問題：
[root@localhost lampp]# ./lampp start
Starting XAMPP for Linux 1.7.4...
/opt/lampp/bin/php: error while loading shared libraries: libz.so.1: cannot enable executable stack as shared object requires: Permission denied
XAMPP: Starting Apache with SSL ...
/opt/lampp/bin/httpd: error while loading shared libraries: libexpat.so.0: cannot enable executable stack as shared object requires: Permission denied
XAMPP: Error 127! Couldn't start Apache!
XAMPP: Starting diagnose...
XAMPP: Sorry, I've no idea what's going wrong.
XAMPP: Please contact our forum http://www.apachefriends.org/f/
XAMPP: Starting MySQL...
./bin/my_print_defaults: error while loading shared libraries: libz.so.1: cannot enable executable stack as shared object requires: Permission denied
XAMPP: Couldn't start MySQL!
XAMPP: Starting ProFTPD...
XAMPP: /opt/lampp/sbin/proftpd: error while loading shared libraries: libcrypto.so.1.0.0: cannot enable executable stack as shared object requires: Permission denied
XAMPP: Error 127! Couln't start ProFTPD!
XAMPP for Linux started.
解決辦法：
[root@localhost lampp]# setsebool -P allow_execstack on
[root@localhost lampp]# ./lampp start
如果還提示有什麼未啓動重啓一下就好了。