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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pam_localuser — require users to be listed in /etc/passwd
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DESCRIPTION
pam_localuser is a PAM module to help implementing site-wide login policies,
where they typically include a subset of the network's users and a few accounts
that are local to a particular workstation. Using pam_localuser and pam_wheel
or pam_listfile is an effective way to restrict access to either local users
and/or a subset of the network's users.
This could also be implemented using pam_listfile.so and a very short awk
script invoked by cron, but it's common enough to have been separated out.
OPTIONS
debug
Print debug information.
file=/path/passwd
Use a file other than /etc/passwd.
EXAMPLES
Add the following lines to /etc/pam.d/su to allow only local users or group
wheel to use su.
account sufficient pam_localuser.so
account required pam_wheel.so
AUTHOR
pam_localuser was written by Nalin Dahyabhai <nalin@redhat.com>.