debian小记

heshao2005

　　dpkg-reconfigure tzdata 修改时区

　　gpm 支持鼠标
service gpm restart
　　mods-enabled
a2enmod rewrite
a2enmod php5 ssl
　　a2dismod 关闭
　　debian5.0添加acl功能
　　1.debian默认没有安装
　　下面来安装apt-get install acl
安装之后用fidisk -l
　　sa:~# fdisk -l
　　Disk /dev/hdb: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd274d274
　　Device Boot      Start         End      Blocks   Id  System
/dev/hdb1   *           1        4660    37431418+  83  Linux
/dev/hdb2            4661        4865     1646662+   5  Extended
/dev/hdb5            4661        4865     1646631   82  Linux swap / Solaris

　　加载到hadb1 盘下面
　　mount -o remount,acl /dev/hdb1
　　setfacl -m g:test:rw data 指行没有报错
　　------------------------------------------------------------------------------
　　参照文档如下
　　Fully patched Kernel version 2.4 or 2.6

Having the ACL utilities

Having a slightly modified version of file utils.

We are going to work with kernel version 2.6 because 2.6 series of kernels makes some attempts to standardise the ACL methods.

Verifying Kernel support for ACL

Checking log files

#cat /boot/config-2.6.15.1-386 | grep _ACL

This should give the below results

CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_XFS_POSIX_ACL=y

Install ACL in Debian

#apt-get install acl

Activating ACL support in a partition (Ext3)

By default kernel version 2.6 supports ext2, ext3, jfs, xfs filesystems for ACL

If you have already partition(ex:-hda6) in your hard disk you need to use the following command

#mount -o remount,acl /dev/hda6

Now we need to modify the /etc/fstab file and add the ACL options

/dev/hda6 / ext3 `acl`,defaults,errors=remount-ro 0 1

Adding and Modifying ACL

In Order to use ACL under linux you need to use two commands setfacl and getfacl

Now we will see each one with an example