Administrace komentářů

[root@brnv1a27 ~]# mkdir /tmp/testdir
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# groupadd group1
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# groupadd group2
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# useradd -g group1 user1
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# useradd -g group2 user2
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# id user1
uid=507(user1) gid=509(group1) groups=509(group1)
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# id user2
uid=508(user2) gid=510(group2) groups=510(group2)
[root@brnv1a27 ~]#
[root@brnv1a27 ~]# cd /tmp/
[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# df -Ph .
Filesystem                    Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root   12G  8.0G  2.9G  74% /
[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# grep VolGroup-lv_root /etc/mtab
/dev/mapper/VolGroup-lv_root / ext4 rw,acl 0 0
[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# setfacl -R -m g:group1:rwx testdir/
[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# setfacl -R -m g:group2:r-x testdir/
[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# getfacl testdir/
# file: testdir/
# owner: root
# group: root
user::rwx
group::r-x
group:group1:rwx
group:group2:r-x
mask::rwx
other::r-x

[root@brnv1a27 tmp]#
[root@brnv1a27 tmp]# su - user1
[user1@brnv1a27 ~]$ echo "user1" > /tmp/testdir/file
[user1@brnv1a27 ~]$ exit
logout
[root@brnv1a27 tmp]# su - user2
[user2@brnv1a27 ~]$ echo "user2" >> /tmp/testdir/file
-bash: /tmp/testdir/file: Permission denied
[user2@brnv1a27 ~]$
[user2@brnv1a27 ~]$ cat /tmp/testdir/file
user1
[user2@brnv1a27 ~]$ exit
logout
[root@brnv1a27 tmp]#