服务安装：
安装依赖：yum install php70-ldap.x86_64 -y (版本尽量大于5.3，否则会提示更新php程序)
yum install httpd -y
安装Self Service Password：yum install https://ltb-project.org/rpm/6Server/noarch/self-service-password-1.1-1.el6.noarch.rpm
配置apache: /etc/httpd/conf.d/self-service-password.conf
NameVirtualHost *:80
<VirtualHost *:80>
ServerName ssp.xinniu.com
DocumentRoot /usr/share/self-service-password
DirectoryIndex index.php
AddDefaultCharset UTF-8
<Directory "/usr/share/self-service-password">
AllowOverride None
Allow from all
</Directory>
LogLevel warn
ErrorLog /var/log/httpd/ssp_error_log
CustomLog /var/log/httpd/ssp_access_log combined
</VirtualHost>
配置Self Service Password,支持密码修改和邮件重置： vim /usr/share/self-service-password/conf/config.inc.php
这个文件配置项太多了，只写一下改动的
$ldap_url = "ldap://172.xx.xx.xx:389";
$ldap_starttls = false;
$ldap_binddn = "cn=admin,dc=xxxx,dc=com";
$ldap_bindpw = "****";
$ldap_base = "dc=xxxx,dc=com";
$ldap_login_attribute = "uid";
$ldap_fullname_attribute = "cn";
$ldap_filter = "(&(objectClass=person)($ldap_login_attribute={login}))";
$mail_from = "msg_data@xxxx.com";
$mail_from_name = "Self Service Password";
$mail_signature = "";
$notify_on_change = true;
https://github.com/PHPMailer/PHPMailer)
$mail_sendmailpath = '/usr/sbin/sendmail';
$mail_protocol = 'smtp';
$mail_smtp_debug = 0;
$mail_debug_format = 'html';
$mail_smtp_host = 'localhost';
$mail_smtp_auth = true;
$mail_smtp_user = 'msg_data@xxxxx.com';
$mail_smtp_pass = 'xxxxx;
$mail_smtp_port = 25;
keyphrase = "secret";
配完后 systemctl restart httpd
完成之后，测试系统是否可以使用
打开页面
d
修改密码时不用输入整个dn，直接输入前缀就可以了
测试修改密码时，报错，ldap服务器拒绝我们修改的密码，经过查看日志加上自己手动验证，发现普通用户没有修改密码的权限。 然后查看ldap官方的手册：http://www.openldap.org/doc/admin24/access-control.html
研究后发现需要修改ldap的条目 文件添加ACL 信息，问题解决，添加命令如下：
ldapmodify -Y EXTERNAL -H ldapi:/// -f updatepass.ldif
updatepass.ldif 文件内容如下：
dn: olcDatabase={2}hdb,cn=config
changetype: modify
add: olcAccess
olcAccess: to attrs=userPassword
by self =xw
by anonymous auth
by * none
olcAccess: to *
by self write
by users read
by * none
然后试下真的可以修改密码了
