apache常見錯誤總結：
1、./configure報錯
Configuring Apache Portable Runtime library ...
checking for APR... configure: error: the --with-apr parameter is incorrect. It must specify an install prefix, a build directory, or an apr-config file.
解決辦法:
下載安裝
apr：http://apache.etoak.com//apr/apr-1.4.6.tar.gz
apr-utils：http://apache.etoak.com//apr/apr-util-1.4.1.tar.gz
或者yum -y install apr apr-util
checking for pcre-config... false
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/
解決辦法：
[[email protected] httpd-2.4.1]# yum -y install pcre-devel
2、啓動報錯：
[[email protected] bin]# service apache start
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
httpd (pid 912) already running
其實在這裏並不是報錯，只是個提醒信息，解決辦法比較多
（1）、在/etc/hosts寫下當前ip與主機名的對應關係
（2）、在本機指能解析本機主機名的DNS
（3）、修改主配置文件，找到ServerName這一行寫入本機主機名