rely: 依赖: relier, reliance , reliable : i don‘t think he is a reliable man . we must lay stress on (强调) self reliance(自力更生)
comment out 注释掉, present: 目前的; 在场的,出席的(这个时候要放在被修饰的名词后面: the people present are students)
files are processed in alphabetical order.
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apache server就是httpd,
httpd包括:
一部分: sysconfig/httpd是用来配置httpd service这个服务的
二部分: /etc/httpd/: httpd.conf文件, conf.d目录
三部分: 实体文件/var下的: /var/run/httpd.pid, /var/log/httpd/access_log, error_log, 和/var/www/html+error+icons+cgi_bin
原文：http://www.cnblogs.com/bkylee/p/4987753.html