服务器评测
Linux系统对访问控制(ACL)权限的实现
1.对分区添加一个ACL访问控制的权限和增加用户
[root@localhost ~]# mount -o remount,acl /dev/md0 /mnt/sdb
[root@localhost ~]# useradd user1
[root@localhost ~]# useradd user2
2.关于用户对目录的权限授权
[root@localhost ~]# setfacl -m u:user1:rwx /mnt/sdb
[root@localhost ~]# setfacl -m u:user2:rx /mnt/sdb
3.测试是否生效
[root@localhost ~]# su – user1 –连接user1用户
[user1@localhost ~]$ cd/mnt/sdb
[user1@localhost sdb]$ mkdirqw –user1用户可以写入文件
[user1@localhost sdb]$ touch1.txt
[user1@localhost sdb]$ exit
logout
[root@localhost ~]# su – user2 –连接user2用户
[user2@localhost ~]$ cd/mnt/sdb
[user2@localhost sdb]$ mkdiras –不能创建目录
mkdir: cannot create directory `as’: Permission denied
[user2@localhost sdb]$ touch2.txt –不能写入文件
touch: cannot touch`2.txt’: Permission denied
[user2@localhost sdb]$
4.查看文件是否的控制权限和取消控制权限
[user2@localhost sdb]$ getfacl 1.txt –查看文件权限
# file: 1.txt
# owner: user1
# group: user1
user::rw-
group::rw-
other::r–
[user2@localhost sdb]$ getfacl qw –查看目录权限
# file: qw
# owner: user1
# group: user1
user::rwx
group::rwx
other::r-x
[root@localhost ~]# setfacl -x u:user1 /mnt/sdb –用-x取消权限
[root@localhost ~]# getfacl /mnt/sdb –查看取消之后的权限
getfacl: Removing leading ‘/’from absolute path names
# file: mnt/sdb
# owner: root
# group: root
user::rwx
user:user2:r-x
group::r-x
mask::r-x
other::rwx
[root@localhost ~]#
Linux实现Cisco风格ACL之空想 http://www.linuxidc.com/Linux/2013-05/84669.htm
Linux ACL权限规划：getfacl,setfacl使用 http://www.linuxidc.com/Linux/2013-07/88049.htm
