '/etc/sysconfig/ecryptfs' (with default values) -----------
ECRYPTFS_KEY="/etc/keys/ecryptfs-trusted.blob"
ECRYPTFSSRCDIR="/secret"
ECRYPTFSDSTDIR="${ECRYPTFSSRCDIR}"
ECRYPTFS_EXTRA_MOUNT_OPTS=""
-----------------------------------------------------------------------
# If the variable ECRYPTFSDSTDIR is not specified in the configuration file,
# its value will be equal to that of ECRYPTFSSRCDIR.