CentOS authlib软件已被广泛应用但是也在不断的更新，这里介绍CentOS authlib软件安装设置使用，帮助大家安装更新CentOS authlib软件系统。下面介绍使用rpm安装CentOS authlib软件步骤操作。
A、CentOS authlib软件安装依懒的包
[root@localhost ~]# yum -y install postgresql-devel expect libtool-ltdl-devel
[root@localhost ~]# wget http://prdownloads.sourceforge.net/courier/courier-authlib-0.61.0.tar.bz2
[root@localhost ~]# tar xjf courier-authlib-0.61.0.tar.bz2
[root@localhost ~]# cd courier-authlib-0.61.0
[root@localhost courier-authlib-0.61.0]# cp courier-authlib.spec $SPEC
[root@localhost courier-authlib-0.61.0]# cd ..
[root@localhost ~]# cp courier-authlib-0.61.0.tar.bz2 $SOURCE
[root@localhost ~]# cd $SPEC
[root@localhost SPECS]# rpmbuild -bb courier-authlib.spec （创建rpm文件）
B、安装生成的rpm
[root@localhost SPECS]# cd $RPMS/i386
[root@localhost i386]# rpm -ivh courier-authlib-0.61.0-1.i386.rpm
[root@localhost i386]# rpm -ivh courier-authlib-devel-0.61.0-1.i386.rpm
[root@localhost i386]# rpm -ivh courier-authlib-mysql-0.61.0-1.i386.rpm
C、CentOS authlib软件配置daemon
[root@localhost i386]# cd /etc/authlib/
[root@localhost authlib]# mv authdaemonrc authdaemonrc.bak
[root@localhost authlib]# vim authdaemonrc
输入下面的内容：
authmodulelist="authmysql"
authmodulelistorig="authmysql"
daemons=10
authdaemonvar=/var/spool/authdaemon
DEBUG_LOGIN=2
DEFAULTOPTIONS="wbnodsn=1"
LOGGEROPTS=""
D、CentOS authlib软件配置authmysqlrc
[root@localhost authlib]# mv authmysqlrc authmysqlrc.bak
[root@localhost authlib]# vim authmysqlrc
输入下面的内容：
MYSQL_SERVER localhost
MYSQL_USERNAME extmail
MYSQL_PASSWORD extmail
MYSQL_PORT 0
MYSQL_SOCKET /var/lib/mysql/mysql.sock
MYSQL_OPT 0
MYSQL_DATABASE extmail
MYSQL_SELECT_CLAUSE SELECT username,password,"",uidnumber,gidnumber,
CONCAT('/home/data/domains/',homedir),
CONCAT('/home/data/domains/',maildir),
quota,
name
FROM mailbox
WHERE username = '$(local_part)@$(domain)'
E、启动CentOS authlib软件
[root@localhost ~]# service courier-authlib start
Starting Courier authentication services: authdaemond
[root@localhost ~]# chmod 777 /var/spool/authdaemon
以上讲解手动使用rpm系统安装CentOS authlib软件。
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