UbuntuHelp:AutofsLDAP/zh

文章出处:

https://help.ubuntu.com/community/AutofsLDAP

翻译人员:

kmeng

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介绍

自动挂载是通过网络挂载目录的先进方法，并且非常容易管理非常节省带宽。在这个指南里，autofs将通过LDAP目录来配置。这样，我们将拥有一个集中的配置，并且可以最大化的利用已经配置起来的LDAP。很不错吧？

安装

首先，automount 由内核模块和用户界面工具这两部分组成。比较新的GNU/Linux发布版已经把automount编译进内核。你只要安装用户界面工具就可以了。需要安装的用户工具包括：autofs-ldap ldap-utils (参照 InstallingSoftware). 如果你只希望使用普通的配置文件，就不需要安装 autofs-ldap 。Autofs 介绍了安装过程.

Configuration

Configuring LDAP automount consists of several parts:

• configure openldap server to load the autofs-ldap schema
• entering LDAP entries for defining mountpoints
• entering LDAP entries for defining directories
• defining on the client to use LDAP for automount configuration

On the server

Tell the slapd daemon to load /etc/ldap/schema/autofs-ldap.schema:

sudo nano /etc/ldap/slapd.conf

and add the line

#Schema and objectClass definitions
include /etc/ldap/schema/autofs.schema

The autofs.schema line must be inserted after core.schema and cosine.schema Finally restart the slapd service:

sudo /etc/init.d/slapd restart

Populating LDAP

In the LDAP directory, you have to enter two kinds of entries:

• entry that defines the mountpoint
• entry that defines the directory under a mountpoint

Here is an example of LDAP entries based on the OpenLDAPServer installation.

dn: ou=admin,dc=example,dc=com
ou: admin
objectClass: top
objectClass: organizationalUnit

dn: ou=automount,ou=admin,dc=example,dc=com
ou: automount
objectClass: top
objectClass: organizationalUnit

dn: ou=auto.master,ou=automount,ou=admin,dc=example,dc=com
ou: auto.master
objectClass: top
objectClass: automountMap
  
dn: cn=/home,ou=auto.master,ou=automount,ou=admin,dc=example,dc=com
cn: /home
objectClass: top
objectClass: automount
automountInformation: ldap:ou=auto.home,ou=automount,ou=admin,dc=example,dc=com --timeout=60 --ghost

dn: cn=lionel,ou=auto.home,ou=automount,ou=admin,dc=example,dc=com
cn: lionel
objectClass: top
objectClass: automount
automountInformation: -fstype=nfs,rw,hard,intr,nodev,exec,nosuid,rsize=8192,wsize=8192 nfs.example.com:/export/home/lionel

On the client

On the client, you only have to add the LDAP map to the automount entry of /etc/nsswitch.conf. Edit your /etc/nsswitch.conf and add the line:

automount:      files ldap

The package ldap-utils has to be configured. Edit /etc/ldap/ldap.conf:

BASE    dc=example,dc=com
URI     ldap://ldap.example.com

Launch

autofs looks in the LDAP directory for the automountMap. You just have to launch autofs:

sudo /etc/init.d/autofs start

Test

Just check with a mount that automount has been started correctly:

mount | grep automount
automount(pid5058) on /home type autofs (rw,fd=4,pgrp=5058,minproto=2,maxproto=4)