Cannot restore segment prot after reloc: Permission denied solution environment: Linux localhost. localdomain 2.6.18-92. after el5PAE apache2 + php4 is integrated, the following error occurs when apache is started: root @ localhost fgn] #/usr/local/apache/bin/apachectl restart httpd: syntax error on line 53 of/usr/local/apache/conf/httpd. conf: Cannot load/usr/local/apache/modules/libphp4.so into server:/usr/local/apache/modules/libphp4.so: cannot restore segment prot after reloc: Permission denied solution: www.2cto.com this is because of SELINUX problems. you need to disable selocation and run:/usr/sbin/setenforce 0 reference: When packaging an application on RHEL or CentOS, you may receive the following error: cannot restore segment prot after reloc: Permission deniedThis is likely due the SE Linux setting being set to "enforcing ". to Temporarily disable enforcement on a running system/usr/sbin/setenforce 0 To permanently disable enforcement during a system startup change "enforcing" to "disabled" in ''/etc/selinux/config ''and reboot .. by default, CentOS 5 has the SE Linux feature set to "enforcing ". we are looking into ways to removing these steps.