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。 sh-3ll

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sh-3ll 1.0
DIR:/usr/lib/systemd/system/
Upload File :
Current File : //usr/lib/systemd/system/nm-priv-helper.service
[Unit]
Description=NetworkManager Privileged Helper

#
# nm-priv-helper exists for privilege separation. It allows NetworkManager
# to run without certain capabilities, and ask nm-priv-helper
# for special operations where more privileges are required.
#

# While nm-priv-helper has privileges that NetworkManager has not, it
# does not mean that itself should run totally unconstrained. On the
# contrary, it also should only have permissions it requires.
#
# nm-priv-helper rejects all requests that come from any other than the
# name owner of "org.freedesktop.NetworkManager" (that is,
# NetworkManager process itself). It is thus only an implementation
# detail and provides no public API to the user.

[Service]
Type=dbus
BusName=org.freedesktop.nm_priv_helper
ExecStart=/usr/libexec/nm-priv-helper
NotifyAccess=main

# Extra configuration options. Set via `systemctl edit
# nm-priv-helper.service`:
#
# FOR TESTING ONLY: disable authentication to allow requests from
# everybody. Don't set this outside of testing!
#Environment=NM_PRIV_HELPER_NO_AUTH_FOR_TESTING=1
#
# The logging level for debug messages (to stdout).
#Environment=NM_PRIV_HELPER_LOG=TRACE
#
# nm-priv-helper will exit on idle after timeout. Set timeout here or
# set to 2147483647 for infinity.

#Environment=NM_PRIV_HELPER_IDLE_TIMEOUT_MSEC=10000


# Restrict:
AmbientCapabilities=
CapabilityBoundingSet=
PrivateDevices=true
PrivateMounts=true
PrivateNetwork=true
PrivateTmp=true
ProtectClock=true
ProtectControlGroups=true
ProtectHome=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectSystem=strict
RestrictAddressFamilies=
RestrictNamespaces=true
SystemCallFilter=~@clock
SystemCallFilter=~@cpu-emulation
SystemCallFilter=~@debug
SystemCallFilter=~@module
SystemCallFilter=~@mount
SystemCallFilter=~@obsolete
SystemCallFilter=~@privileged
SystemCallFilter=~@raw-io
SystemCallFilter=~@reboot
SystemCallFilter=~@swap
NoNewPrivileges=true
SupplementaryGroups=

# Grant:
CapabilityBoundingSet=CAP_DAC_OVERRIDE
PrivateUsers=no
RestrictAddressFamilies=AF_UNIX
SystemCallFilter=@resources