root@ubuntu:/var/lock/apache2# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.10
DISTRIB_CODENAME=saucy
DISTRIB_DEscRIPTION="Ubuntu 13.10"
root@ubuntu:~# /etc/init.d/apache2 start
 * Starting web server apache2                                                                                                                            *
 * The apache2 configtest failed.
Output of config test was:
AH00526: Syntax error on line 86 of /etc/apache2/apache2.conf:
Invalid command 'LockFile', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed.
The Apache error log may have more information.
/etc/apache2/apache2.conf   ¾Æ·¡Ã³·³ ¼öÁ¤
Replacing this line
LockFile ${APACHE_LOCK_DIR}/accept.lock
with this one
Mutex file:${APACHE_LOCK_DIR} default