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发表于 2005-4-28 18:21:12
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显示全部楼层
楼上用Debian的吧,用这个命令看一些特殊用户和组的介绍
zcat /usr/share/doc/base-passwd/users-and-groups.txt.gz
nobody, nogroup
Daemons that need not own any files sometimes run as user nobody and group
nogroup, although using a dedicated user is far preferable. Thus, no files
on a system should be owned by this user or group.
(Technically speaking, it does no harm for a file to be owned by group
nogroup as long as the ownership confers no additional privileges, that is
if the group and other permission bits are equal. However, this is sloppy
practice and should be avoided.)
If root-squashing is in use over NFS, root access from the client is
performed as user nobody on the server. |
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