一、背景

亲测可用,之前搜索了很多博客，啥样的都有，就是不介绍报错以及配置用处，根本不懂照抄那些配置是干啥的，稀里糊涂的按照博客搭完也跑不起来，因此记录这个。

项目背景：公司项目当前采用http协议+shiro+mysql的登录认证方式，而现在想支持ldap协议认证登录然后能够访问自己公司的项目网站。

举例说明：假设我们公司有自己的门户网站，现在我们收购了一家公司，他们数据库采用ldap存储用户数据，那么为了他们账户能登陆我们公司项目所以需要集成，而不是再把他们的账户重新在mysql再创建一遍，万一人家有1W个账户呢，不累死了且也不现实啊。

需要安装openldap+kerberos，且ldap和kerberos安装在同一台服务器上，当前版本如下：

centos 7.9
openldap 2.4.44
phpldapadmin 1.2.5
服务器IP：10.110.38.162
Kerberos ：Kerberos 5 release 1.15.1

由于openldap都安装了，但是没有可视化客户端看起来也不方便呀，所以该文章就是解决可视化客户端查看的问题。

二、正文

2.1 安装phpldapadmin

ldap装好后，下面安装web界面phpldapadmin。
注意： yum安装时，会自动安装apache和php的依赖。
注意： phpldapadmin很多没更新了，只支持php5，如果你服务器的环境是php7，则会有问题，页面会有各种报错。

yum install -y phpldapadmin
 
# 修改apache的phpldapadmin配置文件
# 修改如下内容，放开外网访问，这里只改了2.4版本的配置，因为centos7 默认安装的apache为2.4版本。所以只需要改2.4版本的配置就可以了
# 如果不知道自己apache版本，执行 rpm -qa|grep httpd 查看apache版本
 
vim /etc/httpd/conf.d/phpldapadmin.conf
-----------------------------------------------------------------
  <IfModule mod_authz_core.c>
    # Apache 2.4
    Require all granted
  </IfModule>
-----------------------------------------------------------------
 
 
# 修改配置用DN登录ldap
vim /etc/phpldapadmin/config.php
-----------------------------------------------------------------
# 398行，默认是使用uid进行登录，我这里改为cn，也就是用户名
$servers->setValue('login','attr','cn');
 
# 460行，关闭匿名登录，否则任何人都可以直接匿名登录查看所有人的信息
$servers->setValue('login','anon_bind',false);
 
# 519行，设置用户属性的唯一性，这里我将cn,sn加上了，以确保用户名的唯一性
$servers->setValue('unique','attrs',array('mail','uid','uidNumber','cn','sn'));
-----------------------------------------------------------------
 
 
# 启动apache
systemctl start httpd
systemctl restart httpd
systemctl restart httpd.service

2.4 登录phpldapadmin界面

http://10.110.38.162:8080/phpldapadmin/
其中cn：admin 密码：123456

三、安装途中可能碰到的报错

错误场景1：执行步骤“安装phpldapadmin”执行命令：yum install -y phpldapadmin时报错

错误原因：是因为使用yum搜索某些rpm包，找不到包是因为CentOS是RedHat企业版编译过来的，去掉了所有关于版权问题的东西。安装EPEL后可以很好的解决这个问题。EPEL(Extra Packages for Enterprise Linux )即企业版Linux的扩展包，提供了很多可共Centos使用的组件，安装完这个以后基本常用的rpm都可以找到。

解决方案：

执行命令：
yum localinstall http://rpms.famillecollet.com/enterprise/remi-release-7.rpm
再执行
yum -y install phpldapadmin

错误场景2：安装phpldapadmin完成后，apache启动报错，执行启动命令systemctl start httpd、systemctl restart httpd、systemctl restart httpd.service报错

