本来使用的是directadmin面板一键包安装的lamp环境，现在升级了新版本后apache起不来了。

如下报错：

Starting httpd: httpd: 
Syntax error on line 50 of /etc/httpd/conf/httpd.conf: 
Syntax error on line 1 of /etc/httpd/conf/extra/httpd-phpmodules.conf: 
Cannot load /usr/lib/apache/mod_ruid2.so into server: 
/usr/lib/apache/mod_ruid2.so: cannot open shared object file: No such file or directory



Starting httpd: httpd: 
Syntax error on line 50 of /etc/httpd/conf/httpd.conf: 
Syntax error on line 3 of /etc/httpd/conf/extra/httpd-phpmodules.conf: 
Cannot load /usr/lib/apache/mod_mpm_prefork.so into server: 
/usr/lib/apache/mod_mpm_prefork.so: cannot open shared object file: No such file or directory

我注释了上面两个文件，apache起来了，目前的环境是Server version: Apache/2.4.12 使用directadmin一键包升级后，php升级到了5.5。

回到问题，这两个文件/usr/lib/apache/mod_ruid2.so和/usr/lib/apache/mod_mpm_prefork.so在目录下都不存在，directadmin用不了，咋解决?

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