详细错误

May 07 10:10:15 localhost.localdomain dbus[580]: [system] Successfully activated service 'org.freedesktop.problems'
May 07 10:12:34 localhost.localdomain kernel: perf: interrupt took too long (16513 > 15557), lowering kernel.perf_event_max_sample_rate to 12000
May 07 10:13:48 localhost.localdomain polkitd[617]: Registered Authentication Agent for unix-process:5169:404183 (system bus name :1.220 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
May 07 10:13:52 localhost.localdomain polkitd[617]: Operator of unix-process:5169:404183 successfully authenticated as unix-user:root to gain ONE-SHOT authorization for action org.freedesktop.systemd1.manage-units for system-bus-name::1.221 [systemctl start httpd] (owne
May 07 10:13:52 localhost.localdomain systemd[1]: Starting The Apache HTTP Server...
-- Subject: Unit httpd.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has begun starting up.
May 07 10:13:52 localhost.localdomain httpd[5186]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain. Set the 'ServerName' directive globally to suppress this message
May 07 10:13:52 localhost.localdomain httpd[5186]: (98)Address already in use: AH00073: make_sock: unable to listen for connections on address [::]:80
May 07 10:13:52 localhost.localdomain httpd[5186]: (98)Address already in use: AH00073: make_sock: unable to listen for connections on address 0.0.0.0:80
May 07 10:13:52 localhost.localdomain httpd[5186]: no listening sockets available, shutting down
May 07 10:13:52 localhost.localdomain httpd[5186]: AH00015: Unable to open logs
May 07 10:13:52 localhost.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
May 07 10:13:52 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.
-- Subject: Unit httpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has failed.
-- 
-- The result is failed.
May 07 10:13:52 localhost.localdomain polkitd[617]: Unregistered Authentication Agent for unix-process:5169:404183 (system bus name :1.220, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
May 07 10:13:52 localhost.localdomain systemd[1]: Unit httpd.service entered failed state.
May 07 10:13:52 localhost.localdomain systemd[1]: httpd.service failed.
May 07 10:13:58 localhost.localdomain su[5193]: (to root) zws on pts/0
May 07 10:13:58 localhost.localdomain su[5193]: pam_unix(su:session): session opened for user root by zws(uid=1000)
May 07 10:13:58 localhost.localdomain dbus[580]: [system] Activating service name='org.freedesktop.problems' (using servicehelper)
May 07 10:13:58 localhost.localdomain dbus[580]: [system] Successfully activated service 'org.freedesktop.problems'
May 07 10:14:12 localhost.localdomain polkitd[617]: Registered Authentication Agent for unix-process:5232:406549 (system bus name :1.226 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
May 07 10:14:12 localhost.localdomain systemd[1]: Starting The Apache HTTP Server...
-- Subject: Unit httpd.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has begun starting up.
May 07 10:14:12 localhost.localdomain httpd[5239]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain. Set the 'ServerName' directive globally to suppress this message
May 07 10:14:12 localhost.localdomain httpd[5239]: (98)Address already in use: AH00073: make_sock: unable to listen for connections on address [::]:80
May 07 10:14:12 localhost.localdomain httpd[5239]: (98)Address already in use: AH00073: make_sock: unable to listen for connections on address 0.0.0.0:80
May 07 10:14:12 localhost.localdomain httpd[5239]: no listening sockets available, shutting down
May 07 10:14:12 localhost.localdomain httpd[5239]: AH00015: Unable to open logs
May 07 10:14:12 localhost.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
May 07 10:14:12 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.
-- Subject: Unit httpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has failed.
-- 
-- The result is failed.
May 07 10:14:12 localhost.localdomain systemd[1]: Unit httpd.service entered failed state.
May 07 10:14:12 localhost.localdomain systemd[1]: httpd.service failed.
May 07 10:14:12 localhost.localdomain polkitd[617]: Unregistered Authentication Agent for unix-process:5232:406549 (system bus name :1.226, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)

错误原因：nginx和apache默认端口都是80，因为nginx得用不能随意修改，所以只能考虑修改apache端口号。

解决方案：修改apache端口号即可，比如改为8080。
修改apache端口号文件所在路径：/etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf

修改完成后执行命令即可。

systemctl start httpd
systemctl restart httpd
systemctl restart httpd.service

重要信息

官网：https://ais.cn/u/vEbMBz

标签：10,07,httpd,May,phpldapadmin,Centos7.9,localdomain,安装,localhost
From： https://www.cnblogs.com/bigcat26/p/18679958

Centos7.9安装phpldapadmin